CN211956844U - Calculation aid - Google Patents

Abstract

The utility model provides a calculation-assisting tool, including several operator strip, operator dish and box body, wherein, it places the hole to be provided with operator strip on the operator dish, it places the chamber to form operator strip in the box body, operator strip is placed the intracavity and is provided with operator strip and places the dish, children utilize this calculation-assisting tool, when carrying out the addition and subtraction operation of digit, through putting in the operator dish, the mode of moving operator strip operates, can be directly perceived through using calculation-assisting tool, vividly, observe the relation between each number of decimal number and the size of numerical value clearly, thereby can be natural understanding with understanding the addition, the subtraction, the arithmetic of multiplication, when helping children master addition and subtraction arithmetic fast, the children who effectively solves the elementary arithmetic understand the theory thoroughly to the arithmetic, and think the obstacle problem of transition to abstract thinking by the image in the mathematical learning.

Description

Calculation aid

Technical Field

The utility model relates to a teaching equipment field, more specifically say, relate to a calculation aid instrument.

Background

For most children with weak mathematical foundation in primary school, the mathematical theory of decimal numbers and the operation principles of addition and subtraction, especially carry addition and backspace subtraction, cannot be fully understood and firmly mastered in the process of elementary mathematics, so that the mathematical thinking is unclear and the mathematical calculation capability is slowly improved. Because of the trouble of unskilled and correct mathematical operation, the enthusiasm of children on mathematical learning is influenced, and even the condition that students are afraid of learning mathematics often appears.

With the continuous progress and development of society, people pay more and more attention to the good elementary education and the formation of positive thinking quality of children, and for the children who learn the mathematical operation at first, the children who help with the auxiliary teaching tool help the children who learn at first to master addition and subtraction algorithm fast, and form good mathematical thinking mode gradually.

Teaching tools related to mathematical operation in the prior art cannot effectively understand the operation principle of addition and subtraction and multiplication from visual and visual comparison. For example, the abacus which is an auxiliary tool for manual calculation can only add or subtract partial numbers in one place for children in the beginning stage, and can not understand thinking modes such as carry, and for example, the auxiliary teaching tool which can operate by stirring beads can only carry out mathematical operation in a simple number-number mode, and can not promote the children to form a good mathematical thinking mode in the beginning stage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the teaching tool in the aspect of the relevant mathematical operation among the prior art, can not effectively understand the operation principle of addition subtraction and multiplication in the contrast of directly perceived image, for example the appurtenance abacus that manually operation calculated, to the children in the beginner stage, can only add and subtract partial single digit, can not understand thinking modes such as carry, for example again in order to stir the supplementary teaching tool that the pearl carried out the operation, can only carry out mathematical operation through the digital mode of simple number, can not promote children and form the problem of good mathematical thinking mode in the beginner stage.

The utility model provides an arithmetic tool, which uses a 10 multiplied by 10 (100) operator disk as reference, and can make the elementary arithmetic children quickly form image cognition that ten 1 is 10, ten 10 is one hundred and 10 and 1 to 9 numerical relations through the combined use of the operator disk and the operator; meanwhile, the operation principle of addition and subtraction and multiplication can be quickly understood from visual comparison, and the numerical relation is clarified through visual demonstration, so that the calculation methods of addition, subtraction and multiplication can be accurately and quickly mastered. The same way that a player can deduce various chess games by moving the chess pieces on the chessboard according to a certain rule, and the player can put the chess pieces in the abacus and move operators to carry out addition, subtraction and multiplication operations according to requirements and can also demonstrate and solve the problems in a diversified mode. Therefore, the calculation-assisting tool is very helpful for promoting the active mathematical operation thinking of children, thereby realizing the easy crossing from the image thinking to the abstract thinking.

The utility model provides a help calculation instrument can be directly perceived, image, observe the magnitude of relation and numerical value between the each figure of decimal number clearly through help calculation instrument to the theory that can be natural and understand addition, subtraction, multiplication, when help children master addition and subtraction theory fast, the children who effectively solves the elementary math count understand the theory not thorough, and by the obstacle problem of image thinking to abstract thinking transition in the mathematics learning.

In order to solve the above technical problem, an embodiment of the present invention discloses a calculation aid, including:

the number of operators included in each operator bar is N, N is a positive integer which is more than or equal to 1 and less than or equal to 10, and the operators included in each operator bar are detachably connected end to end;

the device comprises an operator disk, wherein a plurality of operator bar placing holes are formed in the surface of one side of the operator disk, and M columns and 10 rows are formed in the operator bar placing holes, wherein M is more than or equal to 10; the shape of each operator strip placing hole is matched with that of an operator strip, and the operator strip placing holes in the same row are mutually communicated;

the box body is of a hollow structure with an opening at one side and an operator strip placing cavity;

the operator tray is detachably connected with the box body, and the operator tray is arranged at the opening of the box body and used for shielding the opening.

According to the utility model discloses a further embodiment, the utility model discloses an implementation mode discloses a help calculation instrument, and every 10 rows of operator strips place the hole, are provided with operator strips and place hole partition portion. The size of the learners visually observing the number can be achieved by arranging the operator strip placing hole separating parts, every two operator strips placing hole separating parts comprise 100 numbers counted by 10 x 10, so that the children in the initial stage can conveniently read through the operator tray, and errors are avoided.

According to the utility model discloses a further embodiment, the utility model discloses an implementation mode discloses a help calculation instrument, still sets up on the box body and distinguishes operator strip of open-ended and get the mouth.

According to the utility model discloses another embodiment, the utility model discloses an embodiment discloses a calculation aid, operator's strip places and is provided with the slide rail on the chamber wall in chamber, and operator's strip is placed the intracavity and is provided with operator's strip and places the dish, and operator's strip places and is provided with the draw runner on the dish, and operator's strip places the dish and places the chamber wall in chamber through slide rail and draw runner sliding connection in operator's strip, and operator's strip places the dish and gets through operator's strip and put a mouthful pull. Set up the operator strip through placing the intracavity at the operator strip and place the dish, and the operator strip is placed the dish and is got in the operator strip and put the mouth through setting up draw runner and slide rail pull, can make the user accomodate the operator strip inside the box body, and the person of facilitating the use accomodates and takes the operator strip.

According to another embodiment of the present invention, an embodiment of the present invention discloses a calculation aid, including: the operator bars comprise a first kind of operator bar and a second kind of operator bar, wherein the first kind of operator bar is the operator bar comprising one operator, the second kind of operator bar is the operator bar comprising P operators, and P is a positive integer which is more than or equal to 2 and less than or equal to 10; and sixty first kind operator strips are arranged, and thirty second kind operator strips are respectively arranged. By setting the first kind operator bar and the second kind operator bar, the learner can flexibly use the first kind operator bar and the second kind operator bar to carry out digital operation in the operation process, the operation diversity is increased, and the mathematical operation thinking of the learner is diverged. According to the utility model discloses a further embodiment, the utility model discloses an implementation mode discloses a help calculation instrument, is provided with each 20 of operator's strip of first sign, second sign and third sign in the operator's strip of first kind, is provided with each 10 of operator's strip of first sign, second sign and third sign in the operator's strip of second kind. By setting the operator bars as the first identifier, the second identifier and the third identifier, the identification degree of the beginner children in the using process can be increased, and the interest of the children in learning digital operation is improved;

according to the utility model discloses a further concrete implementation mode, the utility model discloses an implementation mode discloses a help calculation instrument, and one side that the operator dish was provided with operator strip and places the hole is provided with first block portion, and the opening part of box body is provided with the second block portion that matches with first block portion, and operator dish and box body can dismantle the connection through first block portion and second block portion. Through setting up first block portion and second block portion, can make the abacus dish and box body can dismantle through first block portion and second block portion and connect, can utilize the abacus dish by the efficient, can shield the opening part of box body when the operation is learned, make the abacus dish and box body form a inclosed whole combination.

According to the utility model discloses a further embodiment, the utility model discloses an embodiment discloses a help calculation instrument, and a sub-rack is provided with one side edge department that the hole was placed to the operator strip and is provided with first magnetism and inhale the piece, and the opening edge department of box body is provided with the second magnetism that matches with first magnetism and inhales the piece, and the formula is inhaled through first magnetism and second magnetism to calculator dish and box body and is connected. Through setting up first magnetism and inhale piece and second magnetism for the formula is inhaled through first magnetism to piece and second magnetism to the connection of piece magnetism, can bring good experience effect for the user with box body.

According to another embodiment of the present invention, in the calculation assisting tool disclosed in the embodiments of the present invention, a third magnetic attraction member is disposed in the operator strip placing hole, a fourth magnetic attraction member matched with the third magnetic attraction member is disposed on one side of the operator strip, and the operator strip is fixed in the operator strip placing hole through the third magnetic attraction member and the fourth magnetic attraction member; or the edge in operator hole is provided with the fixed part, and the operator strip is fixed in the operator strip through the fixed part and places downtheholely. Inhale the piece through setting up the third magnetism and inhale the piece with the fourth magnetism, can make operator's strip inhale the piece through the third magnetism and inhale the piece with the fourth magnetism and be fixed in operator's strip and place downtheholely, prevent that children from making operator's strip dislocation easily in the use, can not be fine be fixed in the operator dish, bring good experience effect for the user.

According to the utility model discloses a further embodiment, the utility model discloses an embodiment discloses a calculation aid, is provided with the button lock that is used for fixed operator strip to place the dish near operator strip on the outer wall of box body gets the position of putting the mouth, and/or operator strip places and is provided with the handle that is used for extracting operator strip and places the dish on the dish. By arranging the key lock, a user can fixedly lock the operator bar placing disc to prevent the operator bars in the operator placing cavity from sliding out; through setting up the handle, can make the user conveniently extract operator strip and place the dish.

The utility model provides a help calculation instrument, children carry out mathematical operation through putting, the mode of moving operator strip, can be directly perceived through using help calculation instrument, vividly, observe the relation between each figure of decimal number and the size of numerical value clearly, thereby the theory of understanding addition, subtraction, multiplication that can be natural, when helping children master addition and subtraction algorithm fast, the children who effectively solves the elementary math count understand the theory not thoroughly, and by the obstacle problem of image thinking to abstract thinking transition in the mathematical learning.

The utility model has the advantages that:

the utility model provides a calculation aid, which can enable children to carry out mathematical operation by placing and moving operator strips on an operator disk by setting the operator disk and a plurality of operator strips and arranging operator strip placing holes on the operator disk, wherein the shapes of the operator strip placing holes are matched with the shapes of the operator strips; the box body with the hollow structure and the opening at one side and the operator strip placing cavity is arranged, so that the operator strips which are not used can be contained in the box body by children, and the operation and the use are convenient; by arranging the detachable operator strips which are connected end to end, the learner can flexibly use various operator strips to carry out digital operation in the operation process, the operation diversity is increased, and the mathematical operation thinking of the learner is diverged.

In a word, the utility model provides a pair of help calculating instrument can solve the teaching tool in the aspect of relevant mathematical operation among the prior art, can not effectively understand the operation principle of addition subtraction and multiplication in the contrast of directly perceived image. For example, the abacus which is an auxiliary tool for manual calculation can only add or subtract partial numbers in one place for children in the beginning stage, and can not understand thinking modes such as carry, and for example, the auxiliary teaching tool which can operate by stirring beads can only carry out mathematical operation in a simple number-number mode, and can not promote the children to form a good mathematical thinking mode in the beginning stage.

The method has the advantages that the relation among the digits of the decimal number and the magnitude of the numerical value can be visually, vividly and clearly observed by using the aid of the aid, so that the arithmetic principles of addition, subtraction and multiplication can be naturally known and understood, the problem that children who learn arithmetic are not thorough in understanding the arithmetic principles and the problem that the image thinking is transited to the abstract thinking in mathematical learning can be effectively solved while the children are helped to quickly master the arithmetic principles of addition and subtraction.

Drawings

Fig. 1 is a schematic structural diagram of a calculation aid provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a case in the calculation aid tool shown in FIG. 1;

FIG. 3 is a schematic diagram of the structure of an abacus disk in the calculation-aid tool shown in FIG. 1;

FIGS. 4(a) -4(j) are some schematic structural diagrams of operator bars in the calculation-aid tool shown in FIG. 1;

FIG. 5 is a schematic diagram of an abacus that calculates a numerical operation process by the calculation-aid tool shown in FIG. 1;

FIG. 6 is a schematic diagram of an abacus that calculates a numerical operation process by the calculation-aid tool shown in FIG. 1;

FIG. 7 is a schematic diagram of an abacus that calculates a numerical operation process by the calculation-aid tool shown in FIG. 1;

FIG. 8 is a schematic diagram of an abacus that calculates a numerical operation process by the calculation-aid tool shown in FIG. 1;

fig. 9 is a schematic diagram of an operator disk of the calculation aid tool shown in fig. 1 for calculating a numerical operation process.

Reference numerals:

100: operator bars are calculated; 200: an abacus; 2100: operator bar placing hole separating parts are calculated; 2200: operator bar placing holes are calculated; 300: a box body; 3100: operator bar placing cavities; 3200: a sub-swath placing disc; 3300: a first engaging portion; 3400: a second engaging portion; 3500: a handle; 3600: a key lock; 400: a first magnetic attraction member; 500: a second magnetic attachment.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The method aims to solve the problem that the operation principle of addition and subtraction and multiplication cannot be effectively understood from visual and visual comparison in the teaching tool related to mathematical operation in the prior art. For example, the abacus which is an auxiliary tool for manual calculation can only add or subtract partial numbers in one place for children in the beginning stage, and can not understand thinking modes such as carry, and for example, the auxiliary teaching tool which can operate by stirring beads can only carry out mathematical operation in a simple number-number mode, and can not promote the children to form a good mathematical thinking mode in the beginning stage.

As shown in fig. 1-4 (j), the present embodiment provides a calculation-aid tool, which includes a plurality of operator bars 100, an operator panel 200, and a box 300.

Further, the number of operators included in the operator bar 100 is N, and N is a positive integer greater than or equal to 1 and less than or equal to 10, and the operators included in each operator bar 100 are detachably connected end to end.

Specifically, as shown in fig. 4(a) -4(j), the operator bar 100 includes a first kind of operator bar 100 and a second kind of operator bar, where the first kind of operator bar is the operator bar 100 including one operator, the second kind of operator bar is the operator bar 100 including P operators, and P is a positive integer greater than or equal to 2 and less than or equal to 10; the first kind of operator bars are provided with sixty, the second kind of operator bars are respectively provided with thirty, the first kind of operator bars can be set into small cubic blocks with the edge length of 1.3 centimeters, and can also be set into cubic blocks with other specifications and sizes, and the embodiment is not particularly limited to this.

More specifically, 20 operator bars 100 with the first identifier, the second identifier, and the third identifier are arranged in the first kind of operator bar, and 10 operator bars 100 with the first identifier, the second identifier, and the third identifier are arranged in the second kind of operator bar.

More specifically, the first identifier, the second identifier, and the third identifier may be color identifiers corresponding to green, yellow, and blue, or may be external decoration images in other shapes, specifically, an oblique line diagram, a diamond line diagram, a circular filler diagram, and the like, or may be external decoration images in other types.

Further, as shown in fig. 1, a side surface of the operator tray 200 is provided with a plurality of operator bar placing holes 2200, and the operator bar placing holes 2200 are provided with M columns and 10 rows, where M is greater than or equal to 10; the shape of each operator bar placing hole 2200 matches the shape of the operator bar 100, and the operator bar placing holes 2200 of the same column communicate with each other.

Specifically, as shown in fig. 1, the operator bar placing hole separating portions 2100 are arranged every 10 rows of operator bar placing holes 2200, learners can visually observe the number by setting the operator bar placing hole separating portions 2100, and every two operator bar placing hole separating portions 2100 include 100 numbers counted by 10 × 10 at intervals, so that the children in the beginning stage can conveniently read through the operator panel, and errors are avoided.

Further, as shown in fig. 1-2, the box 300 is a hollow structure with one side open and having a chamber for placing the sub-strips 100.

Specifically, as shown in fig. 1 to 3, the operator tray 200 is detachably connected to the box 300, and the operator tray 200 is disposed at the opening of the box 300 for shielding the opening.

More specifically, as shown in fig. 1, a first engaging portion 3300 is disposed on one side of the abacus disk 200 where the spoke placement hole 2200 is disposed, a second engaging portion 3400 matching with the first engaging portion 3300 is disposed at the opening of the case 300, and the abacus disk 200 and the case 300 are detachably connected by the first engaging portion 3300 and the second engaging portion 3400. By providing the first engaging portion 3300 and the second engaging portion 3400, the abacus 200 and the case 300 can be detachably connected by the first engaging portion 3300 and the second engaging portion 3400, and the abacus 200 can be efficiently used, and the opening of the case 300 can be shielded while calculation and learning is performed, so that the abacus 200 and the case 300 form a sealed integral combination.

More specifically, as shown in fig. 1, a first magnetic attraction member 400 is disposed at one side edge of the operator tray 200 where the operator bar placement hole 2200 is disposed, a second magnetic attraction member 500 matched with the first magnetic attraction member 400 is disposed at an opening edge of the box body 300, and the operator tray 200 and the box body 300 are magnetically attracted by the first magnetic attraction member 400 and the second magnetic attraction member 500. Through setting up first magnetism and inhale piece 400 and second magnetism and inhale piece 500 for the formula is inhaled through first magnetism and inhale piece 400 and second magnetism to abacus 200 and box body 300 and is connected, can bring good experience effect for the user.

As shown in fig. 2, according to another specific implementation manner of this embodiment, the implementation manner of this embodiment discloses a calculation-assisting tool, and the box 300 is further provided with a sub-swath access opening different from the opening.

Further, be provided with the slide rail on the chamber wall that chamber 3100 was placed to the operator strip, the operator strip is placed and is provided with the operator strip in the chamber 3100 and place dish 3200, and the operator strip is placed and is provided with the draw runner on the dish 3200, and the operator strip is placed dish 3200 and is placed the chamber wall that chamber 3100 was placed to the operator strip through slide rail and draw runner sliding connection, and the operator strip is placed dish 3200 and is got through the operator strip and put mouthful drawable. Set up operator strip through placing operator strip in the chamber 3100 and place dish 3200, and operator strip places dish 3200 and can pull in operator strip through setting up draw runner and slide rail and get and put the mouth, can make the user accomodate operator strip 100 inside box body 300, and the person of facilitating the use uses.

Specifically, as shown in fig. 2, a third magnetic attraction piece (not shown in the figure) is disposed in the operator bar placing hole 2200, a fourth magnetic attraction piece (not shown in the figure) matched with the third magnetic attraction piece (not shown in the figure) is disposed on one side of the operator bar 100, and the operator bar 100 is fixed in the operator bar placing hole 2200 through the third magnetic attraction piece (not shown in the figure) and the fourth magnetic attraction piece (not shown in the figure); or a fixing portion is disposed at an edge of the operator stick placing hole 2200, and the operator stick 100 is fixed in the operator stick placing hole 2200 by the fixing portion. Inhale piece (not shown in the figure) and fourth magnetism through setting up the third magnetism, can make operator strip 100 inhale piece (not shown in the figure) and fourth magnetism and inhale piece (not shown in the figure) and be fixed in operator strip and place the hole 2200 through the third, prevent that children from making operator strip 100 dislocation easily in the use, in can not be fine being fixed in operator dish 200, bring good experience effect for the user.

As shown in fig. 1-2, according to another specific embodiment of this embodiment, the embodiment of this embodiment discloses an aid tool, a key lock 3600 for fixing an operator bar placing tray 3200 is disposed on an outer wall of the box 300 at a position close to the operator bar taking and placing opening, and/or a handle 3500 for extracting the operator bar placing tray 3200 is disposed on the operator bar placing tray 3200. By arranging the key lock 3600, a user can fixedly lock the operator bar placing disc 3200 to prevent the operator bars 100 in the operator bar placing cavity 3100 from sliding out; through setting up handle 3500, can make the user conveniently extract operator strip and place dish 3200.

Referring to fig. 5-6, fig. 5 is a schematic diagram of an operator disk of the calculation aid tool in the calculation digital operation process shown in fig. 1, a set of operator disks 200 taking 10 × 10 as an example is demonstrated, and a demonstration process diagram taking 7+8 as an example is demonstrated, as shown in fig. 5, is a learner 7+ 8? The mathematical addition operation of (1) may select an operator bar with P-7 and an operator bar with P-8 from the second kind of operator bars, place them in the operator bar placing hole 2200 corresponding to the operator panel 200, and the learner may observe that the operator bar with P-3 in the first column of the corresponding operator panel 200 may reach the full grid 10, as shown in fig. 6, the learner may place the operator bar with P-3 on the first column of the operator bar 200, and then place the operator bar with P-5 in the second column, thereby obtaining 7+ 8-15 by way of number.

As shown in fig. 5, the learner may be doing 7+ 8? The mathematical addition operation of (1) may select an operator bar with P ═ 7 from the second kind of operator bars to be placed in the operator bar placing hole 2200 corresponding to the operator panel 200, and then it is found through observation that the operator bar with P ═ 3 in the first column in the corresponding operator panel 200 can reach the full grid 10, and the operator bar with P ═ 8 in the second kind of operator bar may form an operator bar with P ═ 8 by placing the operator bar with P ═ 3 + the operator bar with P ═ 5 in combination, and then the operator bar with P ═ 3 in the first column reaches the full grid 10, as shown in fig. 6, and then the operator bar with P ═ 5 is placed on the second column of operator panel 200, thereby obtaining 7+8 ═ 15 by counting numbers.

As shown in fig. 5 and 7, the learner may also proceed with 7+ 8? The mathematical addition operation of (1) is observed that the first column in the corresponding operator panel 200 needs 3 operator bars with P being 1 to reach the full grid 10, as shown in fig. 7, the operator bars with P being 1 are placed in the first column of the operator panel 200, then the operator bars with P being 5 need to be placed in the second column are found by means of number, as shown in the figure, 7+8 being 15 is obtained by means of number, and the learner performs the mathematical operation by placing and moving the operator bars on the operator panel.

Referring to fig. 8-9, fig. 8 is a schematic diagram of an operator disk of the calculation aid tool in the calculation digital operation process shown in fig. 1, and a set of operator disks 200, as exemplified by 10 × 10, is demonstrated, as exemplified by 5 × 3? For example, in the demonstration process diagram of mathematical multiplication, as shown in fig. 8, the learner performs 5 × 3? The mathematical multiplication in (1) places 3 sets of operator bars with P ═ 5 in the first three columns of the operator panel 200 to form the multiplication 5 × 3, and observes that the operator bar with P ═ 5 in the first column of the corresponding operator panel 200 can reach the full grid 10, and as shown in fig. 9, the operator bar with P ═ 5 in the third column is moved to the first column to reach the full grid 10, and then 5 ═ 3 ═ 15 is obtained by means of a numeric method.

Specifically, other mathematical operations may also be performed by using the method for demonstration operation, which is not described in detail in this embodiment.

To sum up, the utility model provides a pair of calculation assisting tool, through setting up operator's dish and several operator's strip, and through setting up operator's strip placing hole on the operator's dish, and the shape that the operator placed the hole matches with operator's strip shape, can make children carry out mathematical operation through putting on the operator's dish, moving the mode of operator's strip; the box body with the hollow structure and the opening at one side and the operator strip placing cavity is arranged, so that the operator strips which are not used can be contained in the box body by children, and the operation and the use are convenient; by arranging the detachable operator strips which are connected end to end, the learner can flexibly use various operator strips to carry out digital operation in the operation process, the operation diversity is increased, and the mathematical operation thinking of the learner is diverged.

In addition, learners can visually observe the size of the number by arranging the operator strip placing hole separating parts, and every two operator strip placing hole separating parts comprise 100 numbers counted by 10 × 10, so that the children in the beginning stage can conveniently read through the operator panel, and errors are avoided; set up the operator strip through placing the intracavity at the operator strip and place the dish, and the operator strip is placed the dish and is got in the operator strip and put the mouth through setting up draw runner and slide rail pull, can make the user accomodate the operator strip inside the box body, and the person of facilitating the use accomodates and takes the operator strip.

Moreover, by setting the first and second operator-like strips, the learner can flexibly use the first and second operator-like strips to carry out digital operation in the operation process, so that the operation diversity is increased, and the mathematical operation thinking of the learner is diverged; through setting up to the operator strip of first sign, second sign, third sign, can increase the degree of discernment of beginner children in the use, improve children to the interest of learning digital operation.

More specifically, by arranging the first clamping part and the second clamping part, the abacus disk and the box body can be detachably connected through the first clamping part and the second clamping part, the abacus disk can be efficiently utilized, the opening of the box body can be shielded while calculation and study are carried out, and the abacus disk and the box body form a closed integral combination; by arranging the first magnetic attraction piece and the second magnetic attraction piece, the abacus and the box body are connected in a magnetic attraction manner through the first magnetic attraction piece and the second magnetic attraction piece, and a good experience effect can be brought to a user; by arranging the third magnetic attraction piece and the fourth magnetic attraction piece, the operator bar can be fixed in the operator bar placing hole through the third magnetic attraction piece and the fourth magnetic attraction piece, so that the operator bar is prevented from being easily dislocated in the use process of children and cannot be well fixed in an operator tray, and a good experience effect is brought to a user; by arranging the key lock, a user can fixedly lock the operator bar placing disc to prevent the operator bars in the operator placing cavity from sliding out; through setting up the handle, can make the user conveniently extract operator strip and place the dish.

In a word, the utility model provides a pair of help calculating instrument can solve the teaching tool in the aspect of relevant mathematical operation among the prior art, can not effectively understand the operation principle of addition subtraction and multiplication in the contrast of directly perceived image. For example, the abacus which is an auxiliary tool for manual calculation can only add or subtract partial numbers in one place for children in the beginning stage, and can not understand thinking modes such as carry, and for example, the auxiliary teaching tool which can operate by stirring beads can only carry out mathematical operation in a simple number-number mode, and can not promote the children to form a good mathematical thinking mode in the beginning stage.

The method has the advantages that the relation among the digits of the decimal number and the magnitude of the numerical value can be visually, vividly and clearly observed by using the aid of the aid, so that the arithmetic principles of addition, subtraction and multiplication can be naturally known and understood, the problem that children who learn arithmetic are not thorough in understanding the arithmetic principles and the problem that the image thinking is transited to the abstract thinking in mathematical learning can be effectively solved while the children are helped to quickly master the arithmetic principles of addition and subtraction.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A calculation aid, comprising:

the number of operators included in each operator bar is N, N is a positive integer which is greater than or equal to 1 and less than or equal to 10, and the operators included in each operator bar are detachably connected end to end;

the device comprises an operator disk, wherein a plurality of operator bar placing holes are formed in the surface of one side of the operator disk, M columns and 10 rows are formed in the operator bar placing holes, and M is larger than or equal to 10; the shape of each operator strip placing hole is matched with that of the operator strip, and the operator strip placing holes in the same row are communicated with each other;

the box body is of a hollow structure with an opening at one side and an operator strip placing cavity;

the operator disk is detachably connected with the box body, and the operator disk is arranged at the opening of the box body and used for shielding the opening.

2. The calculation aid according to claim 1, wherein an operator bar placement hole partition is provided every 10 columns of the operator bar placement holes.

3. The aid tool of claim 1, wherein the case is further provided with an operator access opening distinct from the opening.

4. The calculation aid according to claim 1, wherein a slide rail is disposed on a wall of the operator strip placing chamber, an operator strip placing disc is disposed in the operator strip placing chamber, a slide bar is disposed on the operator strip placing disc, the operator strip placing disc is slidably connected to the wall of the operator strip placing chamber through the slide rail and the slide bar, and the operator strip placing disc is drawable through the operator strip taking and placing opening.

5. A calculation aid according to any of claims 1 to 4, comprising: the operator bars comprise a first kind of operator bar and a second kind of operator bar, wherein the first kind of operator bar is an operator bar comprising one operator, the second kind of operator bar is an operator bar comprising P operators, and P is a positive integer greater than or equal to 2 and less than or equal to 10; and sixty first kind operator strips are arranged, and thirty second kind operator strips are respectively arranged.

6. The calculation aid of claim 5, wherein 20 operator bars with the first identifier, the second identifier and the third identifier are arranged in the first kind of operator bar, and 10 operator bars with the first identifier, the second identifier and the third identifier are arranged in the second kind of operator bar.

7. The calculation aid according to any one of claims 1 to 4, wherein a first engaging portion is provided on a side of the abacus disk where the sub-rack placement hole is provided, a second engaging portion that matches the first engaging portion is provided at the opening of the case, and the abacus disk and the case are detachably connected by the first engaging portion and the second engaging portion.

8. The calculation aid of any one of claims 1 to 4, wherein a first magnetic attraction piece is arranged at one side edge of the abacus disc provided with the sub-rack placement hole, a second magnetic attraction piece matched with the first magnetic attraction piece is arranged at the opening edge of the box body, and the abacus disc and the box body are magnetically connected through the first magnetic attraction piece and the second magnetic attraction piece.

9. The calculation aid according to any one of claims 1 to 4, wherein a third magnetic attraction member is disposed in the operator bar placement hole, a fourth magnetic attraction member matched with the third magnetic attraction member is disposed on one side of the operator bar, and the operator bar is fixed in the operator bar placement hole through the third magnetic attraction member and the fourth magnetic attraction member; or the edge of the operator strip placing hole is provided with a fixing part, and the operator strip is fixed in the operator strip placing hole through the fixing part.

10. The calculation aid according to claim 4, wherein a key lock for fixing the bar placing tray is arranged on the outer wall of the box body at a position close to the bar taking and placing opening, and/or a handle for extracting the bar placing tray is arranged on the bar placing tray.

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