CN111653158A - Arithmetic rule demonstration tool - Google Patents
Arithmetic rule demonstration tool Download PDFInfo
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- CN111653158A CN111653158A CN202010594723.4A CN202010594723A CN111653158A CN 111653158 A CN111653158 A CN 111653158A CN 202010594723 A CN202010594723 A CN 202010594723A CN 111653158 A CN111653158 A CN 111653158A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/02—Counting; Calculating
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Abstract
The invention relates to an arithmetic operation rule demonstration tool, which structurally comprises a base plate, a demonstration bar and a demonstration object, wherein the three parts are detachable; the base plate can be regularly provided with 10 demonstration bars at most; each demonstration bar has 10 holes and can hold 10 demonstrations at most. The demonstration bar contains at most 10 designs of demonstrations for demonstrating decimal rules; the base plate and the demonstration bar can be separated, and addition and subtraction of tens digits in operation can be demonstrated; the demonstration bar and the demonstration object can be separated, and the addition and subtraction of single digits in operation can be demonstrated. The invention is based on the cognitive level of children, takes decimal concepts and rules as the basis, cultivates the number recognition and operation abilities of the children, more intuitively helps the children to establish correct number and arithmetic concepts, and can cultivate the exploration spirit of the children in the process of starting up and summarizing the rules.
Description
Technical Field
The invention relates to the technical field of children education tools, in particular to an arithmetic rule demonstration tool.
Background
The four arithmetic operations of number identification and addition, subtraction, multiplication and division occupy important positions in the education of children and children. It is not easy to establish the correct number and concepts of addition, subtraction, multiplication and division, limited by the cognitive level of the young children and children. At present, the teaching children learn numbers, mostly adopt the form of a number finger, a number small rod, an abacus, and the like; teaching children's operation stage, mostly adopt and infuse skills such as "gather ten methods", its main problem lies in:
(1) number bar
Its "decimal" concept is not intuitive. The small stick has no clear decimal concept, and meanwhile, special relations of 1 and 9, 2 and 8, 3 and 7, 4 and 6, 5 and 5 under the decimal system cannot be found visually by the small stick.
(2) Abacus frame
Its "operation rule" is not intuitive. The demonstration bar and the base plate of the abacus frame cannot be separated, and the demonstration of plus or minus of the ten-phase is not visual; the demonstration object and the demonstration bar cannot be separated, and the demonstration phase is not visual when added or subtracted.
(3) Counting finger
The finger has a decimal concept and a relatively intuitive operation rule concept. However, each person only has 10 fingers, and the addition and subtraction within 20 can be calculated by using the fingers and the feet together. When it exceeds 20, the appearance is not intuitive.
(4) Abacus
Abacus is a good computing tool, but is not suitable as a child learning arithmetic concept.
When the tool is used, children are difficult to master the meaning of 'ten' in the decimal system, and are difficult to understand the skill in the subsequent operation; the method is not vivid and is not beneficial to children to master the four concepts, and meanwhile, the method for directly informing the conclusion is not beneficial to the cultivation of the scientific spirit of the children. Therefore, a tool which is convenient for children to understand the decimal concept and can conveniently identify numbers and carry out addition, subtraction, multiplication and division four arithmetic operations is lacked.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an arithmetic operation rule demonstration tool which is in line with decimal rules, is detachable, can visualize the number recognition and operation rules under abstract decimal and is used for solving the difficulty existing in the number recognition and operation processes of children.
In order to achieve the purpose, the invention adopts the technical scheme that:
an arithmetic operation rule demonstration tool comprises a base plate, a demonstration bar and a demonstration object, wherein the base plate is detachably connected with the demonstration bar, and the demonstration bar is detachably connected with the demonstration object; the base plate is regularly provided with 10 demonstration bars at most; each demonstration bar is regularly provided with 10 demonstrations at most.
The shape of the demonstration object is a sphere, a cube, a cuboid or an ellipsoid.
The base plate is of a square frame structure, ten groups of grooves are formed in a group of frames corresponding to the base plate respectively, clamping heads matched with the grooves of the base plate are arranged at two ends of the demonstration strip, and the demonstration strip clamping heads are connected with the grooves of the base plate.
Dops at two ends of the demonstration strip are longer than the grooves of the base plate, so that the demonstration strip can be conveniently taken and placed.
The demonstration strip is evenly provided with ten holes, the demonstration objects are placed in the holes of the demonstration strip, the size of the demonstration objects is larger than that of the holes of the demonstration strip, and the demonstration objects can be conveniently taken and placed.
The demonstration strip is spliced with the demonstration object through the convex-concave connecting structure.
The demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.
The base plate is provided with a cover, so that the demonstration tool can be conveniently arranged.
The base plate is a cuboid base, ten groups of grooves are formed in the upper surface of the base, and clamping heads are arranged at two ends of the demonstration strip and are matched with the insertion grooves of the base; the demonstration strip is inserted into the base through the groove, the demonstration object is of a hollow structure, the hollow section of the demonstration object is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.
The base plate is a vertical base with a frame structure, and ten groups of inserting grooves are uniformly formed in the lower surface of the upper frame of the base plate; two ends of the demonstration strip are provided with clamping heads which are matched with the inserting grooves of the vertical base, and the clamping heads of the demonstration strip are vertically inserted into the inserting grooves of the vertical base; the demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.
The invention has simple structure and exquisite design, and is very in line with the rules of human invention of decimal numbers. By the design of the demonstration bar and the demonstration object, the decimal rule can be intuitively demonstrated; the base plate and the demonstration bar can be separated, and addition and subtraction of tens digits in operation can be demonstrated; the demonstration bar and the demonstration object can be separated, the addition and subtraction of single digits in operation can be demonstrated, and the correct quantity and operation concept can be effectively helped to be established by children.
Drawings
Fig. 1 is a schematic structural diagram of an arithmetic rule demonstration tool.
Fig. 2 is a schematic structural view of embodiment 2.
Fig. 3 is a schematic structural view of embodiment 3.
Fig. 4 is a schematic structural view of embodiment 4.
FIG. 5 is a schematic structural view of example 5.
Fig. 6 is a schematic structural view of embodiment 6.
FIG. 7 is a schematic structural view of example 7.
In the figure: 1. a base plate; 2. a demonstration bar; 3. a demonstration object; 4. a groove; 5. clamping a head; 6. a hole; 7. a protrusion; 8. recessing; 9. the projection of the demonstration object; 10. a dimple hole; 11. a base; 12. concave holes; 13. a vertical base; 14. and (4) inserting the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, an arithmetic demonstration tool includes a base plate 1, a demonstration bar 2 and a demonstration object 3;
the left side and the right side of the base plate 1 are provided with ten corresponding groups of V-shaped grooves 4;
ten demonstration strips 2 are arranged and are in strip shapes, the left end and the right end of each demonstration strip are triangular clamping heads 5 which are matched with the grooves 4 of the base plate, ten holes 6 are uniformly formed in the middle of each demonstration strip 2, and the ten demonstration strips 2 are uniformly arranged in the base plate 1;
the demonstration objects 3 are placed in the holes 6 of the demonstration bar 2, and the total number of the demonstration objects 3 is one hundred.
The length that dop 5 at demonstration strip 2 both ends are grown out the recess 4 of base plate 1 both sides is 2.00cm, is convenient for demonstrate the strip and is got and put.
The size of the spherical demonstration object 3 is slightly larger than that of the hole 6 of the demonstration bar 2, so that the demonstration object can be conveniently taken and placed.
The arithmetic demonstration tool is also provided with a cover matched with the base plate in size, so that the arrangement is convenient.
Instructions for use
At most ten demo objects are placed in one demo bar, when nine demo objects are placed, a hole can be found, and the special relation between nine objects and one object in decimal can be found visually; similarly, relationships between two and eight, between three and seven, between four and six, and between five and five can be easily found.
The demonstration bar can hold ten demonstrations, and more than ten demonstration bars must be added to explain 'full decimal one'; when the number of the demo bars is not enough, the demo bars with ten demos can be used for explaining 'borrow one and ten'.
(2) "operation rule"
1) Identifying:
for example twenty-six, represented by two demonstration bars, six demonstrations, the meaning of two and six of twenty-six is relatively intuitively understood. For example, comparing twenty-six to thirty-six, it can be appreciated that thirty-six is one more bar than twenty-six.
2) Addition
For example, thirty-seven plus twenty-nine, thirty-seven are represented by three demonstration bars, seven demonstrations, twenty-nine are represented by two demonstration bars, nine demonstrations, the three demonstration bars and the two demonstration bars are added to form five demonstration bars, the seven demonstration bars and the three demonstrations are filled in one demonstration bar, six demonstrations are formed, and the rest are sixty-six demonstrations.
3) Subtraction method
Thirty-five minus seventeen, thirty-five are represented by three demonstration bars and five demonstration objects, wherein one demonstration bar is taken out first, twenty-five are remained, five demonstration objects are taken out, two demonstration objects are taken out, one demonstration bar and eight demonstration objects are remained, and the result is eighteen.
4) Multiplication
Four times eight, expressed as: four bars are used, and eight demonstrations are placed on each demonstration bar. The results were: the bars are filled in turn, i.e. three demonstration bars, two demos, the result is thirty-two.
5) Division method
Thirty-two divided by eight. Thirty-two is represented as three demonstration bars, two demonstration objects, a plurality of demonstration bars are found, each bar is provided with eight demonstration objects, and four demonstration bars can be arranged, namely thirty-two is divided by eight to be equal to four.
6) Remainder
Thirty-five divided by eight and so on. Thirty-five are three demonstration bars and five demonstration objects, a plurality of demonstration bars are found, each demonstration bar is provided with eight demonstration objects, four demonstration bars can be arranged, and three demonstration objects are remained, namely thirty-five is divided by eight and the like, namely four and three.
Example 2
Referring to fig. 2, an arithmetic demonstration tool includes a base plate 1, a demonstration bar 2 and a demonstration object 3;
it differs from example 1 in that:
the left side and the right side of the base plate 1 are provided with corresponding ten groups of grooves 4;
ten demonstration strips 2 are arranged and are in a square strip shape, and the left end and the right end of each demonstration strip are provided with square clamping heads 5 which are matched with the grooves of the base plate;
the demonstration object 3 is a hollow square, the size of the hollow section of the demonstration object is matched with that of the vertical section of the demonstration strip, and the demonstration object 3 is sleeved on the demonstration strip 2.
Example 3
Referring to fig. 3, an arithmetic demonstration tool includes three parts, namely a base plate 1, a demonstration bar 2 and a demonstration object 3;
it differs from example 1 in that:
ten demonstration strips 2 are arranged and are in a square strip shape, the left end and the right end of each demonstration strip are provided with square clamping heads 5 matched with the grooves of the base plate, and ten bulges 7 are arranged on the upper surfaces of the demonstration strips 2;
the demonstration object 3 is a hollow square, the size of the hollow square is matched with the bulge 7 of the demonstration strip 2, and the demonstration object 3 is sleeved on the bulge 7 of the demonstration strip 2 through a concave-convex connecting structure.
Example 4
Referring to fig. 4, an arithmetic demonstration tool includes three parts, namely a base plate 1, a demonstration bar 2 and a demonstration object 3;
it differs from example 3 in that:
ten depressions 8 are uniformly formed in the upper surface of the demonstration bar 2;
the bottom of the demonstration object 3 is provided with a demonstration object bulge 9 matched with the size of a recess 8 arranged on the demonstration bar 2, and the demonstration object 3 is inserted into the demonstration bar 2 through a concave-convex connecting structure.
Example 5
Referring to fig. 5, the difference from embodiment 1 is:
the left end and the right end of the demonstration bar 2 are provided with square clamping heads 5 which are matched with the grooves of the basal disc, and ten concave holes 10 are uniformly formed in the square clamping heads;
the demonstration object 3 is in an oval sphere shape, the size of the demonstration object is slightly larger than that of the circular recess 10, and the demonstration object 3 is placed in the recess hole 10 of the demonstration bar 2.
Example 6
Referring to fig. 6, an arithmetic demonstration tool includes three parts, namely a base plate 1, a demonstration bar 2 and a demonstration object 3; the basal disc 1 is a cuboid base 11;
the upper surface of the base 11 is provided with ten groups of concave holes 12, and two ends of the demonstration strip 2 are provided with clamping heads 5 which are matched with the concave holes 12 of the base 11; the demonstration strip 2 is inserted into the base 11 through the concave hole 12, the demonstration object 3 is of a hollow structure, the hollow section of the demonstration object is matched with the cross section of the demonstration strip 2, and the demonstration strip 2 penetrates into the demonstration object 3;
the demonstration strip 2 is provided with ten strip-shaped demonstration strips, the upper end and the lower end of each demonstration strip are provided with clamping heads 5 which are matched with the concave holes 12 of the base 11, and the demonstration strips are vertically inserted into the base 11;
the demonstration object 3 is a hollow square, the size of the hollow square is matched with the size of the cross section of the demonstration strip, and the demonstration object 3 is sleeved on the demonstration strip 2.
Example 7
Referring to fig. 7, an arithmetic demonstration tool includes three parts, namely a base plate 1, a demonstration bar 2 and a demonstration object 3; the basal disc 1 is a vertical base 13;
the vertical base 13 is of a frame structure, and ten groups of insertion grooves 14 are uniformly formed in the lower surface of the upper frame of the vertical base;
the demonstration bar 2 is provided with ten bar-shaped demonstration bars, the upper end and the lower end of each demonstration bar are provided with clamping heads 5 which are matched with the inserting grooves 14 of the vertical base 13, and the demonstrating bars are vertically suspended and inserted into the inserting grooves 14 on the upper part of the vertical base 11;
the demonstration object 3 is in a square hollow shape, the size of the hollow is matched with the size of the cross section of the demonstration strip, and the demonstration object 3 is sleeved on the demonstration strip 2.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An arithmetic operation rule demonstration tool, characterized by: the demonstration device comprises a base plate, a demonstration strip and a demonstration object, wherein the base plate is detachably connected with the demonstration strip and the demonstration strip is detachably connected with the demonstration object; the base plate is regularly provided with 10 demonstration bars at most; each demonstration bar is regularly provided with 10 demonstrations at most.
2. The arithmetic operation rule presentation tool of claim 1, wherein: the shape of the demonstration object is a sphere, a cube, a cuboid or an ellipsoid.
3. The arithmetic operation rule presentation tool of claim 2, wherein: the base plate is of a square frame structure, ten groups of grooves are formed in a group of frames corresponding to the base plate respectively, clamping heads matched with the grooves of the base plate are arranged at two ends of the demonstration strip, and the demonstration strip clamping heads are connected with the grooves of the base plate.
4. The arithmetic operation rule presentation tool of claim 3, wherein: the dop at demonstration strip both ends is stretched out in the basal disc recess.
5. The arithmetic operation rule presentation tool of claim 4, wherein: ten holes are uniformly formed in the demonstration strip, the demonstration objects are placed in the holes of the demonstration strip, and the size of each demonstration object is larger than that of each hole of the demonstration strip.
6. The arithmetic operation rule presentation tool of claim 4, wherein: the demonstration strip is spliced with the demonstration object through the convex-concave connecting structure.
7. The arithmetic operation rule presentation tool of claim 4, wherein: the demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.
8. The arithmetic operation rule presentation tool of claim 2, wherein: the base plate is a cuboid base, ten groups of grooves are formed in the upper surface of the base, and clamping heads are arranged at two ends of the demonstration strip and are matched with the insertion grooves of the base; the demonstration strip is inserted into the base through the groove, the demonstration object is of a hollow structure, the hollow section of the demonstration object is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.
9. The arithmetic operation rule presentation tool of claim 2, wherein: the base plate is a vertical base with a frame structure, and ten groups of inserting grooves are uniformly formed in the lower surface of the upper frame of the base plate; two ends of the demonstration strip are provided with clamping heads which are matched with the inserting grooves of the vertical base, and the clamping heads of the demonstration strip are vertically inserted into the inserting grooves of the vertical base; the demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910782164.7A CN110782747A (en) | 2019-08-18 | 2019-08-18 | Arithmetic rule demonstration tool |
| CN201921386591 | 2019-08-18 | ||
| CN2019213865915 | 2019-08-18 | ||
| CN2019107821647 | 2019-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111653158A true CN111653158A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010594723.4A Pending CN111653158A (en) | 2019-08-18 | 2020-06-28 | Arithmetic rule demonstration tool |
| CN202021207568.8U Active CN212847305U (en) | 2019-08-18 | 2020-06-28 | Arithmetic rule demonstration tool |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021207568.8U Active CN212847305U (en) | 2019-08-18 | 2020-06-28 | Arithmetic rule demonstration tool |
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| CN (2) | CN111653158A (en) |
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2020
- 2020-06-28 CN CN202010594723.4A patent/CN111653158A/en active Pending
- 2020-06-28 CN CN202021207568.8U patent/CN212847305U/en active Active
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| CN212847305U (en) | 2021-03-30 |
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