CN215182607U

CN215182607U - Within twenty plus or minus method cognitive teaching aid

Info

Publication number: CN215182607U
Application number: CN202121493232.7U
Authority: CN
Inventors: 特如乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-12-14
Anticipated expiration: 2031-07-01

Abstract

The utility model belongs to the technical field of teaching aid technique and specifically relates to a plus-minus method cognitive teaching aid within twenty is disclosed, including the teaching aid board, teaching aid board middle part is provided with the calculation analog region, calculation analog region one side is provided with the module save area, it is provided with plus-minus method calculation area to calculate the analog region opposite side, teaching aid board back wall four corners is fixed with four fixed feet. Has the advantages that: 1. the students can independently explore the teaching aid through the prompt of the teacher, so that the purposes of finding out the rule, mastering the arithmetic, learning and applying are realized, the problems are solved, and the dilemma of passively learning and remembering hard back of the students is changed; 2. the problems that the calculation cannot be carried out and the calculation is inaccurate when the 'carry' and 'retreat' exist in the process of calculating the addition and subtraction within twenty are solved; 3. the progress is fast, students can quickly master how to carry out carry and retreat by addition and subtraction within twenty minutes, and the learning efficiency is improved; 4. through actual operation edutainment, improve the enthusiasm degree of students to mathematics.

Description

Within twenty plus or minus method cognitive teaching aid

Technical Field

The utility model belongs to the technical field of teaching aid technique and specifically relates to a plus-minus method cognitive teaching aid within twenty.

Background

The teaching aid is a model, a real object, a specimen, an instrument, a chart, a slide show and the like for explaining something, and comprises teaching equipment, a teaching instrument, practical training equipment, education equipment, experimental equipment, a teaching specimen, a teaching model and the like.

The research results of educational psychology show that students must convert the observation and contact of specific things into the perceptual knowledge irrelevant to the specific things and then convert the perceptual knowledge into abstract and generalized rational knowledge by means of sense in the initial stage of knowledge formation. The teaching aid is used as a teaching aid for teachers, has the irreplaceable effect of other means, enables students to understand teaching contents more visually and vividly, can mobilize the learning enthusiasm of the students, improves the learning interest of the students, enriches the perceptual cognition of the students, helps the students form clear concepts, and simultaneously cultivates the observation ability and the abstract thinking ability of the students.

In the mathematical education, the reasonable use of the teaching aid is an important way for improving the quality of primary school mathematical education. The students are placed in the main positions, the processes and inducements of the thinking elicitations of the students are grasped, wide thinking space and intelligence background are created, demonstration, operation and test opportunities are provided for the students as much as possible, the multidirectional thinking ability and the reverse thinking ability of the students are cultured, and the thinking ability and the creating ability of the students are developed greatly.

In the teaching of 'twenty plus or minus method' of mathematics in first grade of primary school, "carry" and "retreat" are the key points of teaching and are the difficult points of teaching. Not only students in second grade feel difficult, even students reach third and fourth grade, the calculation speed of 'carry' and 'backspace' within twenty is slower. The traditional teaching only can learn by remembering the dead back, and the students cannot fully feel and know how to carry or retreat the addition and subtraction within twenty degrees in autonomous activities and interesting games, so that the initiative of the active learning of the students is not high, the learning method is difficult to remember, and the learning efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a within twenty plus or minus method cognition teaching aid for solving the problems.

The technical scheme of the utility model is realized like this:

the utility model provides a plus-minus method cognitive teaching aid within twenty, includes the teaching aid board, teaching aid board middle part is provided with calculates the analog region, it is provided with the module save area to calculate analog region one side, it is provided with plus-minus method calculation district to calculate the analog region opposite side, teaching aid board back wall four corners is fixed with four fixed feet, there is the supporting legs through the round pin hub fixation on the fixed foot, the module save area with equal shaping has two rows of fixed frames of mould, two rows on the addition-minus method calculation district the fixed frame of mould is internal has been placed first absorption module and second absorption module respectively, it has seven fixed slots to shape side by side in the calculation analog region, teaching aid board rear surface is located the position shaping of fixed slot both sides has fixed cassette, rotate on the fixed cassette and install 5 digital roller and two symbol rollers.

Furthermore, every row of the die fixing frame is provided with ten die fixing frames, and the colors of the die fixing frames in two adjacent rows are different.

Furthermore, an iron sheet is embedded in the center of the die fixing frame.

Furthermore, the first adsorption module comprises a color block, an inner groove is formed in the lower surface of the color block, a magnet is embedded in the inner groove, and the diameter of the magnet is smaller than that of the iron sheet.

Furthermore, the structure of the second adsorption module is the same as that of the first adsorption module, the color of the second adsorption module is different from that of the first adsorption module, and ten adsorption modules are arranged in the first adsorption module and the second adsorption module respectively.

Further, the digital roller is in a regular cross prism shape, and ten numbers of 0, 1 … … 8 and 9 are sequentially arranged on ten side walls of the digital roller.

Furthermore, the symbol roller is in a regular triangular prism shape, and three calculation symbols of + sign,' -, and ═ are sequentially arranged on three side walls of the symbol roller.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. the students can independently explore the teaching aid through the prompt of the teacher, so that the purposes of finding out the rule, mastering the arithmetic, learning and applying are realized, the problems are solved, and the dilemma of passively learning and remembering hard back of the students is changed;

2. the problems that the calculation cannot be carried out and the calculation is inaccurate when the 'carry' and 'retreat' exist in the process of calculating the addition and subtraction within twenty are solved;

3. the progress is fast, students can quickly master how to carry out carry and retreat by addition and subtraction within twenty minutes, and the learning efficiency is improved;

4. through actual operation edutainment, improve the enthusiasm degree of students to mathematics.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic diagram of an additive calculation according to the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic diagram of the subtraction calculation of the present invention;

FIG. 4 is a schematic view of a first adsorption module configuration of the present invention;

FIG. 5 is a simplified diagram of the digital roller structure of the present invention;

fig. 6 is a schematic view of the symbol roller structure of the present invention.

The reference numerals are explained below:

1. a teaching aid board; 11. a fixing leg; 12. supporting legs; 2. a module storage area; 21. a mold fixing frame; 22. iron sheets; 3. calculating a simulation area; 31. fixing grooves; 32. a digital roller; 33. a symbol roller; 34. fixing the card holder; 4. an addition and subtraction calculation area; 5. a first adsorption module; 51. color blocks; 52. a magnet; 6. and a second adsorption module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in figures 1-6, a teaching aid for learning addition and subtraction within twenty is provided, which comprises a teaching aid plate 1, a calculation simulation area 3 is arranged in the middle of the teaching aid plate 1 for simulating a calculation formula, a module storage area 2 is arranged on one side of the calculation simulation area 3, an addition and subtraction calculation area 4 is arranged on the other side of the calculation simulation area 3, four fixing feet 11 are fixed on four corners of the back wall of the teaching aid plate 1, supporting feet 12 are fixed on the fixing feet 11 through pin shafts, the supporting feet 12 can be opened, so that a gap is formed between the teaching aid plate 1 and a desktop, a digital roller 32 and a symbol roller 33 are convenient to rotate, two rows of mold fixing frames 21 are respectively formed on the module storage area 2 and the addition and subtraction calculation area 4, a first adsorption module 5 and a second adsorption module 6 are respectively arranged in the two rows of mold fixing frames 21, seven fixing grooves 31 are formed in the calculation simulation area 3 side by side, and fixing clamping seats 34 are formed at positions of the back surface of the teaching aid plate 1, which are positioned at two sides of the fixing grooves 31, the fixed clamping seat 34 is rotatably provided with 5 digital rollers 32 and two symbol rollers 33.

In this embodiment, the fixing frame 21 for each row of molds is provided with ten fixing frames 21 for each row of molds, and the colors of the fixing frames 21 for two adjacent rows of molds are different, so that the molds can be distinguished conveniently.

In this embodiment, the iron sheet 22 is embedded in the center of the mold fixing frame 21, the first adsorption module 5 includes a color block 51, an inner groove is formed on the lower surface of the color block 51, a magnet 52 is embedded in the inner groove, the diameter of the magnet 52 is smaller than that of the iron sheet 22, the color block 51 can be adsorbed and fixed in the mold fixing frame 21 when in use, and one color block 51 is fixed in each mold fixing frame 21.

In this embodiment, the structure of the second adsorption module 6 is the same as that of the first adsorption module 5, the color of the second adsorption module 6 is different from that of the first adsorption module 5, and ten adsorption modules are respectively provided for the first adsorption module 5 and the second adsorption module 6, so that the calculation and use are facilitated.

In this embodiment, the number roller 32 is a regular cross prism, ten numbers "0, 1 … … 8, 9" are sequentially arranged on ten side walls of the number roller 32, and the number roller 32 can be rotated by shifting the number roller, so that different numbers can be selected for combination.

In this embodiment, the symbol roller 33 is a regular triangular prism, three calculation symbols "+", "-" and "═ are sequentially provided on three side walls of the symbol roller 33, a desired calculation symbol can be selected by rotation, and the symbol roller 33 may be a regular quadrangular prism, a regular pentagonal prism, or the like.

The utility model discloses a theory of operation does: when in use, the four digital rollers 32 and the two symbol rollers 33 are respectively arranged at corresponding positions according to calculation addition or calculation subtraction, then the four supporting feet 12 are spread, the device is placed on a table, and the calculation of the addition or the subtraction is started under the guidance of a teacher:

if the addition operation within twenty is calculated, according to the calculation formula, for example, "5 + 9? "calculating, the first digital roller 32 is dialed to the number" 5 "upwards, the first symbol roller 33 is dialed to the number" + "upwards, the second digital roller 32 is dialed to the number" 9 "upwards, the second symbol roller 33 is dialed to the number" - "upwards, then 5 first adsorption modules 5 are taken out from the first row of the module storage area 2 and are placed on the addition and subtraction calculation area 4, then 9 second adsorption modules 6 are taken out from the second row of the module storage area 2 and are placed on the addition and subtraction calculation area 4, all the first adsorption modules 5 and the second adsorption modules 6 are placed on the addition and subtraction calculation area 4 in sequence, the first row is placed first, when the first row is full, the second row is placed, the first row has ten color blocks 51, the second row has four color blocks 51, the first row full of ten color blocks 51 in the addition and subtraction calculation area 4 can be used for the third digital roller 32 to make the number" 1 "upwards, the second row with four color blocks 51 can shift the fourth digital roller 32 to make the number "4" upward, thus completing the calculation of "5 +9 ═ 14",

if the twenty-plus subtraction is calculated, according to the calculation formula "14-5? "calculating, the first digital roller 32 is turned to the number" 1 "upwards, the second digital roller 32 is turned to the number" 4 "upwards, the first symbol roller 33 is turned to the number" - "upwards, the third digital roller 32 is turned to the number" 5 "upwards, then ten first adsorption modules 5 are placed in the first row of the addition and subtraction calculation area 4 from the module storage area 2, four second adsorption modules 6 are placed in the second row of the addition and subtraction calculation area 4 from the module storage area 2, when subtraction calculation is carried out, whether the number of the second adsorption modules 6 in the addition and subtraction calculation area 4 is larger than the number on the third symbol roller 33 is firstly calculated, when the number of the second adsorption modules 6 is larger than the number on the third symbol roller 33, the second adsorption modules 6 with the number corresponding to the subtraction number are directly taken out from the addition and subtraction calculation area 4 and placed back into the module storage area 2, calculating the number of the remaining second adsorption modules 6, when the number of the second adsorption modules 6 is smaller than the number on the third symbol roller 33, if "4 < 5", directly taking out 5 first adsorption modules 5 with the same number as the number of the subtractions from the first row in the addition and subtraction calculation area 4 and placing the first adsorption modules 5 and the second adsorption modules 6 in the module storage area 2, then rearranging the first adsorption modules 5 and the second adsorption modules 6 in the addition and subtraction calculation area 4, keeping all the first adsorption modules 5 and the second adsorption modules 6 placed in sequence, then counting the number of color blocks 51 in each row in the addition and subtraction calculation area 4, and only 9 color blocks 51 are arranged in the calculation area 4 through counting the addition and subtraction, namely, the fourth digital roller 32 can be shifted to enable the number "9" to face upwards, and then the calculation of "14-5 ═ 9" can be completed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A within twenty plus or minus method cognition teaching aid is characterized in that: the teaching aid board comprises a teaching aid board (1), wherein a calculation simulation area (3) is arranged in the middle of the teaching aid board (1), a module storage area (2) is arranged on one side of the calculation simulation area (3), an addition and subtraction calculation area (4) is arranged on the other side of the calculation simulation area (3), four fixed feet (11) are fixed on the four corners of the back wall of the teaching aid board (1), supporting legs (12) are fixed on the fixed feet (11) through pin shafts, two rows of mould fixing frames (21) are formed on the module storage area (2) and the addition and subtraction calculation area (4), two rows of first adsorption modules (5) and second adsorption modules (6) are respectively placed in the mould fixing frames (21), seven fixing grooves (31) are formed in the calculation simulation area (3) side by side, and a fixing clamping seat (34) is formed at the positions of the two sides of the fixing grooves (31) on the back surface of the teaching aid board (1), and 5 digital rollers (32) and two symbol rollers (33) are rotatably arranged on the fixed clamping seat (34).

2. The within twenty plus or minus method cognition teaching aid according to claim 1, characterized in that: every row the fixed frame of mould (21) is provided with ten the fixed frame of mould (21), two adjacent rows the colour of the fixed frame of mould (21) is different.

3. The within twenty plus or minus method cognition teaching aid according to claim 1, characterized in that: an iron sheet (22) is embedded in the center of the mold fixing frame (21).

4. The within twenty plus or minus method cognition teaching aid according to claim 3, characterized in that: the first adsorption module (5) comprises a color block (51), an inner groove is formed in the lower surface of the color block (51), a magnet (52) is embedded in the inner groove, and the diameter of the magnet (52) is smaller than that of the iron sheet (22).

5. The within twenty plus or minus method cognition teaching aid according to claim 4, characterized in that: the structure of the second adsorption module (6) is the same as that of the first adsorption module (5), the color of the second adsorption module (6) is different from that of the first adsorption module (5), and ten adsorption modules are arranged in the first adsorption module (5) and the second adsorption module (6).

6. The within twenty plus or minus method cognition teaching aid according to claim 1, characterized in that: the digital roller (32) is in a regular ten-prism shape, and ten numbers of '0, 1, … … 8, 9' are sequentially arranged on ten side walls of the digital roller (32).

7. The within twenty plus or minus method cognition teaching aid according to claim 1, characterized in that: the sign roller (33) is of a regular triangular prism type, and three calculation signs of plus sign, minus sign and plus sign are sequentially arranged on three side walls of the sign roller (33).