A teaching device

Abstract

The utility model discloses a teaching device, comprising an outer shell, wherein two cylindrical rotating grooves are arranged on the left and right sides of the inner part of the outer shell, a first digital rotating column, an operation symbol rotating table and a second digital rotating table are arranged in sequence in the cylindrical rotating groove on the left side, and a third digital rotating table and a fourth digital rotating table are arranged in the cylindrical rotating groove on the right side, the first digital rotating column, the operation symbol rotating table, the second digital rotating table, the third digital rotating table and the fourth digital rotating table are all arranged in the outer shell by rotating shafts, and multiple students cooperate to use the first digital rotating column, the operation symbol rotating table and the second digital rotating table to perform addition, subtraction, multiplication and division operations, thereby increasing the interactivity and interest among the students, improving the solidarity and cooperation among the students, and increasing the fun of the students in actively learning mathematics.

Description

Technical Field

[0001] The utility model relates to the technical field of mathematics teaching, in particular to a teaching device. Background Art

[0002] In enlightenment education, mathematics can effectively cultivate and improve students' logical thinking. Because of this, many parents have purchased a large number of mathematics education tools. The existing enlightenment teaching aids have a simple structure and are not rich in teaching content. They are not suitable for teaching more students at the same time. In view of the defects in the above existing technologies, it is necessary to further improve them to increase the interactivity and fun among students and improve the fun of students in actively learning mathematics. Utility Model Content

[0003] The purpose of the present invention is to provide a teaching device to solve the above problems, which has the advantages of increasing the interactivity and interest among students and improving the fun of students in actively learning mathematics, as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a teaching device, including an outer shell, wherein two cylindrical rotating grooves are provided on the left and right sides of the inner part of the outer shell, a first digital rotating column, an operation symbol rotating table and a second digital rotating table are sequentially arranged in the cylindrical rotating groove on the left side, a third digital rotating table and a fourth digital rotating table are arranged in the cylindrical rotating groove on the right side, the first digital rotating column, the operation symbol rotating table, the second digital rotating table, the third digital rotating table and the fourth digital rotating table are all rotatably arranged in the outer shell by a rotating shaft, a first through groove is provided on one side wall of the outer shell, a second through groove is provided on the other side wall of the outer shell, and an equal sign-shaped boss is provided on the outer side wall of the outer shell between the two cylindrical rotating grooves.

[0006] Preferably, a partition plate is provided between the first digital turntable, the operation symbol turntable and the second digital turntable, and a partition plate is provided between the third digital turntable and the fourth digital turntable.

[0007] Preferably, the outer sides of the first number turntable, the operation symbol turntable, the second number turntable, the third number turntable and the fourth number turntable are each provided with ten embedding grooves along the circumferential direction thereof.

[0008] Preferably, support feet are provided on both sides of the lower part of the outer shell, and the support feet are fixedly connected to the outer shell by welding.

[0009] Preferably, the first digital rotary column, the operation symbol rotary table, the second digital rotary table, the equal sign-shaped boss, the third digital rotary table and the fourth digital rotary table are respectively fitted with a cylindrical rotary groove by clearance.

[0010] Preferably, the arc center angle α (such as Figure 2 shown) is greater than or equal to 36°.

[0011] The beneficial effect is that multiple students can cooperate to use the first number turntable, the operation symbol turntable and the second number turntable to perform addition, subtraction, multiplication and division operations, thereby increasing the interactivity and fun among the students, improving the unity and cooperation among the students, and increasing the students' interest in actively learning mathematics. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a front view of the utility model;

[0014] Figure 2 This utility model Figure 1 Left view of

[0015] Figure 3 This utility model Figure 1 Rear view of.

[0016] The accompanying drawings are marked as follows: 1. outer shell; 2. supporting feet; 3. first digital turntable; 4. operation symbol turntable; 5. second digital turntable; 6. equal sign-shaped boss; 7. third digital turntable; 8. fourth digital turntable; 9. cylindrical turntable; 10. partition plate; 11. first through slot; 12. second through slot; 13. rotating shaft; 14. embedded slot. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3As shown, the utility model provides a teaching device, including an outer shell 1, two cylindrical rotating grooves 9 are provided on the left and right sides of the inner shell 1, a first digital rotating column 3, an operation symbol rotating table 4 and a second digital rotating table 5 are arranged in sequence in the cylindrical rotating groove 9 on the left side, a third digital rotating table 7 and a fourth digital rotating table 8 are arranged in the cylindrical rotating groove 9 on the right side, the first digital rotating column 3, the operation symbol rotating table 4, the second digital rotating table 5, the third digital rotating table 7 and the fourth digital rotating table 8 are all rotatably arranged in the outer shell 1 through a rotating shaft 13, a first through groove 11 is provided on one side wall of the outer shell 1, a second through groove 12 is provided on the other side wall of the outer shell 1, and an equal sign-shaped boss 6 is provided on the outer side wall of the outer shell 1 between the two cylindrical rotating grooves 9. The addition, subtraction, multiplication and division operations within the number can be realized by the first digital rotating column 3, the operation symbol rotating table 4, the second digital rotating table 5, the equal sign-shaped boss 6, the third digital rotating table 7 and the fourth digital rotating table 8 in cooperation with the equal sign-shaped boss 6.

[0019] A partition plate 10 is provided between the first number turntable 3 , the operation symbol turntable 4 and the second number turntable 5 , and a partition plate 10 is provided between the third number turntable 7 and the fourth number turntable 8 .

[0020] Ten embedding grooves 14 are provided along the circumference of the outer sides of the first number turntable 3, the operation symbol turntable 4, the second number turntable 5, the third number turntable 7 and the fourth number turntable 8. Ten numbers 0-9 are engraved or pasted in each embedding groove 14, and the operation symbols can be engraved or pasted with addition, subtraction, multiplication and division operation symbols.

[0021] Support legs 2 are arranged on both sides of the lower part of the outer shell 1 , and the support legs 2 are fixedly connected to the outer shell 1 by welding, so as to realize the support and fixation of the outer shell 1 .

[0022] The first digital rotating column 3 , the operation symbol rotating platform 4 , the second digital rotating platform 5 , the equal sign-shaped boss 6 , the third digital rotating platform 7 and the fourth digital rotating platform 8 are respectively fitted with the cylindrical rotating groove 9 by clearance.

[0023] The arc center angle α of the first through groove 11 (such as Figure 2 As shown) is greater than or equal to 36°. Preferably, the arc center angle α is 36°.

[0024] With the above structure, the first number turntable 3, the operation symbol turntable 4, the second number turntable 5, the equal sign shaped boss 6, the third number turntable 7 and the fourth number turntable 8 can be rotated through the second through slot 12 or the first through slot 11 to cooperate with the equal sign shaped boss 6 to realize addition, subtraction, multiplication and division operations within the number;

[0025] When in use, one student is selected to stand on one side of the first through slot 11, and five students are selected to stand on one side of the second through slot 12. When performing addition, subtraction, multiplication and division operations, the teacher can select one of the five students to rotate the rotating column and change the operation symbol or number, so that all the students can cooperate to complete the operation, thereby improving interactivity and fun.

[0026] The beneficial effect of the utility model is that multiple students cooperate to use the first number turntable 3, the operation symbol turntable 4 and the second number turntable 5 to perform addition, subtraction, multiplication and division operations, thereby increasing the interactivity and interest among the students, and improving the unity and cooperation among the students, and increasing the students' interest in actively learning mathematics.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A teaching device, characterized in that: The invention comprises an outer shell (1), wherein two cylindrical rotating grooves (9) are provided on the left and right sides of the inner part of the outer shell (1); a first digital rotating column (3), an operation symbol rotating table (4) and a second digital rotating table (5) are arranged in sequence in the cylindrical rotating groove (9) on the left side; a third digital rotating table (7) and a fourth digital rotating table (8) are arranged in the cylindrical rotating groove (9) on the right side; the first digital rotating column (3), the operation symbol rotating table (4), the second digital rotating table (5), the third digital rotating table (7) and the fourth digital rotating table (8) are all rotatably arranged in the outer shell (1) via a rotating shaft (13); a first through groove (11) is provided on one side wall of the outer shell (1); a second through groove (12) is provided on the other side wall of the outer shell (1); and an equal sign-shaped boss (6) is provided on the outer side wall of the outer shell (1) between the two cylindrical rotating grooves (9).

2. A teaching device according to claim 1, characterized in that: A partition plate (10) is provided between the first digital turntable (3), the operation symbol turntable (4) and the second digital turntable (5), and a partition plate (10) is provided between the third digital turntable (7) and the fourth digital turntable (8).

3. A teaching device according to claim 1, characterized in that: Ten embedding grooves (14) are provided on the outer sides of the first number turntable (3), the operation symbol turntable (4), the second number turntable (5), the third number turntable (7) and the fourth number turntable (8) along their circumferential directions.

4. A teaching device according to claim 1, characterized in that: Support legs (2) are provided on both sides of the lower part of the outer shell (1), and the support legs (2) are fixedly connected to the outer shell (1) by welding.

5. A teaching device according to claim 1, characterized in that: The first digital rotating column (3), the operation symbol rotating platform (4), the second digital rotating platform (5), the equal sign-shaped boss (6), the third digital rotating platform (7) and the fourth digital rotating platform (8) are all clearance-matched with the cylindrical rotating groove (9).

6. A teaching device according to claim 1, characterized in that: The arc center angle α of the first through groove (11) is greater than or equal to 36°.

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