Mathematics interesting teaching device

Abstract

The utility model relates to the field of education teaching aid design, in particular to a mathematics interesting teaching device, which comprises a shell, the shell is an assembly carrier of the teaching device, and the whole shell is a square box body; the device comprises a shell and further comprises bearings, rotating shafts, gears, a connecting rod, a digital disc, a rotating handle and marks, the two bearings are symmetrically installed at the bottom of the inner wall of the shell, the number of the rotating shafts is consistent with that of the bearings, the rotating shafts are rotatably installed on the corresponding bearings, the gears are fixedly installed in the middles of shaft bodies of the rotating shafts, and the connecting rod is connected with the connecting rod. And the two gears are meshed with each other, connecting rods are fixedly installed on the top faces of the gears, and the gears are upwards supported and assembled with digital discs through the connecting rods. According to the utility model, the gear system is operated by rotating the handle to drive the number disc to rotate, addition and subtraction equation operation is visually displayed, digits on the number disc can be changed and equation establishment can be kept through operation, and the participation degree and learning interest of students are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of education teaching aid design, especially a mathematical interesting teaching device. BACKGROUND

[0002] In traditional mathematics teaching, teachers mainly rely on blackboards, textbooks and oral explanations to convey basic mathematical knowledge, such as the concept of numbers and the rules of addition. However, this method is usually lacking in interactivity and intuitiveness, especially when explaining relatively abstract concepts such as complements, students may encounter difficulties in understanding. In addition, the traditional teaching mode is usually difficult to stimulate the interest of students, especially for those who feel that the learning of mathematics is challenging or are not interested in mathematics, it is particularly important to improve their sense of participation.

[0003] Although there are various mathematical teaching aids on the current market, they are either too basic and cannot effectively support students in understanding complex mathematical principles, or are designed to be complex, inconvenient to use and expensive, which is not conducive to widespread adoption. Therefore, we propose a mathematical interesting teaching device that can not only vividly present mathematical concepts, but also is easy to operate and economical, in order to promote a more effective learning experience. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a mathematical interesting teaching device, which aims to improve the interactivity and interest of mathematics teaching.

[0005] The technical scheme is as follows: a mathematical interesting teaching device, comprising a shell, the shell is the assembly carrier of the teaching device, the shell is a square box as a whole; further comprising bearings, shafts, gears, connecting rods, digital discs, rotating handles and marks, the bearings are provided with two and symmetrically installed on the bottom of the inner wall of the shell, the number of the shafts is consistent with the number of the bearings, the shafts are rotatably installed on the corresponding bearings, the shaft bodies of the shafts are fixedly installed with gears in the middle parts, the two gears are meshed with each other, the connecting rods are fixedly installed on the top surfaces of the gears, the gears are upwardly supported with the digital discs through the connecting rods, a plurality of Arabic numerals are circumferentially arranged on the disc surfaces of the digital discs, and the number of the Arabic numerals on the digital discs is consistent with the number of the teeth of the corresponding gears, one of the shafts penetrates the top surface of the shell upwardly and is installed with a rotating handle, two groups of observation slots are symmetrically formed on the top surface of the shell, the two groups of observation slots correspond to the single Arabic numerals on the corresponding positions of the two digital discs respectively, the top surfaces of the shells at the two groups of observation slots are provided with marks, the marks are the symbols and results of addition and subtraction operations, the gears are twisted through the rotating handle, the two gears are meshed with each other to drive the corresponding digital discs to rotate, the designed numbers on the digital discs are displayed at the observation slots, the marks on the top surface of the shell are matched to directly display the addition and subtraction equation operations, the numbers on the digital discs are changed correspondingly and the addition and subtraction equation operations remain valid every time the numbers are twisted, so that the interestingness and interactivity of mathematical teaching are improved.

[0006] More preferably, a transparent observation window is arranged at each observation slot of the shell, the transparent observation window is made of hard and transparent material, the transparent observation window prevents foreign matters from entering the shell from the observation slot without affecting the normal display of the numbers on the digital discs, avoids the situation that the fingers of students are injured by the digital discs when the fingers are inserted into the observation slot, and improves the durability and safety of the teaching device.

[0007] More preferably, the outer corners of the shell are smoothly chamfered, and the shell, the rotating handle and the transparent observation window are made of non-toxic and environmentally friendly materials, so that the teaching device is both beautiful and safe.

[0008] More preferably, an installation groove is formed at the end of each tooth of the gear, a metal block is fixedly installed in each installation groove of the gear, and a magnet is inlaidly installed on the side walls of the shell, the magnet is used to cooperate with the metal blocks on the gear to enable the gear to drive the digital disc to rotate in sections and enable the numbers to align with the transparent observation window, thereby saving the operation of manually adjusting the digital disc to enable the numbers to align with the transparent observation window.

[0009] More preferably, the protective pad is also included, and the protective pad is arranged at the top corner of the outer wall of the shell, is made of soft and elastic non-toxic and environment-friendly material, and has a rounded outer surface, so as to protect the top corner of the shell which is easy to be knocked, and further improve the service life of the teaching device.

[0010] More preferably, the numbers of the number disc and the identification of the top surface of the shell are replaceable, so that the teaching device can be re-designed and re-typeset according to actual teaching needs, and the range of knowledge that can be taught by the teaching device is expanded.

[0011] The teaching device has the following beneficial effects:

[0012] 1. The rotating handle operates the gear system to drive the number disc to rotate, so that the addition and subtraction equation operation can be intuitively displayed, the numbers on the number disc can be changed and the equation can be kept, and the participation and learning interest of students are improved.

[0013] 2. The metal block on the gear and the magnet embedded in the shell interact with each other, so that the number disc is rotated in paragraphs and automatically aligned, the need for manual adjustment is reduced, and the operation is convenient and fast.

[0014] 3. The observation window made of hard and transparent material does not affect the number display and prevents foreign matters from entering or fingers from being pinched, so that the safe use of the device is ensured, the elastic protective pad is installed at the top corner of the shell to protect the vulnerable part from being knocked, and the service life of the teaching device is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic view of the teaching device.

[0016] Figure 2 It is a schematic view of the cooperation relationship of the bearing, the rotating shaft, the gear, the connecting rod and the number disc.

[0017] Figure 3 It is a connection relationship diagram of the gear, the connecting rod, the number disc and the rotating handle.

[0018] Figure 4 It is a three-dimensional structural schematic view of the gear, the mounting groove and the metal block.

[0019] The marks of the components in the drawings are as follows: 1, shell, 101, observation slot, 2, bearing, 3, rotating shaft, 4, gear, 5, connecting rod, 6, number disc, 7, rotating handle, 8, identification, 11, mounting groove, 12, metal block, 13, magnet, 14, protective pad, 15, transparent observation window. DETAILED DESCRIPTION

[0020] For the purpose, technical scheme and advantages of the utility model to be clearer, the utility model will be described in further detail below in conjunction with the drawings. Only this declaration, the up, down, left, right, front, back, inside, outside and other orientation words appearing in the text or about to appear of the utility model, only take the drawings of the utility model as the benchmark, it is not the specific limitation of the utility model.

[0021] A kind of mathematical interesting teaching device, as shown in Figures 1-4 It includes shell 1, shell 1 is the assembly carrier of the present teaching device, shell 1 is the overall square box;It also includes bearing 2, shaft 3, gear 4, connecting rod 5, digital disc 6, rotating handle 7 and mark 8, bearing 2 is equipped with two and symmetrically installed in the bottom of the inner wall of shell 1, the number of shaft 3 and bearing 2 is consistent, shaft 3 is rotatably installed on the corresponding bearing 2, the shaft body middle part of shaft 3 is fixedly installed with gear 4, two gears 4 are engaged with each other, gear 4 top surface is fixedly installed with connecting rod 5, gear 4 is supported by connecting rod 5 and is assembled with digital disc 6 upwards, the disc surface of digital disc 6 is circumferentially provided with a plurality of continuously arranged arabic numerals, and the number of arabic numerals on digital disc 6 is consistent with the number of teeth of corresponding gear 4, one of shaft 3 penetrates the top surface of shell 1 upwards and is installed with rotating handle 7, the top surface of shell 1 is symmetrically provided with two groups of observation slot 101 on the front and back sides, two observation slot 101 respectively correspond to the single arabic numeral on the corresponding position of two digital discs 6, the shell top surface of shell 1 at two groups of observation slot 101 is provided with mark 8, mark 8 is the symbol and result of addition and subtraction operation, gear 4 is twisted by rotating handle 7, two gears 4 are engaged with each other and drive corresponding digital disc 6 to rotate, the designed numbers on digital disc 6 are displayed at observation slot 101, and the mark 8 on the top surface of shell 1 is combined to directly show the addition and subtraction equation operation, each time of twisting can make the numbers on digital disc 6 correspondingly change and make the addition and subtraction equation operation still hold, so as to improve the interestingness and interactivity of mathematical teaching.

[0022] As shown in Figure 1 And Figure 2 The transparent observation window 15 is made of hard and transparent material, which prevents foreign matter from entering the shell 1 from the observation slot 101 without affecting the normal display of numbers on the digital disc 6, avoids the situation that students' fingers are injured by the digital disc 6 when stretching into the observation slot 101, and improves the durability and safety of the teaching device;The outer corners of shell 1 are smoothly chamfered, and the components such as shell 1, rotating handle 7 and transparent observation window 15 are made of non-toxic and environmentally friendly materials, so that the teaching device considers both aesthetics and safety.

[0023] As shown in Figure 3 And Figure 4As shown, the end of each tooth of the gear 4 is provided with a mounting groove 11, and a metal block 12 is fixedly installed in each mounting groove 11 of the gear 4. A magnet 13 is inlaidly installed on the two side walls of the shell 1, and the magnet 13 is used to cooperate with the metal block 12 on the gear 4 to be adsorbed, so that the gear 4 can drive the digital disc 6 to rotate in sections and make the numbers align with the transparent observation window 15, thereby saving the operation of manually fine-tuning the digital disc 6 to make the numbers align with the transparent observation window 15.

[0024] As shown in Figure 1 , a protective pad 14 is further included, and the protective pad 14 is provided at the top corners of the outer wall of the shell 1. The protective pad 14 is made of soft and elastic non-toxic and environmentally friendly materials, and the outer surface of the protective pad 14 is designed to be round. The protective pad 14 is used to protect the top corners of the shell 1 which are prone to be bumped, thereby further improving the service life of the teaching device.

[0025] As shown in Figure 1 and Figure 3 , the numbers of the digital disc 6 and the identification 8 on the top surface of the shell 1 are designed to be replaceable. The numbers and the identification 8 can be redesigned and typeset according to actual teaching needs, thereby expanding the range of knowledge that can be taught by the teaching device.

[0026] When the teaching device is used to demonstrate addition and subtraction operations, the rotating handle 7 directly drives a rotating shaft 3 to rotate. The gear 4 on the rotating shaft 3 rotates and meshes to drive another gear 4 and the rotating shaft 3 to rotate. Thus, when the gear 4 rotates, the gear 4 drives the respective digital disc 6 to rotate. The digital disc 6 is marked with consecutive Arabic numerals, and the number of digits matches the number of teeth of the gear 4, thereby ensuring that each rotation can accurately display new numbers. Through the two observation slots 101 on the top surface of the shell 1, corresponding to specific positions on the two digital discs 6, and the transparent observation window 15 is installed at the two slots, the number change on the digital disc 6 can be clearly seen, while preventing external foreign objects from entering or fingers from being inserted to cause injury. Until the desired number appears in the observation window, at this time, the identification 8 (such as plus sign, minus sign and equal sign) on the top of the shell 1 will form a complete equation together with the numbers seen through the observation window. Whenever the rotating handle 7 is further twisted, the numbers on the digital disc 6 will be updated, but the addition and subtraction equation formed will still hold true. This provides students with a dynamic and intuitive learning experience. When the gear 4 rotates, the metal block 12 will be attracted by the magnet 13, thereby making the gear 4 and the digital disc 6 rotate in sections, i.e. each rotation will automatically position to the next correct number position without the need for additional manual fine-tuning. This makes the numbers accurately stop at the correct position and align with the transparent observation window 15. Considering safety and durability, the corners of the shell 1 of the teaching device are rounded, and soft protective pads 14 are added at the top corners of the shell 1 to protect the teaching device from being damaged by bumps.

[0027] The above merely is preferred implementation manner of the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the principle of the present application, can also make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the present application.

Claims

1. A mathematical interest teaching device, comprising a shell (1), the shell (1) is a square box as a whole; characterized in that, It also includes bearings (2), shafts (3), gears (4), connecting rods (5), a digital disk (6), a rotating handle (7), and a marker (8). Two bearings (2) are symmetrically installed on the bottom of the inner wall of the outer casing (1). The number of shafts (3) is the same as the number of bearings (2). Each shaft (3) is rotatably mounted on a corresponding bearing (2). Gears (4) are fixedly installed in the middle of the shaft of each shaft (3), and the two gears (4) mesh with each other. Connecting rods (5) are fixedly installed on the top surface of each gear (4). The digital disk (6) is mounted upwards on each gear (4) via the connecting rods (5). The disks of the 6) are arranged with a number of consecutive Arabic numerals in a circumferential manner. The number of Arabic numerals on the disks (6) is the same as the number of teeth of the corresponding gears (4). One of the rotating shafts (3) extends upward through the top surface of the outer shell (1) and is equipped with a rotating handle (7). The top front and rear sides of the outer shell (1) are symmetrically provided with two sets of observation slots (101). The two observation slots (101) correspond to the single Arabic numerals at the corresponding positions on the two disks (6). The top surface of the outer shell (1) at the two sets of observation slots (101) is provided with a mark (8). The mark (8) is the symbol and result of addition and subtraction operations.

2. The mathematical interest teaching device according to claim 1, wherein Each observation slot (101) of the outer casing (1) is provided with a transparent observation window (15), which is made of a hard and transparent material.

3. The mathematical interest teaching device according to claim 2, wherein The outer corners of the outer shell (1) are all rounded, and the outer shell (1), rotating handle (7) and transparent observation window (15) are all made of non-toxic and environmentally friendly materials.

4. The mathematical interest teaching device according to claim 3, wherein Each tooth of the gear (4) has an installation groove (11) at its end. A metal block (12) is fixedly installed in each installation groove (11) of the gear (4). Magnets (13) are embedded in the two side walls of the outer shell (1).

5. The mathematical interest teaching device according to claim 4, wherein It also includes a protective pad (14), and a protective pad (14) is provided at the top corner of the outer wall of the outer shell (1). The protective pad (14) is made of soft and elastic non-toxic and environmentally friendly material, and the outer surface of the protective pad (14) is rounded.

6. The mathematical interest teaching device according to claim 5, wherein The numbers on the digital disk (6) and the markings (8) on the top surface of the casing (1) are all replaceable and can be redesigned and re-arranged according to actual teaching needs.

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