Arithmetic training teaching aid
A technology of teaching aids and digital blocks, which is applied in the field of arithmetic training teaching aids, can solve the problems of poor teaching guidance effect, lack of flexibility and interactivity of teaching thinking training teaching aids, and achieve enhanced hands-on ability, easy identification, strong operability and interactivity Effect
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Embodiment 1
[0023] The present invention provides such Figure 1-2 The arithmetic training teaching aid shown includes a base 10 and a demonstration board 20 arranged on the base 10 .
[0024] A pair of brackets 11 are fixedly installed on the base 10, the brackets 11 are vertically arranged, and a plurality of mounting holes 12 are provided on the brackets 11, and support rods 21 are provided on both sides of the demonstration board 20 close to the brackets 11 , the mounting holes 111 are interspersed with positioning pins 13 , and the demonstration board 20 is moved up and down to be positioned through different mounting holes 12 . The height-adjustable demonstration board 20 meets the operation needs of children of different heights, and has strong practicability.
[0025] The lower end of the base 10 is equipped with a rotating wheel 30, the base 10 on the outside of the support 11 is provided with a fixed block 40, the base 10 is provided with a counterweight 50, and the fixed block...
Embodiment 2
[0029] This embodiment is mostly the same as Embodiment 1, so the same parts will not be described in detail. The difference between this embodiment and Embodiment 1 is that the number block groups 70 or character block groups 80 of each group are distributed in a circle, and are all connected by connecting rods 130. Fixedly connected on the rotating shaft 100, the end of the rotating shaft 100 away from the connecting rod 130 passes through the demonstration board 20 and is connected with a rotating handle 110, by turning the rotating handle 110 to drive the digital block group 70 or the character block group 80 to rotate, so that different digital blocks Or the character block is aligned with the groove 21 places.
[0030] Working principle of the present invention is:
[0031] First, the L-shaped connecting rod is separated from the fixed block, so that the counterweight is fixed on the ground under the action of gravity, and then the rotating handle is adjusted to combine ...
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