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A teaching tool for multiplication oral formula education

A teaching tool and multiplication technology, applied in the field of education and teaching, can solve the problems of inflexibility and convenience, and achieve the effect of teaching convenience

Active Publication Date: 2021-11-30
申清翠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current mathematics enlightenment period and the education and teaching process in the early stage of learning, the education and teaching methods of multiplication formulas are generally carried out by writing on the blackboard or absorbable stickers printed with number symbols, and can only perform multiplication operations, which is not flexible enough convenient

Method used

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  • A teaching tool for multiplication oral formula education
  • A teaching tool for multiplication oral formula education
  • A teaching tool for multiplication oral formula education

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Embodiment

[0023] Such as Figure 1-4 As shown, a teaching tool for multiplication formula education includes a base 1, the upper end of the base 1 is provided with a support rod 2, and the support rod 2 is connected to the base 1 through an adjustment mechanism 3. Specifically, the adjustment mechanism 3 includes a The protrusion 20 at the lower end of the support rod 2 is engraved with external threads on the outer surface of the protrusion 20, and the upper end of the base 1 is provided with a thread groove 21, and the protrusion 20 and the thread groove 21 are threadedly connected;

[0024] The upper end of the support rod 2 is fixedly connected with a crossbar 4, and the crossbar 4 is rotatably connected with seven damping bearings 5, and the seven damping bearings 5 ​​are respectively fixedly connected with a first turntable 6, a second turntable 7, and a third turntable from left to right. The turntable 8, the fourth turntable 9, the fifth turntable 10, the sixth turntable 11 and ...

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Abstract

The invention belongs to the field of education and teaching, and in particular relates to an educational teaching tool for multiplication formulas. There are seven damping bearings rotatably connected to the cross bar, and the seven damping bearings are respectively fixedly connected with the first turntable, the second turntable, the third turntable, the fourth turntable, the fifth turntable, the sixth turntable and the seventh turntable from left to right. Turntables, numbers 1‑9 are engraved on the first, second, fourth, sixth and seventh reels, calculation symbols "×" and "÷" are engraved on the third reel, fifth reel The relationship symbol "=" is engraved on it, and both ends of the crossbar are fixedly connected with connecting rods, and the ends of the two connecting rods away from the crossbar are fixedly connected with the same background board. The present invention can realize the transformation function of multiplication and division teaching by adjusting the relative positional relationship between the front board and the background board.

Description

technical field [0001] The invention belongs to the field of education and teaching, and in particular relates to an educational and teaching tool for multiplication formulas. Background technique [0002] The multiplication formula is a table of formulas that is easy to remember and is used in the early stages of mathematics enlightenment and learning, and has strong practicability. In the current mathematics enlightenment period and the education and teaching process in the early stage of learning, the education and teaching methods of multiplication formulas are generally carried out by writing on the blackboard or absorbable stickers printed with number symbols, and can only perform multiplication operations, which is not flexible enough convenient. [0003] For this reason, we propose a kind of teaching tool for the multiplication oral formula education to solve the above problems. Contents of the invention [0004] The purpose of the present invention is to address...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B19/02
Inventor 申清翠李少波
Owner 申清翠