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Teaching tool used together with multiplication table

A technology of formulas and teaching aids, applied in the field of teaching aids used in conjunction with multiplication formulas, can solve problems such as easy to forget, difficult to understand and learn multiplication formulas, and achieve the effect of promoting interest and scientific design

Inactive Publication Date: 2018-06-08
李荣光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When children are beginning to learn mathematics, they start with addition, subtraction, multiplication, and division. At the same time, they need to learn formulas to facilitate calculations. Because children have a playful nature, when learning to memorize formulas, they will find it monotonous and difficult to learn, especially multiplication formulas. Numbers are abstract and difficult to understand, difficult to learn and easy to forget

Method used

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  • Teaching tool used together with multiplication table
  • Teaching tool used together with multiplication table

Examples

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Embodiment Construction

[0009] figure 1 , 2 As shown: the teaching aid used in conjunction with the multiplication formula, a square turntable 2 and a circular turntable 3 are movable and fixed on both sides of a base plate 1 with a handle 7 through a pin shaft 4 in the middle, and several through holes 5 are distributed on both sides of the turntable. Each of the several through holes 5 can correspond to the number layer 6 marked on the bottom plate 1, and the number layers 6 are distributed on the turntables on both sides.

[0010] The use principle of the present invention is:

[0011] The single digit (mantissa) of the product obtained by multiplying the number in the marked frame and the number in the upper plate all falls in the frame of the corresponding through hole 5, such as odd numbers 1, 3, 7, 9 (5 in addition) use :exist figure 2 The number 3 is framed by the marked frame in the through hole 5 of the square turntable 2, which can be memorized in order, or can be multiplied by any num...

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Abstract

The invention provides a teaching tool used together with the multiplication table. A square turntable and a round turntable are movably fixed to the two sides of a bottom plate with a handle througha middle pin shaft. Multiple through holes are distributed on the turntables on the two sides. Each of the through holes can correspond to a digit layer marked on the bottom plate. Digit layers are distributed on the turntables on the two sides. During use of the teaching tool, through the rotation of the turntables, the ones digit (tail digit) of the accurate answer can be found on the turntablesafter multiplication of corresponding data. The teaching tool can increase the interest of children in learning as with toys.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a teaching aid used in conjunction with multiplication formulas. Background technique [0002] When children are beginning to learn mathematics, they start with addition, subtraction, multiplication, and division. At the same time, they need to learn formulas to facilitate calculations. Because children have a playful nature, when learning to memorize formulas, they will find it monotonous and difficult to learn, especially multiplication formulas. Numbers are abstract and difficult to understand, difficult to learn and easy to forget. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned existing problems, and provide a teaching aid used in conjunction with multiplication formulas, which can be used in conjunction with the learning of multiplication formulas, so that children can increase their interest in learning and promote the learning pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B1/22G09B19/02
CPCG09B1/22G09B19/02
Inventor 李荣光
Owner 李荣光
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