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LEARNING APPARATUS FOR UNDERSTANDING PRINCIPLE OF MULTIPLICATION
LEARNING APPARATUS FOR UNDERSTANDING PRINCIPLE OF MULTIPLICATION
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机译:理解乘法原理的学习装置
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摘要
PURPOSE: A learning apparatus for understanding the principle of multiplication is provided to help a learner to understand the principle of an addition and multiplication through an automatic result such as the number of a figure. CONSTITUTION: A figure board(201) includes figures which are arranged in a rectangular shape. A multiplication principle board(203,205) displays an add sign and a multiplication sign which are projected through the figure board of an up and down sliding board and a left and right sliding board. An answer board displays answers corresponding to the add and multiplication sign.
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