Teaching Children Simple Abacus (3 results)

paperback. Condition: New. Language:Chinese.Pages Number: 163 Publisher: Hefei University Press Pub. Date :2009-03. This material has the following characteristics: (1) science textbook is based on children's understanding of the law and the existing primary school mathematics curriculum standards to write. on the beads mental arithmetic of scientific principles. calculation processing algorithms. skills. techniques have made a simple and clear exposition. (2) systematic follow the textbook Deep. from easy to difficult.…

paperback. Condition: New. Paperback. Pub Date: 2017-02-01 Pages: 125 Language: Chinese Publisher: Hefei University Press abacus. abacus is a type of short mental arithmetic. also known as Pearl brain speed calculation. it is the digital counting beads become symbols come human mind. and a style of computing abacus arithmetic operations based on the principle that it is not only fast computing capabilities .…

paperback. Condition: New. Paperback. Pub Date: 2017-02-01 Pages: 165 Language: Chinese Publisher: press with abacus. hefei university of technology is short for the abacus mental calculation type. also called brain fast. it is the number a calculate bead symbol emerged in the human mind. and according to the principle of the abacus arithmetic for addition. subtraction. multiplication. and division of a way of calculation. it not only has fast computing function.…