English learning apparatus convenient for memorizing and used by pupils
Patent Information
- Authority / Receiving Office
- CN ยท China
- Current Assignee / Owner
- NAN CHANG STREET PRIMARY SCHOOL
- Publication Date
- 2017-08-25
- Estimated Expiration
- Not applicable ยท inactive patent
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Figure 1
Abstract
Description
Technical field
[0001] The invention relates to a learning device, in particular to an English learning device that is easy to remember for primary school students. Background technique
[0002] The abacus is one of the great inventions in ancient my country. The abacus is also called the plaid. The abacus is a simple calculation tool created and invented by our ancestors. The abacus originated in the Northern Song Dynasty, when the abacus was arranged in the Northern Song Dynasty. The abacus is a simple calculation tool invented and created by the working people in ancient China. China is the hometown of abacus. Nowadays, when computers are widely used, the ancient abacus has not been abandoned. On the contrary, because of its flexibility, accuracy and other advantages, it has flourished in many countries. Therefore, people often compare the invention of the abacus with the four great inventions of ancient China. In the famous painting of the Northern Song Dynasty, "A Picture ...