Solving Middle School Math Difficulties Skillfully

Author: Wang Yongjian
Publisher:
Publish Date: 2003-04-01
Features: This book elaborates on 12 topics, including the development of number systems, inverse functions, induced formulas, proof by contradiction, inverse propositions, adding auxiliary lines, planes, problems of unfolding and folding, discussions on the existence of geometric figures, applied problems, and caution against errors.