Topic Explanation: Junior High School Mathematics - Quadrilaterals

Author: Fu Rongqiang, Editor-in-Chief
Publisher:
Publish Date: 2005-06-01
Features: The series "Exam Point Decoding—Model Cracking Key and Difficult Points" is based on the "Curriculum Standards," integrates the knowledge systems of various textbook versions, and focuses on junior and senior high school curricula as well as the actual needs of the junior and senior high school exams. It is compiled by topic. The series includes a total of twenty-eight volumes covering three subjects: mathematics, physics, and chemistry for both junior and senior high schools.
A model is a concept that people are very familiar with. For example, children's toys are models of real objects, robots are models that simulate humans, and the formula for the area of a rectangle, S = ab, is a mathematical model, and so on. What are the models in this book? Simply put, they can be seen as formulas. From the perspective of middle school students' learning, establishing knowledge points into concise and scientific models (formulas) plays an important role in summarizing and memorizing knowledge points and solving problems. This series is based on the actual needs of junior and senior high school curricula and the junior and senior high school exams, formulating the knowledge of mathematics, physics, and chemistry into formulas, creating a model system centered around formulas. This system is convenient for memorization and application, making it highly valuable for cracking the key and difficult points in the knowledge system.
From life to mathematics, from life to physics, and from life to chemistry, applying knowledge to production and life, conducting exploratory learning, and solving practical problems closely related to production and life are the requirements of the "Curriculum Standards" and also the key examination content in the junior and senior high school exams. Each topic in this series is treated as a separate chapter, explaining, exemplifying, and practicing the methods and skills for using models to solve real-world problems, fully reflecting the "modeling" philosophy of the "Curriculum Standards." Leading-edge topics, modeling problem-solving—exquisite and varied!