Primary School Extracurricular Activities Heaven Fun Math 3

Author: Ma Longtao
Publisher:
Publish Date: 2000-03-01
Features: This book, inspired by the spirit of "learning through play," aligns with current reforms in elementary school classroom teaching. It designs 20 challenging mathematical activities and problems covering various fields such as algebra, geometry, and series, based on the new level of children's physical and mental development. This book is suitable for fourth and fifth-grade students in five-year or six-year elementary school systems. Regarding algebra problems, it emphasizes the concepts and ideas of variables and functions; for geometry problems, it highlights the methods of dissection and area conservation; for series problems, it emphasizes the transformation between "finite" and "infinite"; and for solid geometry, it focuses on the idea of converting three-dimensional objects into two-dimensional plane representations.
Advantages of the Book: While emphasizing the cultivation of students' basic skills, methods, and hands-on abilities, the book gradually increases the difficulty of problems in a systematic and layered manner. For solid geometry, the research methods include: first, creating three-dimensional models; second, studying the lateral and full unfoldings of three-dimensional figures; third, drawing cross-sections and profiles of geometric bodies. For these fundamental mathematical concepts and methods, readers should pay full attention and grasp them comprehensively. The goal is to help readers develop a "holistic" perspective, enabling them to master the book with a broad overview. As for drawing rectangular prisms, it is essentially creating a perspective drawing that seeks simplicity and a sense of three-dimensionality, and it cannot fully replace physical models.
Around the three heights and six faces of a rectangle, the book provides some interesting problems designed to cultivate readers' deductive reasoning skills. This is a rare opportunity and should not be missed.