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初中阶段的因式分解教学主要包括提取公因式的因式分解,运用公式法的因式分解,分组分解法的因式分解和十字相乘法,是学生学习方程、函数、分式等数学知识的基础。但是在实践中,一线教师广泛反映,学生关于因式分解的学习呈现出掌握进度慢,掌握程度浅的课程。本文以皮亚杰的儿童发展阶段理论为背景,探讨因式分解的有效教学。
The teaching of factorization in junior middle school mainly includes the factorization of the common factor extraction, the factorization of the formula method, the factorization of the factorization of the group decomposition method and the cross multiplication method, which are the students’ learning equations, functions, fractional mathematics Basis of knowledge. However, in practice, front-line teachers widely reflect that the students’ learning about factorization shows a slow, low-level course of mastery. Based on Piaget’s theory of children’s development stage, this article discusses the effective teaching of factorization.