数学概念的语言精密、严谨、抽象，学生虽容易记忆，但是在理解应用时往往会出现偏差或错误。我在概念教学中，注重针对教学重点加强理解性的课堂训练，让学生主动地形成正确而牢固的认知结构。例如在教学“乘法分配律”时，学生对“两个加数分别同这个数相乘”中“分别”这个关键词 Mathematical concepts of language precision, rigorous, abstract, although students easy to remember, but in understanding the application often appear deviation or error. In concept teaching, I focus on strengthening the understanding of classroom teaching focused on teaching, so that students take the initiative to form a correct and strong cognitive structure. For example, in the teaching “multiplication assignment law ”, the students “multiplication of this two numbers ” in “” respectively "keyword