一、画图,理解概念内涵小学生以具体形象思维为主,数学概念对他们来说,枯燥无趣、抽象深奥,内涵更是难以清晰把握。要深刻理解数学概念的本质内涵,往往要以形辅数,借助图形直观帮助学生理解数学概念,便能取得事半功倍的教学效果。例如,教学“倍的认识”。“倍”是一个抽象的概念,学生在解答这一类问题时往往会出现错误。如果单凭教师的讲解,学生是不能够理解的。所以在教学 First, draw, understand the concept of conception of primary school students with specific image-based thinking, mathematical concepts for them, boring, abstruse, the connotation is more difficult to grasp clearly. To understand deeply the essential connotation of mathematical concepts, it is often necessary to take shape auxiliary numbers and help students understand mathematical concepts with the aid of graphical visualization so as to achieve a multiplier effect. For example, teaching “times of understanding ”. “Times ” is an abstract concept, students often will be wrong in answering this type of problem. If teachers alone explain, students can not understand. So in teaching