在人教版《数学》教科书第十一册“比的基本性质”的教学中,学生首先要明确最简单整数比的概念,并合理地运用它。下面是两位教师引导学生理解“最简单整数比”的教学片断。片断一教师出示最简单整数比的定义:比的前项和后项是整数的且为互质数的比,叫做最简单整数比。师:同学们 In the PEP Teaching Volume 11 of the PEP Edition, “The Basic Character of Ratio”, students first need to clarify the concept of the simplest integer ratio and use it rationally. The following are two teachers to guide students to understand the “simplest integer ratio” of teaching pieces. Piece-teacher to produce the simplest definition of the ratio of the whole: the ratio of the former and the latter is an integer and is a prime than the ratio, called the simplest integer ratio. Teacher: classmates