论文部分内容阅读
案例1学生深刻体会了一半的概念之后,教师适当小结:一半表示要把两份分的同样多,理解平均分。师:数学上要简单明了,谁能想办法用一个数来表示一半?生1:用“1”表示。生2:用二分之一表示。
Case 1 After the students have fully realized the concept of half, the teacher summed up properly: Half said that we should take as much as two points and understand the average point. Teacher: To be simple and clear math, who can think of a way to use a number that half? Health 1: “1 ” said. Students 2: one half said.