【背景缘起】去年市里组织了教坛新秀评比,笔者作为“课堂教学”的评委,全程参与。其中《小数的初步认识》有5位老师在同一天上。因为参赛老师对教材解读不同,引入起点不一(有的从价格引入,有的从童话引入,有的直接揭题让学生围绕课题提问等),探究环节不同,因此,动 Background origin】 【Last year, the city organized the Forum rookie competitions, the author as “classroom teaching ” judges, full participation. Among them, five teachers are on the same day of “primary recognition of decimals.” Because the participating teachers interpret the teaching materials differently, the introduction of different starting points (some from the introduction of prices, some from the introduction of fairy tales, and some directly expose questions for students to ask questions around the subject), explore the different links, therefore, move