在上完“角”这单元后,为了让学生巩固不同的角的概念,我设计了一堂拼角的游戏课。学生用一副三角板中的两个不同的直角三角板,看能拼出多少个大角。每拼一个新的大角,都要做到以下六步:第一,两个三角板的某两个角拼在一起形成一个新的角。第二,画出由两个小角拼出的大角。第三,分别标出两个小角的度 After completing the unit “” corner, I designed a game of playing the game in order to allow students to consolidate different angles. The student uses two different right-angled set halves in a set square to see how many big horns they can make. Each fight a new high angle, to be done in the following six steps: First, the two corners of the two panels together to form a new corner. Second, draw the big corner spelled out by two small corners. Third, mark the degree of two small horns separately