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设计思路本节课先通过创设“摘果子”游戏情境,调动起学生学习兴趣,接着谈话引出“我爱读书”活动情境,从中列出一系列实际问题。学生通过自主学习、讨论、探究、交流,迸发出思维的火花,探讨两位数乘两位数的多种方法,结合情境图重点讲解笔算算理,从而使学生在现实的情境中感悟算法。
Design Ideas This lesson first sets out the “picking fruit” game situation, to mobilize students’ interest in learning, and then talk leads to “I love reading book” activities, from which a series of practical problems are listed. Through independent study, discussion, inquiry and exchange, students burst into sparks of thinking, explored multiple methods of double-digit and double-digit numbers, and focused on situational graphs to explain arithmetic of pen arithmetic so as to enable students to comprehend algorithms in realistic situations.