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教学内容:有趣的平衡(人教课标版十二册第114、115页)教学内容分析:《有趣的平衡》属于六年级第六单元《整理和复习》中的综合应用的第一课时,本节课是在学生掌握了比例知识的的基础上设计的,其目的是使学生通过实验,发现并初步感受杠杆原理,同时通过验证这一规律,发现当杠杆“左边的刻度×棋子数”的积不变时,“右边的刻度”和“棋子数”成反比例关系,加深学生对反比例关系的理解。
Teaching content: Interesting balance (human teaching standard edition 12 volumes 114,115) Teaching content analysis: “Interesting balance” belongs to the sixth unit of sixth grade “finishing and review” in the first application of the integrated course, This lesson is based on the students master the proportion of knowledge based on the design, the purpose is to enable students to experiment through the discovery and initial perception of leverage principle, at the same time by verifying the law and found that when the lever “, The” scale on the right “and the number of” chess pieces "are inversely proportional to each other, deepening students’ understanding of the inverse relationship.