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教学目标:1.经历探索平行四边形有关概念和性质的过程,使学生理解平行四边形的概念和性质。2.探索并掌握平行四边形的对边相等,对角相等的性质。3.知道解决平行四边形问题的基本思想是化为三角形问题来解决,渗透转化思想。4.通过探索平行四边形的性质,培养学生简单的推理能力和逻辑思维能力。5.在进行探索的活动过程中发展学生的探究意识
Teaching objectives: 1. Experience the process of exploring the concepts and nature of parallelograms to enable students to understand the concept and nature of parallelograms. 2. Exploring and mastering the nature of equal sides and equal diagonals of parallelograms. 3. Know that the basic idea of solving the problem of parallelograms is to solve the problems of triangles, and to infiltrate the ideas. 4. By exploring the nature of parallelograms, students can develop simple reasoning and logical thinking skills. 5. Develop students’ sense of inquiry in the process of exploring activities