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指导思想:通过复习使学生理解到小学几何中求形体的体积可按通项公式“底面积×高”进行计算。围绕着通项公式的归纳和应用,使小学阶段中所学有关体积计算的知识系统化,网络化,从而提高学生综合运用几何知识的能力。 基本教法:以学生为主体,通过学生的练、议激发学生积极开展思维活动,探求、获取知识。 主要教学步骤:
Guiding ideology: Through the review, students understand that the volume of the body in the elementary geometry can be calculated according to the general formula “floor area × height”. The generalization and application of general formulas around the system make the knowledge about volume calculation learned in the elementary school systematized and networked so as to enhance the students' ability to use the geometric knowledge comprehensively. Fundamentals: Students as the main body, through the practice of students, to stimulate students to actively carry out thinking activities, exploration, access to knowledge. The main teaching steps: