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一、教材分析 《日食和月食》一课是在学生认识了月相成因的基础上学习的,本课的知识目标是指导学生认识日食和月食的成因,能力目标是要培养学生推理能力和空间想象能力;科学思想教育目标是要培养学生认真细致、相信科学不迷信的态度。本课是培养学生自行探究和运用知识的能力的典型课例,探究日食和月食的成因是有层次的,探究日食的成因是重点,探究月食的成因要充分体现学生运用已有的知识和能力解决新问题。在探究日食的成因中根据事实材料推测分析是谁挡住了太阳光是难点。 二、教学准备
First, the textbook analysis “eclipses and lunar eclipse” lesson is based on the students to understand the cause of moon phase basis of learning, the knowledge of this lesson is to guide students to understand the causes of solar eclipse and lunar eclipse, the goal is to train students ability Reasoning ability and spatial imagination; the goal of scientific ideological education is to train students to be serious and meticulous, believing that science should not be superstitious. This lesson is to train students to explore their own knowledge and ability to use the typical case study to explore the causes of solar eclipse and lunar eclipse is the level of inquiry into the causes of eclipse is the key to explore the causes of eclipse to fully reflect the students have to use the existing Knowledge and ability to solve new problems. In exploring the causes of solar eclipse based on factual material speculation analysis who blocked the sun is the difficulty. Second, teaching preparation