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教学内容:小学自然第四册《水》的教学设计。教学目的:通过本课教学,要使学生认识水是没有颜色、没有气味、没有味道、透明的液体。培养学生观察事物的能力和利用比较的方法和分析综合的方法认识事物性质的能力。课前准备:准备演示的实验器材:木块、石块、玻璃板、五杯清水,白粉笔、暗袋(装上木块、乒乓球等)。准备分组观察的实验器材:分别把汽油(1)、牛奶(2)、白醋(3)、水(4)、酒精(5)、白糖水(6)等装入同样大小的试管,并编上号。各组用一烧杯装上半杯水供观察用。
Teaching content: The fourth grade of primary school “water” teaching design. Teaching Objective: Through the teaching of this lesson, make students recognize that water is no color, no smell, no taste, transparent liquid. Develop students' ability to observe things and their ability to recognize the nature of things by using comparative methods and analyzing integrated approaches. Pre-class preparation: Preparation of demonstration equipment: wooden blocks, stones, glass plates, five cups of water, white chalk, dark bags (loaded with wood, table tennis, etc.). Prepare experimental equipment for group observation: Put the same size test tubes into gasoline (1), milk (2), white vinegar (3), water (4), alcohol (5) and sugar water number. Each group was fitted with a glass of water for observation.