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一、教学目标1.通过“食物品尝会”活动,学会从提出的问题中进行准确的猜想与假设。2.在教师指导下,学会搜集资料,验证猜想。3.知道什么是微生物,以及微生物与人类的关系。二、教学重难点1.重点:通过“食物品尝会”活动,学会从提出的问题中进行准确的猜想与假设,并进行验证。2.难点:了解有害微生物是怎样影响我们的生活的。三、教学准备1.老师准备:鲜牛奶、酸牛奶、新鲜豆腐、豆腐乳、新鲜蔬菜、泡菜。
First, the teaching objectives 1. Through the “food tasting ” activities, learn from the questions raised in the accurate guess and assumptions. 2. Under the guidance of teachers, learn to collect information to verify the conjecture. 3. Know what is microbes, and the relationship between microbes and humans. Second, teaching heavy and difficult 1. Important: Through the “food tasting ” activities, learn from the questions raised in the accurate guess and assumptions, and verify. 2. Difficulty: Learn how harmful microbes affect our lives. Third, teaching preparation 1 teacher to prepare: fresh milk, yogurt, fresh tofu, fermented bean curd, fresh vegetables, pickles.