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教学二年级人教版“轴对称图形”一课,教师创设情境,用多媒体呈现春天的美丽景色,出现房子、蝴蝶、蜻蜓等画面,又配上了画外音,让学生尽情欣赏(用时两分钟)。学生看完以后交流。师:看了这么多,你有什么感受和想法?生1:我觉得春天很美。生2:我觉得春天的田野很好看。教师接着将画面定格在有瓢虫、松树、蝴蝶、风筝、蜻蜓等的图上。师:观察这些图形和图案,你发现了什么?生1:我发现它们都很美。生2:我发现有的会飞,有的不会飞。生3:我发现它们有的有眼睛,有的
Teaching PEP 2 “Axisymmetric Graphics ” lesson, teachers create situations, present the beautiful scenery of spring with multimedia, there are pictures of houses, butterflies and dragonflies, and they are accompanied by voice-overs to let students enjoy minute). After reading the students exchange. Teacher: Looked so much, what do you feel and think? Health 1: I think the spring is beautiful. Health 2: I think the fields in spring are good looking. Teachers will then freeze the picture on a map with ladybugs, pine trees, butterflies, kites, dragonflies and more. Teacher: What do you discover when you look at these figures and patterns? Student 1: I find that they are beautiful. Students 2: I found that some will fly, some will not fly. Students 3: I found that some of them have eyes, some