片断一:师:下面让我们看看蓝猫一天的学习生活情况。(课件演示,学生欣赏。画面最后定格在5个整点时刻的钟面。)师:哪位同学知道这是什么时刻?你是怎么知道的?生1:时针指着7,分针指着12,所以是7时。生2:时针指着8,分针指着12,所以是8时。生3:时针和分针都指着12的时候,就是12时 Piece 1: Teacher: Let us look at the blue cat day of learning and living conditions. (Courseware demonstration, students enjoy.) The picture is finally frozen in the 5 hour clock face.) Teacher: Which students know this moment? How do you know? Health 1: hour hand pointing to 7, minute hand pointing to 12 So it is 7 o'clock. Students 2: hour hand pointing 8, minute hand pointing 12, so it is 8:00. Students 3: hour and minute hands are pointing at 12, it is 12 o'clock