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【课堂实录】步骤一:教师走上讲台,像变戏法似的从口袋中拿出一个彩色的弹力球,并在地上弹了两下……师:(边用弹力球比画边讲)这叫球的下落高度,这叫弹跳高度。多媒体展示:为了测试一种皮球的弹跳高度与下落高度之间的关系,通过试验,得到下列一组数据(单位:厘米)。
[Class Record] Step one: the teacher walked onto the podium, like a juggernaut took out a colored elastic ball from his pocket and played two on the ground ... ... Division: (side with the elastic ball than the painting side) called the ball The height of the drop, this is called the bounce height. Multimedia Show: In order to test the relationship between the bouncing height of a ball and the height of a drop, the following set of data (in centimeters) is obtained through experiments.