一、课前铺垫错误——预设精彩之课堂1.显示错误,防患未然主动呈现错误,让学生在“尝试错误”的过程中比较、判断、思考甚至引发争议,创造条件使学生在错误中反思,在反思中探究,从而达到预先控制“差错”的目的,这样可能会得到较好的教学效果。如,在进行蹲踞式跳远教学之前,教师在“腾空步”的图片上,分别用三种不同颜色的线标出起跳方向(往上、往前上、往前),让学 First, the bedding in the classroom before the mistake - presupposition of the wonderful classroom 1. Show the error, take the initiative to prevent errors Prevent students from “Trying Errors ” in the process of comparison, judgment, thinking or even controversy, to create conditions for students in error In reflection, in the reflection of exploration, so as to achieve the purpose of pre-control “error ”, so that you may get better teaching results. For example, before squatting long jump teaching, teachers in the “vacate step” on the picture, respectively, with three different colors of the line marking the starting direction (up, forward, forward), so that learning