两个已知条件的两步应用题.即其中的一个已知条件在解题的过程中要用两次,这是第五册两步应用题教学的一个难点。也是两个条件的两步应用题教学的难点。如何突破这个难点呢?我在教学中采取了以下几点做法。一、领会教材编排意图,明确要求在教学中,我认真钻研了大纲、教参、教材,明确了教材的编排意图。本节教材是把两步应用题分为 Two known conditions of the two-step questions, that is, one of the known conditions in the process of solving problems to be used twice, which is the fifth volume two-step application problem teaching a difficulty. Is also a two-pronged application problem teaching difficult. How to break through this difficulty? I took the following practices in teaching. First, to understand the intent of the textbook layout, a clear requirement in teaching, I seriously studied the outline, teaching parameters, teaching materials, a clear textbook intent. This section teaching materials is divided into two-step application