很多学生在解题中存在“记得住,用不上”、“有知识,没思路”的现象,我们称之为“半步”现象。“半步”现象有许多表现:有的不能从情境中的关键词迁移到知识原理,推理差“半步”;有的不能透过现象看本质,深入差“半步”;有的不能从多角度分析问题,发散差“半步”;有的不能充分 Many students in the problem-solving exist “remember live, do not have access to”, “knowledge, no thinking” phenomenon, which we call the “half step” phenomenon. There are many manifestations of the “half-step” phenomenon: some can not migrate from the key words in the context to the principle of knowledge and the reasoning is worse than “half step”; others can not see the essence through the phenomenon and go deep into the “half step”; and some can not Multi-angle analysis of the problem, divergence difference “half step”; some can not fully