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每一个单元教学有难点,每一节课,甚至每一个定理的证明、公式的推导也都有其难点。教学难点主要靠教师对教材的钻研,对学生情况的了解以及教学经验来确定。此时此地是难点,彼时彼地却不一定是难点。一般来说,新概念,新方法,抽象理论,综合应用题都比较难。例如高中二年级数列这一单元,数列的概念和通公式既是重点又是难点,此外等差、等比数列的通项公式,前n项和以及综合应用题等也都是难点。下面结合教学的体会,谈谈怎样突破这一单元的难点,提出几点意见供同志们参考。
Every unit has difficulty in teaching, each lesson, even the proof of each theorem, and the derivation of formulas have their difficulties. Difficulties in teaching are mainly determined by teachers’ study of teaching materials, understanding of students’ conditions and teaching experience. It is difficult at this time, but it is not necessarily difficult at the time. In general, new concepts, new methods, abstract theories, and comprehensive problems are more difficult. For example, in the second grade series of high school, the concepts and common formulas of the series are both important and difficult. In addition, the general formulas such as arithmetic and geometric series, the first n terms, and the comprehensive application questions are also difficult. The following combination of teaching experience, talk about how to break through the difficulties of this unit, put forward several opinions for comrades to refer to.