“预设”与“生成”是对立统一的.一方面,课前细致的预设是静态的,而课堂教学是动态生成的,二者之间常常出现各种差别;另一方面,预设与生成又是互相依存的,没有预设的生成往往是盲目的,而没有生成的预设又往往是机械的.如何处理好数学课堂教学中“预设”与“生成”的关系,几乎是每位教师经常思考的话题. “Preset” and “Generation” are the opposites of the unity. On the one hand, the detailed pre-classical presupposition is static, and the classroom instruction is generated dynamically. There are often various differences between the two; On the other hand, presupposition and generation are dependent on each other. There are no preset generations that are often blind, and those that are not generated are often mechanical. How to deal with “preset” and “preset” in mathematics classroom teaching The generation of " relationships is almost a topic that every teacher often thinks about.