数学教学离不开解题教学 ,而提高学生解题能力 ,又不宜搞“题海战术” .我常想能否选择一些有意义 ,但又不太复杂的题目去帮助学生深入发掘题目的各个侧面 ,使学生通过一道题目 ,就如同进入一道大门而发现一个崭新的天地 .我在进行双曲线定义教学时 ,利用新教材《数学》第二册 Mathematics teaching is inseparable from problem-solving teaching, and it is not appropriate to improve students’ problem-solving abilities. It is not appropriate to engage in “Ticks at Sea”. I often wonder whether I can choose some meaningful but less complex topics to help students dig deeper On the side, allowing students to pass a topic is like entering a door and discovering a new world. When I was teaching hyperbolic definitions, I used the new textbook Mathematical Book 2