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现代课堂教学倡导学生主动参与,乐于 探究。而要体现这一新理念的关键,就是教 师要注重问题情境的创设。正如美国数学家 哈尔莫斯所说:“问题是数学的心脏。”有了 问题,思维才有方向,才有动力。所以,在 数学课堂教学中,教师要有目的、有意识地 创设各种问题情境,引发学生产生认知上的 冲突和困惑,激发起他们的探究欲望。下面 结合教学实践,谈谈如何创设问题情境。
Modern classroom teaching advocates students take the initiative to participate, willing to explore. The key to embody this new concept is that teachers should pay attention to the creation of problem situations. As the American mathematician Halmos said: “The problem is the heart of mathematics. ” There is a problem, thinking has its own direction, there is momentum. Therefore, in the classroom teaching of mathematics, teachers should have purposefully and intentionally create various problem situations, trigger students' cognitive conflicts and puzzles, and stimulate their desire for inquiry. The following combination of teaching practice, talk about how to create a problem situation.