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问题情境是探究的起点和主线,也是核心。在新课程实施的今天,广大教师特别重视化学问题情境的创设与问题意识的形成在教学中的重要地位,它们成为有效课堂的一剂良药。那么,如何提高问题情境的有效性,让有效的问题情境为学生体验知识的形成过程提供支撑,为发展思维、提高能力、培养正确的情感态度与价值观提供肥沃的土壤,从而建构富
The problem situation is the starting point and main line of inquiry, which is also the core. The implementation of the new curriculum today, the majority of teachers pay special attention to the creation of chemical problem situations and the formation of problem awareness in teaching an important position, they become effective medicine in the classroom. So, how to improve the effectiveness of the problem situation, to enable effective problem situations to provide support for the formation of student experience knowledge, to provide fertile soil for developing thinking, improving ability and cultivating correct emotional attitudes and values so as to construct wealth