一、从纷繁复杂到简单明了笔者听过许多节“解决问题的策略——假设”的教学,几乎所有的教师都制作了大量可观的幻灯片,让人眼花缭乱。然而,孩子们的兴趣似乎都不能提起来,课堂气氛非常沉闷,就是连听课的教师也都有昏 First, from the complicated to the simple and clear I have heard many “problem-solving strategies - hypothetical” teaching, almost all of the teachers have produced a large number of impressive slides, dazzling. However, it seems that children’s interests can not be brought up, the classroom atmosphere is very boring, that is, even the lectures teachers also have faint