【背景】学习的过程其实就是一个经历再创造的过程,而不是纯粹的模仿和纯粹的记忆。在过去那种“提出问题—解决问题”的教学模式中,孩子们记住的只是单调、枯燥的概念和程式化的解题方法,这是不利于激发他们的创造潜能的。古人云:“纸上得来终觉浅,绝知此事要躬行”。强调学生是学习的主体,提倡让学生自己发现问题,找出解决问题的办法。【案例】学习圆的认识一课时,我上课前请几位同学帮我拿了一些物品(长绳、标杆、垒球、纸篓、卷尺等)到操场,然后吩咐 [Background] The process of learning is actually a process of re-creation, rather than pure imitation and pure memory. In the old teaching model of “asking questions - solving problems”, children remembered only monotonous, boring concepts and stylized problem solving methods that were detrimental to stimulating their creative potential. The ancients said: “The end of the paper to feel shallow, must know this matter to practice”. Emphasize that students are the main body of learning, advocating for students to discover problems and find solutions to problems. 【Case】 When I got to know a class, I asked a few students to help me to take some items (long rope, benchmark, softball, paper basket, tape measure, etc.) to the playground before class, and then commanded