一、提出问题。是教学活动之始。问题的提出既要使学生明确研究的内容和目的,又要能引起学生的学习兴趣,还要适合学生的知识水平及认识能力,不能太抽象,更不能随意拔高。 二、学生提出假设结构。假设的目的是为了进一步激发学生的学习兴趣,明确研究目的和方向,训练学生运用已有的初步直观认识和有关的旧知识,进行丰富的想象、判断、推理,培养学 First, ask questions. Is the beginning of teaching activities. The problem should be raised not only to make students clear the content and purpose of the study, but also to arouse students 'interest in learning, but also for the students' knowledge level and cognitive ability, not too abstract, but not arbitrarily high. Second, the students put forward the hypothetical structure. The purpose of the hypothesis is to further arouse students' interest in learning, to clarify the purpose and direction of the study, to train students to use the preliminary preliminary visual knowledge and related old knowledge to carry out rich imagination, judgment, reasoning and cultivation