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一、创设情境,激发思维 进行概念教学,首先应设法唤起学生的积极思维,而积极的思维又总是从学生解决问题的迫切愿望开始的。所以教师必须创设使学生感到真实的、具体的、有趣的和容易理解的问题情境,让学生身临其境而受到刺激,促使他们产生学习的愿望并为解决某一问题而自觉地积极思维,这就是概念教学的开始阶段。例如,教师在讲三角形的内角和时,可先让学生准备一些不同的三角形,然后让学生量一量内角的度数,说出其中两个角的度数,教师马上报出另外一个角的度数。这时学生会觉得很奇怪,老师为什么猜得这么准,学生很想
First, the creation of situations to stimulate thinking of the concept of teaching, first of all should try to arouse the students 'positive thinking, and positive thinking is always from the students' urgent desire to solve the problem began. Therefore, teachers must create a real, concrete, interesting and easy-to-understand problem situation that makes students feel motivated and motivated, make them desire to learn and actively think about solving a problem, This is the beginning of concept teaching. For example, when teachers are talking about the interior angles of triangles, students may first prepare different triangles and then let the students measure the degrees of interior angles, the degrees of the two angles, and the teacher immediately report the degrees of the other corners. At this time, students will feel very strange, why teachers guess so prospective, students want