一、创设有效的问题情境教师的问题应当与教学内容紧密联系,并且为学生提供足够的思考和探究的空间,让学生通过讨论形成答案,而不能简单的将答案传达给学生,这样学生会失去主动探究的兴趣。比如在讲到圆心角、顶点在圆内的角、圆周角几个概念时,虽然学生都能够明确读数定理,但是这几个角之间又存在着怎样的联系?这一问题就为学生提供了讨论的话题,通过讨论的方式使学生对知识的理解和记忆更 First, create effective problems Situational teachers should be closely linked with the teaching content, and provide students with enough space for thinking and exploration, so that students can form an answer through discussion, but can not simply communicate the answer to students, so students will lose initiative Explore the interest. For example, when it comes to the central angle, the vertices in the circle of the angle, the angle of the circumference of several concepts, although students are able to clear the reading theorem, but there is such a link between the angle? The problem for students The topic of discussion, through the way of discussion so that students understand and remember more knowledge