由于目前数学教学越来越流于形式化,在新课改的时代背景下,以“淡化形式,注重实质”为思想的主题式教学正式被提出.在数学教学中,初中教师要开展有意义的教学活动,让每个学生都能在学习过程中得到不同程度的发展,进而让学生积极主动地参与到教学过程中去,积累专业知识.因而,这就要求初中教师在进行教学实验的时候,要创建真实的问题情境,激发学生的主观能动性,高效地完成学习任务.教师设计一个主题之后,学生围绕主题来展开探索活动, Due to the current formalization of mathematics teaching, under the background of the new curriculum reform, thematic teaching based on the ideology of “dilute the form and focus on the essence” was formally put forward .In mathematics teaching, junior middle school teachers should carry out Meaningful teaching activities, so that each student can be in the learning process to varying degrees of development, and thus allow students to actively participate in the teaching process to accumulate professional knowledge.Therefore, this requires junior high school teachers in teaching experiments , To create a real problem situation, to stimulate students’ subjective initiative, to complete the task efficiently.After teachers design a theme, students focus on the theme to start the exploration activities,