1问题提出研究相关文献[1]发现,对于数学阅读和数学阅读能力的培养,国内外研究主要站在学生学的角度谈教师如何加强数学阅读教学和培养学生的数学阅读能力,是基于“学生的学”而研究的,鲜有考虑对教师数学阅读能力培养的论述。有研究认为,数学教师的阅读教学意识淡薄,阅读能力一般,数学教师的阅读能力有待加强~([2])。数学教师阅读能力的高低和是否具有阅读的意识和习惯是他们能否进行阅读教学实验的前提和保证,对于教科书的阅读则是数学教师对教材进行二次开发的前提和基础。本文以“圆的扇形 1 Problems Relevant research [1] found that for the training of math reading and math reading ability, domestic and foreign research mainly focuses on students ’learning about how teachers should strengthen math reading teaching and develop students’ ability of math reading, based on ” Students learn “and research, few consider the discussion of teachers’ ability to math reading ability. Some studies suggest that mathematics teachers’ reading teaching awareness is weak, their reading ability is general, and the mathematics teacher’s reading ability needs to be strengthened. ([2]) The level of reading ability of mathematics teachers and whether they have consciousness and habit of reading are the preconditions and guarantees of whether they can carry out reading teaching experiment. The reading of textbooks is the precondition and basis for teachers of mathematics to carry out secondary development of teaching materials. This article to ”round fan shape