传统的课堂教学习惯于“先教后学、先讲后练”,表现为“重教轻学、重说轻做”的狭隘的教学观。学生在学习过程中始终处于被动地位,学习潜能得不到很好的开发,如果在教学中能为学生提供“做数学”的机会,采取“先学后教、先做后说”的教学策略,让学生在学习过程中去充分展示个性 The traditional classroom teaching accustomed to “pre-school after school, first after training”, manifested as “re-teaching light, emphasizing light” narrow view of the teaching. Students in the learning process has always been in a passive position, learning potential can not be a good development, if in teaching can provide students with “the opportunity to do mathematics”, to “take the first to teach, first to say,” the teaching strategy , So that students in the learning process to fully display the personality