求翻译：从“先学后教”的教学方法中不难看出，在整个教学过程中，教师与学生的角色成功的互换，学生成为了教学的主体，大部分的时间都是学生在自学、思考、讨论、交流，虽然教师讲的很少，但其中的每一步都离不开教师的引导和点拨。教师让学生以组为单位进行讨论、交流，使每个学生都积极、主动的参与到学习中来，这更有利于优生带动后进生共同进步，这也体现了“尊重主体，面向全体”的教学理念。是什么意思？

From the "first post-teaching" teaching method is easy to see, in the whole process of teaching, teachers and the role of a successful exchange student, teaching students to become the subject of most of the time students in learning, thinking, discuss, exchange, although teachers say very little, b

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After “first studies teaches” in the teaching method not difficult to see, in the entire teaching process, the exchange which the teacher and student's role succeeds, the student becomes for the teaching main body, the majority of time all are the student are studying independently, the ponder, the

"After school education" teaching method is not difficult to see that throughout the course of teaching, teachers ' and students ' role of successful swaps, students become a teaching of subjects, most of the time students in learning, reflection, discussion, exchanges, although teachers say little,