课堂教学是一门精彩纷呈、变幻莫测的艺术.新课程背景下如何提高课堂教学的有效性是当前教育界热议的话题和焦点.我想,如何利用变式训练来提高教学的有效性,不仅是化学教师所关心的,也是多数教育者都关注的问题.教育者要为每一位学生提供同样的学习机会,也要帮助每一位学生充分发展.究其核心就是要尊重学生个性差异,运用各种方法、创造各种条件引导学生主动探究和创造学习.“变式训练的课堂教学”就是很好的载体,符合时代的要求.但目前我们的化学课堂还存在着这样一些问题:老师讲解多,学生思考 Classroom teaching is a colorful and unpredictable art.How to improve the effectiveness of classroom teaching in the context of the new curriculum is the hot topic and focus of current education.I think how to use variant training to improve the effectiveness of teaching Is not only the concern of chemistry teachers, but also a problem that most educators are concerned about.Educators should provide every student with the same learning opportunities as well as help every student fully develop.The core of the study is to respect the students’ personality Differences, the use of various methods to create a variety of conditions to guide students to actively explore and create learning. “Variant training of classroom teaching ” is a good carrier, in line with the requirements of the times.But at present, our chemistry class is still there Some questions: teachers to explain more, students think