在全面实施课程改革的今天,越来越多的教师意识到:只有让全体学生参与到课堂中来,才有可能使每个学生的潜能得到最大限度的开发。但事实上,不少学生虽然在课堂上参与了教学活动,但他们是在教师的指令下,被动地、机械地参与的。而有效的教学是在有限时间和空间内,采取恰当的教学方式,激发学生学习的兴趣,让学生主动地参与学习过程,获取较大容量的真正理解的有效知识,同时,充分培养和锻炼学生的创新精神和实践能力,形成良好的情感、正 Today, with the full implementation of curriculum reform, more and more teachers realize that it is possible to maximize the potential of each student by involving all students in the classroom. However, in fact, although many students participated in the teaching activities in the classroom, they were involved passively and mechanically under the instruction of teachers. Effective teaching is to take appropriate teaching methods in a limited time and space to stimulate students’ interest in learning so that students can actively participate in the learning process and obtain effective knowledge of a larger capacity of true understanding. At the same time, students should be fully trained and exercised The innovative spirit and practical ability to form a good emotion, positive