一、问题的提出目前教育教学改革有这样一个不易被人注意的重要问题 :教材定位不准或不去给教材定位 ,以为采用新手段 (例如多媒体 )、新形式 (例如自学法 )就能提高学生素质 .例如 ,目前各地推出“自学、点拨、练习”三环节教学法、“自学、讨论、点拨、练习”四环节教学法、? First, the question raised The current education and teaching reform has such an important problem that is not easy to be noticed: the teaching material is inaccurate or does not locate the teaching material, and it is thought that adopting new methods (such as multimedia) and new forms (such as self-study method) can improve The quality of students. For example, at present, the three-phase teaching method of “self-study, coaching, and practice” and “self-study, discussion, coaching, and practice” are introduced throughout the country.