如何提高初中化学教学的有效性、提高学生的学习能力呢?经过多年的探索与尝试,我觉得概念图是一种改变学生的认知方式,提高学习的有效性的重要手段。 How to improve the effectiveness of junior high school chemistry teaching and improve students ’ability to learn? After years of exploration and try, I think conceptual map is an important means to change students’ cognitive mode and improve the effectiveness of learning.