要培养出有创新精神和实践能力的人,就必须将学习的自主权还给学生.这要求教师要有以人为本的教育思想,把握蕴含在学科知识之中的学科思想和学科方法,充分利用多种媒体创设情境,让学生感知知识的发生和发展过程,从而实现知识的再发现,从中学习学科方法,领悟学科思想. To cultivate people with innovative spirit and practical ability, we must return the autonomy of learning to the students, which requires that teachers should have people-centered educational thought, grasp the subject ideas and disciplinary methods contained in subject knowledge, and make full use of more The creation of a variety of media situation, so that students perceive the occurrence and development of knowledge in order to achieve the rediscovery of knowledge to learn from the disciplinary approach to comprehend the subject thinking.