瑞士心理学家皮亚杰认为:儿童学习的最根本的途径应该是活动,活动是联系主客体的桥梁,是认识发展的直接源泉。根据心理特点,放手让学生在动手、动口、动脑的协调过程中,进行自主探求知识的活动,可发展学生的认知结构。这就要求我们在教学中改变课堂教学模式,实行开放式教学,让学生自主地探究性学习。一、兴趣是学生最好的老师单纯的说教无益于充分调动学生的积极的情感因素,相反 Piaget, a Swiss psychologist, believes that the most fundamental way for children to learn should be activities. Activities are the bridge between the subject and the object. They are the direct source of understanding and development. According to the psychological characteristics, let students let their hands, mouth, brain in the process of coordination, to independently explore the activities of knowledge, can develop the cognitive structure of students. This requires that we change the teaching model of classroom teaching, the implementation of open teaching, so that students explore the sexual learning autonomously. First, the interest is the best teacher of the students Simple preaching is not conducive to fully mobilize the students’ positive emotional factors, on the contrary