“以学生为本”是新课程改革的基本思想,探究性学习是实施新课程的一个热点,自主学习是一种让学生主动参与学习的学习方式.在新课程背景下,学生自主探究能力的形成依赖于教师有意识地按照能力形成的规律创设适宜的教学情境.化学学科的特点是开展化学实验探究,让学生“模拟”科学家去探索问题,学习科学研究的方法,养成良好的思维品质,培养学生的观察、思维、操作、想象能 “Student-oriented ” is the basic idea of ​​the new curriculum reform, inquiry learning is a hot spot in the implementation of the new curriculum, autonomous learning is a way of learning for students to take the initiative to participate in learning.In the context of the new curriculum, students explore spontaneously The formation of ability relies on the teachers’ intentional creation of appropriate teaching situations in accordance with the law of ability formation.Characteristics of chemistry are to carry out chemical experiments and explore ways for students ’simulation ’ scientists to explore problems and learn scientific research to develop well The quality of thinking, develop students’ observation, thinking, operation, imagination