全日制义务教育《化学课程标准》指出:作为科学教育的重要组成部分,新的化学课程倡导从学生和社会发展的需要出发,发挥学科自身的优势,将科学探究作为课程改革的突破口,激发学生的主动性和创新意识,促使学生积极主动地学习,使获得化学知识和技能的过程也成为理解化学、进行科学探究、联系社会生活实际和形成科学价值观的过程。让每一位学生以轻松愉快的心情去认识多彩的化学世界,给每一个学生提供平等的学习机会,让学生有更多的机会主动地体验探究过程等。这些基本理 Full-time compulsory education, “Chemistry Curriculum Standards” pointed out: As an important part of science education, the new chemistry curriculum advocates from the needs of students and social development, to play their own advantages, the science inquiry as a breakthrough in curriculum reform, to stimulate students Initiative and sense of innovation to promote students to learn proactively and make the process of acquiring chemical knowledge and skills a process of understanding chemistry, conducting scientific inquiry, linking with the reality of social life and forming scientific values. Let every student in a relaxed mood to understand the colorful world of chemistry, to provide each student equal opportunities for learning, so that students have more opportunities to take the initiative to experience the inquiry process. These basic principles