“分层次教学模式”充分尊重了学生的学习主体地位,真正落实了尊重学生个体学习差异、面向全体学生开展教学、促进学生实现共同进步与发展的良好教学目的,是迎合现代素质教育理念、真正优化初中生化学学习效率及质量的重要途径。 “Hierarchical Teaching Model ” fully respect the students ’status as the main body of study, and truly implement the objective of respecting the individual differences in learning, teaching for all students and promoting students’ common progress and development, is to meet the modern concept of quality education , The real optimization of junior high school chemistry learning efficiency and quality of important ways.