我校为了将“先学后教、当堂训练”的教学方法落到实处,在采用了导学案的基础上又创建了电子白板教室,使得课堂教学的改革“春风又绿江南岸”。一、教学的情景和探究前置1.教学的情景前置初中化学概念很抽象,如原子是在化学反应中的最小微粒以及分子和离子等概念,不直观,极少有感性材料,学生没有接触过,理解起来很困难。课前通过电子白板将抽象的概 In order to implement the teaching method of “first learn, after training”, our school created the electronic whiteboard classroom on the basis of adopting the guide case and made the classroom teaching reform “Spring and Green Jiangnan shore”. First, the teaching of scenarios and explore pre-1. Teaching scenarios Pre-junior high school chemistry concept is abstract, such as atomic atoms in the chemical reaction is the smallest particles and molecules and ions and other concepts, not intuitive, very few perceptual materials, students do not Contact, it is difficult to understand. Abstract whiteboard through the abstract before class