有效教学需要教师对课堂教学的整体把握,以及必要的技术层面的基本方法和操作要领支撑。化学课堂有效教学在激发学生主体参与的基础上,要求加强目标引领、精选教学内容、展开合理有序、利用问题导学、注重直观形象、及时反馈调整,确保学生的学习顺利进行。 Effective teaching requires teachers to grasp the overall classroom teaching, as well as the necessary technical aspects of the basic methods and operating essentials support. On the basis of stimulating the participation of students, the effective teaching of chemistry classroom requires that the goal be strengthened, the teaching content should be selected, the teaching should be conducted in a rational and orderly way, the problems should be learned, the visual image should be emphasized, and the feedback should be timely adjusted to ensure the smooth progress of the students’ learning.