巧妙的课堂引入,可以集中学生的学习注意力,激发学习兴趣,促进师生情感交流,让学生在宽松、趣味、有启发的情境中进入最佳学习状态,而运用现实生活材料、实验实习材料、科学史、设疑等形式引入,不但增强了课堂活力,而且使课堂引入实施策略得到了优化。 Ingenious classroom introduction, you can focus students’ learning attention, stimulate interest in learning, and promote the emotional exchanges between teachers and students, so that students in a relaxed, interesting and inspiring situation into the best learning state, and the use of real life materials, experimental materials , The history of science, the establishment of suspicion and other forms of introduction, not only enhanced the vitality of the classroom, but also to introduce the implementation of the classroom strategy has been optimized.