一、创设情景，引发兴趣。多媒体计算机以其特有的感染力，通过文字、图画、声音、动画等形式对学生形成刺激，能够迅速地吸引学生的注意力，唤起其学习兴趣，从而使学生产生心理需求，进而主动参与学习活动。如在教学“通分”这一课时，在导入环节我设计了一个“唐僧给徒弟分 First, create a scene, triggering interest. Due to its unique appeal, multimedia computers stimulate students 'attention through texts, pictures, sounds, animations and other forms, which can quickly attract students' attention and arouse their interest in learning so as to make students have psychological needs and take the initiative to participate in learning activities . As in the teaching of “pass points” during this class, I introduced in the introduction of a "Tang monk to apprentice points