〔总体思路〕遵循教育教学规律,依据课程改革的要求,以学案为载体,以多媒体为教学辅助形式,以问题设计为主要表现方式,创设良好的教学情境,充分发挥学生自主、合作、探究的精神,完成确定的教育教学任务。〔学情分析〕教学对象为八年级学生,具有一定的自学能力,对简单的问题能结 〔Overall train of thought〕 follow the rules of education and teaching, based on the requirements of curriculum reform, take the case as a carrier, use multimedia as an auxiliary form of teaching, and problem design as the main expression, create a good teaching situation, and give full play to student independence, cooperation, and inquiry The spirit of accomplishing a definite educational and teaching task. 〔Analysis of the situation of the situation〕 The teaching subjects are eighth-grade students, have a certain ability of self-learning, and can end up with simple problems.