作为课堂教学的反馈和延伸,作业设计是教学环节的一个重要组成部分,提高作业设计的针对性、层次性、创新性是提高教学实效性的重要环节.目前作业形式较广泛使用的是学校根据学情编写的导学案、校本作业等,笔者在实践中探索并尝试了由学生自主命题、解答、批改的开放式作业设计.题后反思是纠错、总结、提升的有效途径,而 As feedback and extension of classroom teaching, job design is an important part of the teaching process. Enhancing the pertinence, level, and innovation of job design is an important part of improving the effectiveness of teaching. Currently, schools use a wider range of operating forms. In the practice guidance, school-based assignments, etc., the author explored and experimented with open-ended homework assignments that were designed, answered, and corrected by students. Post-questioning is an effective way to correct, summarize, and improve.