教学活动是师生间的双边活动，是教与学之间信息传递和反馈矫正的过程。教师要真实、全面地掌握学生学习过程中的信息反馈，合理调控教学过程，有效地矫正学生学习过程中出现的错误。这样，能够减轻学生的课业负担，提高课堂教学效率。信息反馈一般可通过学生听讲的情绪、... Teaching activities are bilateral activities between teachers and students, teaching and learning is the process of information transmission and feedback correction. Teachers should have a true and complete grasp of the information feedback in the process of student learning, reasonably regulate the teaching process, and effectively correct the mistakes made in the process of student learning. In this way, students can reduce the burden of homework, improve classroom teaching efficiency. Feedback generally through the students listening emotions, ...