一、习题教学的单向性活动,建立习题教学的多向性原则.可以学生讲师生听,学生问学生答(或讨论)或教师答,学生出题师生做.这一方面的活动并不排斥教师讲学生听,教师问学生答,教师出题学生做.在习题教学中,应该根据具体情 First, the unidirectional activities in the exercise of the exercises, establishing the principle of multidirectionality in the exercise of the exercises. Students can be lectured by students, students ask the students to answer (or discuss) or the teacher answers, the students give questions to teachers and students to do this activity. Do not exclude teachers from listening to students, teachers ask students to answer questions, and teachers ask students to do. In the exercise of teaching, should be based on the specific situation