好大夫,必然诊病准确,用药对症;好教师,必然能掌握学生,因材施教。下面就这个问题谈几点平时的做法。一、问(一)问学生由于诸多原因,学生往往不便或不爱向老师问问题,这很正常,但这并不能说明他们没有问题,怎么办?那就是教师要问学生。如在讲直线与平面垂直的判定时,师生的问答情况如下:师:若一条直线与平面内的一条直线垂直,那么这条直线与平面垂 Good doctor, inevitable diagnosis and treatment, medication symptomatic; good teachers, students must master, individualized. Here to talk about this issue a few usual approach. First, ask (a) to ask students for many reasons, students often inconvenience or love to ask questions to the teacher, this is normal, but this does not mean that they have no problem, how to do? That is, teachers should ask students. As in the case of a straight line and the plane vertical judgment, the teachers and students question and answer the situation is as follows: Teacher: If a straight line and a plane perpendicular to the plane, then this straight line and plane vertical