When learning any lessons.If students do not understand. The teacher must have the time to explain.After that, students must complete the training review. Need to use class time each subject is no less than 2-3. The hour.
When learning any lessons If students do not understand Teachers need time to explain After that, students have to do retraining. It takes time to learn each subject at least 2-3 hours.
When the lesson of any kind.If students do not understand the teacher must have the time to explain.Afterwards, students have to do exercises to review.Must take each of not less than 2-3 hours.