The students participate more. Teachers foster student responsibility. It's easy for students to get lost in a crowd. Teachers increase the number of tasks assigned to each student. The students are given more practice.
Teachers change their questioning technique.
They increase the discussion of ideas and bring about more understanding. Teachers spend more time on laboratory work and demonstrations. Practical application of skills is stressed. Teachers use a greater variety of educational materials and teaching aids to help children learn. They aren't forced to depend on textbooks alone.