Review sheets and other types of homework are an important part of the review process. Get parents involved especially with younger children. The oral review process is also good,not just another lecture, but a presentation tying everything together, relating it to the students and to any information that has come to light since the material was first presented. The pen and pencil review is also excellent, since as Gregory says, The pen is the best eye. Having students write compositions, essays, and summaries of what they have learned forces them to assimilate the new information.
Application is another form of review,perhaps the ultimate form of review.
Let us say, for example, that you teach a Bible lesson on charity and doing good as a volunteer, focusing on the needs of the elderly. The lesson could end with a ministry visit to a nursing home. Most students will never forget what they learned in such a unit. Homework is also an excellent review. Rather than give students busy work for homework, teachers should carefully assign work related to what has been taught in class.