1) The document discusses guidelines for selecting and using instructional materials effectively. It emphasizes that the materials must contribute to learning objectives and be appropriate for students.
2) It recommends preparing oneself, students, and materials according to the PPPF framework: Prepare, Present, Follow up. Teachers should understand objectives and have a lesson plan.
3) For optimal use, teachers should select materials giving a true picture, contributing to objectives, and in good condition. They should also provide guidance, assess learning, and enhance retention through follow up.