These CD case centers are ideal for reviews and practice on some key reading skills. There are 25 centers total including 5 HOMOPHONES, 5 CONTEXT CLUES, 5 CAUSE/EFFECT, 5 PARTS OF A BOOK, and 5 FACT/OPINION). Each set of 5 centers comes with a student record sheet, answer key for all centers, and an information/organization page with photos. LOVE that these CD cases are easy to store, attractive, and motivating to my students. Cheaper to get them bundled than to buy separately!