I have written 10 questions and answers for 50 6th grade chapter books. In 20+ years of teaching, this is by far the most popular supplemental program with my students and parents. Students have free choice in picking their books, when they are done, they sign up on a whiteboard for a "book chat." During silent reading, the chats are done by parent helpers or myself. If the student answers the questions correctly, they get a reward (classroom tickets), and pick their next book! It's interest based, individualized, and best of all, easy for me to monitor. I love "book chats" more
than answering questions on a computer. My kids love to talk about their reading, and I think it's great for them!