The Hey Jack series is great for social emotional learning. Each book starts with a picture of Jack and the mood he is feeling in the book. It also labels Jack with reactions the body might have to that feeling. In the Playground Problem, Jack's friend is sick and he doesn't know who he will play with out at recess. This transitional chapter book has only 3 chapters, large print, a small picture on every page, and easy to read words. Young elementary school students will be able to relate to the real life situations and problems Jack goes through. They will also love that they can read this starter chapter book all on their own.