"This 5-level guided reading system helps kids master verbal, reading, and writing skills -- starting at any level. Every app, storybook, and video has been hand-selected to help kids gain the knowledge they need to transition from learning-to-read to reading-to-learn. Early Developing packs are ideal for readers who have reached the following milestones: - Participates in conversation - Asks questions to clarify uncertainty - Understands the organization...