The adjustable reading level concept is revolutionary! Books that can be adjusted for different reading levels and still teach the same lessons - simply outstanding! All you have to do is click on Levels and choose between reading levels 1 through 5 (1 being the easiest). You can even adjust the text size.

Crack the Books offers 15 non-fiction, standards based, core curriculum aligned, science and history digital books that take reading comprehension and interactivity the next level. My 4th grade students were thoroughly engaged and loved the alternative to traditional textbooks. The texts are very well written and include amazing pictures and animations, but what makes the digital books even more engaging, and effective teaching vehicles, are the added features. Each book includes read-to-me and read myself functionality, clickable words that pop-up definitions to expand vocabulary and understanding, highlighting, note-taking, videos, interactive charts and globes, and truly fun facts.

As a teacher I was pleasantly suprised to find that each chapter offered tests that were automatically graded, and even included essay questions. The chapter by chapter glossaries were even tailored to reading level. Plus, there are lesson plans, worksheets, activities, and even study guides. The price is excellent too - a great value for all you get.

The adjustable reading level lends itself well to mixed-age classrooms and homeschooling parents with different aged kids. Now everyone can learn the lessons at the same time while building reading confidence!