Who knew rulers could be so much fun? Little kids do, though they don't always have a firm grasp of how to use their rulers. Along comes How Big Is the Lion?, the perfect introduction to how big, how small, how wide, how tall - concepts every preschooler and early elementary school student should know. Every spread invites young readers to measure something on the bright and colourful artwork, using the 6-inch wooden ruler that's attached to the book. Whether it's a dancing pig, a happy crocodile, or a tiny mouse, the rhyming text gently encourages kids to try their hand at measuring - and an answer key in the back of the book helps them see if they got it right. The ruler (featuring both inches and centimeters) comes housed in a little window sleeve right on the front cover, and in the back of the book is a beautiful 5-foot growth chart that kids can hang on their wall to measure how tall they're growing.