Discover Math Matters! With over 15 million books sold worldwide, this award-winning series of easy-to-read books will help young readers ages 5-8 approach math with enthusiasm. Great for fans of MathStart or Step into Reading Math. A day at a Renaissance fair? Pippa isn't so sure. First she gets stuck with the jester costume, then the fair runs out of turkey legs. But after she becomes a game piece in a living board game, positive and negative take on all new meanings. Steps forward could take her to Unicorn Falls. Steps backward to Stinky Swamp. Think positive, Pippa! With engaging stories that connect math to kids' everyday lives, each book in the Teachers' Choice Award-winning Math Matters series focuses on a single concept and reinforces math vocabulary and skills. Bonus activities in the back of each book feature math and reading comprehension questions, and even more free activities online add to the fun! (Math topic- Positive and negative numbers).