Charlie Piechart's second math mystery takes place at school-when a purple, sparkly cone-shaped princess hat goes missing! Margot needs her hat in time for the school play (today!), so Charlie and his dog companion, Watson, are on the case-finding evidence of sparkles and purple paint and keeping on the lookout for geometric clues that might lead to the missing hat. Fantastic colors, clever characters, and beginning concepts in geometry will go down easy as pie, while activities at the end of the book will reinforce the shapes and the story. Dynamic duo Eric Comstock and Marilyn Sadler bring the right level of energy and entertainment for this engaged picture book audience.

With a dinnertime mystery and 5 hungry suspects, Charlie Piechart makes fractions fun. Charlie Piechart has a piechart for a belly, and it's a belly that's perfect for showing fractions. In his first mystery, perfect for little math enthusiasts, it's pizza night at the Piecharts' house. How about veggies on top? "NO VEGGIES!" yell 4/6 of the pizza eaters. No one wants anchovies, either. They like Charlie's idea best: pepperoni. But with 6 pizza eaters, 3 sizes of pizza on the delivery menu, and 2 slices allotted for each person, it is no surprise when there's a mystery! A scream from Charlie's sisters reveals the issue: 1 out of 12 slices has gone missing. So who did it? Charlie counts the suspects and questions each one (except Mom!). But could he be forgetting someone? This colorful, hysterical mystery adventure is perfect for both reluctant and enthusiastic math learners. Great for fans of G Is for Googol, Sir Cumference and the First Round Table, and Math Curse. Correlates to the Common Core State Standards in English Language Arts

It's puppy primping time! Watson the dog has an appointment at the Dirty Dog Salon at 4:15 P.M.-but no one can find him! Follow the clock as time runs out to find Watson the Dog in this third Charlie Piechart mystery.

Spotting clues, from pink nail polish to cookie crumbs, Charlie and his pal Lewis are determined to get Watson to the groomers for his shampoo and haircut. Can they race against the clock and find him with enough time to make it on time

Complete with visual sidebars that illustrate the elapsing and remaining time, the third picture book mystery in the Charlie Piechart series is the perfect addition to any K-2 classroom or at-home library. Young math enthusiasts and time-keepers will adore this actioned-packed treat!