Charlie Piechart and the Case of the Missing Pizza Slice

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, an...