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.