Purple Book - Miquon Math Lab Materials Author:Lore Rasmussen, Robert Hightower, Peter Rasmussen Miquon Math Purple Book is the sixth book in the Miquon Math series. The series is designed to be used with Cuisenaire Rods and uses a hands on approach. The purple book is designed for younger children but can be used by older children as well. Each page is an activity. Answer key not included.