(Hardback)

(Hardback)

It has ranged from the common sorts of brain teasers such as mazes, arithmetic story problems, and simple geometric puzzles to sophisticated explorations of questions that still concern modern mathematical theorists.

(Hardback)

A reference work for teachers dealing with the subject of conflict. It includes a number of different types of works dealing with war and peace, such as picture books, poetry, biographies, Revolutionary and Civil War books, and stories dealing with pacifism.