The Way of Ignorance: And Other Essays
Math Logic Mysteries: Mathematical Problem Solving With Deductive Reasoning (Grades 5-8)
Given: Poems
Primarily Logic, Grades 2-4
Walks Through Lost Paris: A Journey Into the Heart of Historic Paris
Piece of Pi: Wit-Sharpening, Brain-bruising, Number-Crunching Activities with Pi (Grades 6-8)
Blessed Are the Peacemakers: Christ s Teachings About Love, Compassion and Forgiveness
One-Hour Mysteries: Grades 4-8