If we teach children everything we know, their knowledge is limited to ours. If we teach children to think, their knowledge is limitless.This 29-page ebook for Grades K-5 is a sample collection of our most popular quick, fun thinking puzzles. The wide variety of activities build deductive, inductive (inferential), and creative thinking skills. The puzzles are perfect for quick, fun, brain-teasers in the classroom or at home. They are very popular as brain-start, extra credit, sponge, or reward