"Better grades and higher test scores -- guaranteed!"--Cover.

The mind-stretching puzzles in [these books] help students become fluent, flexible problem solvers who can generate different solutions and different ways to find solutions. Students start with given criteria, determine possible solutions, evaluate them, and then eliminate possibilities before determining a final solution. The puzzles are perfect for school, home, and travel. They are very popular as brain-start, extra credit, sponge, or reward activities. Try one and you'll be hooked! [These books] includes seven engaging verbal and visual skills puzzles: Word Morphs, Codeword Clusters, Secret Word Puzzles, Telephone Code Puzzles, Dooriddles, Shape Puzzles, Line Puzzles. Easy-to-follow directions and answers are included.--Publisher website.

Teaches how to distinguish between correct and incorrect analogies, such as "mouth is related to eat as teeth are related to chew" (correct) versus "mouth is related to eat as stomach is related to liver" (incorrect).