24 Death-Defying Challenges for Young Mathematicians
 
Escape an enemy spy using ratios and proportions, destroy an out-of-control asteroid through geometry, defeat vampires using algebraic equations, use powers of ten to make a lifesaving medicine for a scientist in the jungle, and other perils where survival depends on finding a correct result by using math. If stuck, “Euclid’s Advice” gives helpful tips. A step-by-step solution is provided for each challenge as well as a “Math Lab,” a way of putting each principle into practice using simple materials.
Hardcover.
 
Grades 5-7.....242 pages