Stretch your brain up, down, and sideways with addictive area mazes! Introducing a new puzzle obsession for sodoku lovers . . . amazing, absorbing area mazes. First invented for gifted students, area mazes blend grade-school math with genius logic. Put down that calculator! You can always find "?" using simple, whole numbers, your wits—and a pencil. Already hooked on area mazes? Venture into the third dimension with 100 3D puzzles, included here for the first time by creator Naoki Inaba. With 300 perplexing problems in all, The Big Puzzle Book of Area Mazes offers hours of brain-building fun, from scratching your head to shouting "aha"!

Over 30 dazzling deceptions, largely abstract, emphasizing geometric patterns. Paper Moon, Pentagon, Rhombus, an enclosed grid of Manhattan streets, other constructions with simulated walls, op art effects and more. Designed for intermediate, advanced puzzlers. Directions and solutions included.

Contains 100 puzzles and activities for kids ages 4-6, designed to engage your child and teach kindergarten math objectives by elementary school teacher, math specialist, and blogger Hannah Whately. A supplement to help children learn math basics while playing.

Packed with 100 fun puzzles and activities for kids ages 3-5. The colorfully illustrated pages feature bright and engaging themes designed to keep your child's attention and to help prepare them for kindergarten.

Oh no! You've fallen from your mountain path, and now you're lost in the rain forest! You must solve a chain of puzzles to plot your escape route. Devised by an expert on brain training, these mental gymnastics will help you uncover the secret of the jungle temple! You can't skip a challenge, but there are hints to help and full answers to get you on your way.

These recreational logic puzzles provide entertaining variations on Gödel's incompleteness theorems, offering ingenious challenges related to infinity, truth and provability, undecidability, and other concepts. Written by a distinguished mathematician and creator of numerous popular puzzle books, this volume requires no background in formal logic and will delight readers of all ages.

Bestselling author and founder of the Passion movement Louie Giglio helps kids ages 6-10 discover God and His creation through hands-on activities for elementary students. Paired with scientific facts and faith-building elements, these activities include mazes, puzzles, riddles, logic games, diagrams, simple science experiments, and so much more.