Engaging riddles in rhyme for each letter of the alphabet challenge you to match letters and sounds, think logically, and expand your knowledge of math.
Praised by The New York Times as "Number one on anybody's list," this enchanting alphabet book also offers a series of word jumbles. Includes solutions. "Don't
A boy awakens to find that everything around him is odd, from three sleeves on his shirt and five legs on his dog to clocks and calendars with only odd numbers.
Number puzzles, spatial/visual puzzles, cryptograms, Sudoku, Kokuro, logic puzzles, and word games like Frame Games are all a great way to teach math and proble
Boo! There is a mystery behind every door of the creepy haunted house. Luckily, algebra will help you solve each problem. By using simple addition, subtraction,