The Culture Puzzle - By Mario Moussa & Derek Newberry & Greg Urban (hardcover) : Target
Galactic Greg's Comic Book Store, Side Show Collectible Statues, Collectible Card Games, Magic The Gathering, Trade Paperbacks, Games, Role Playing Games, Table Top Games, Dice, Warhammer 40K, Dungeons & Dragons, Pathfinder -
Greg's 2x2x50 SLS puzzle
Greg Tang Math - I love Greg Jr's Pictarithm puzzles. Numbers can simultaneously be both a part and a total! Such a clever way to reinforce part-whole relationships while developing computational fluency.