While piloting his spaceship through the skies, Captain Invincible encounters three-dimensional shapes, including cubes, cylinders, and pyramids.

Assisted by his knight, Sir Cumference, and using ideas offered by his wife and son, King Arthur finds the perfect shape for his table.

Discusses young Per taking a mathmatical adventure.

"Xaxon Yellowbearyd was the fiercest Viking warrior of his time. Now a map to his hidden treasure lies in the hands of Radius and Per. Together the cousins must decode the strange numbered grid on the map--and figure out the secret of the Viking's X and Y axes. As bandits pursue them, Radius and Per track down clues and use coordinate geometry in their quest for "treasure of the greatest measure"."--Dust jacket flap.

Look around you! You can find circles everywhere. They are on the wheels of cars. They are on the coins in our pockets. Easy text and large pictures help early readers discover that circles are fun!

They are made up of four even sides. This makes the shape perfect for board games, putting tiles on the floor, or holding syrup on a waffle! Easy text and large pictures help early readers discover that squares are fun!