An illustration of a sphere showing a radius of 1 foot. Illustration could be used for calculating volume.

Bilingual Counting Card featuring an illustration of one Sponge Diver.

English Counting Card featuring an illustration of one Sponge Diver.

Spanish Counting Card featuring an illustration of one Sponge Diver.

Bilingual Counting Card featuring an illustration of one Starfish.

Saint Stephen I was Grand Prince of the Magyars (997-1001) and the first King of Hungary (1001-1038).…

Trigonometric reference triangles/angles drawn for 60 degree reference angel in quadrants I and II.

Right triangle OQP with angle of 35 degrees, height of .70 inches, and leg of 1 inch.

Right triangle OQP with angle of 40 degrees, height of .64 inches, and hypotenuse of 1 inch.

Special right triangle with angles 30 degrees, 60 degrees, and 90 degrees with side measures/relationships…

Special right triangle with angles 45 degrees, 45 degrees, and 90 degrees with side measures/relationships…

William I of England (1027 – 9 September 1087), better known as William the Conqueror, was Duke…