In this activity, students recognize direct variation as a rate of change and apply it in problem situations. They also use average rates of change to make decisions in problem situations.

Young children practice jumpting and hopping through "Spot jumping," a game that requires them to listen to an instructor's directions and perform specific hopping tasks. This website includes ideas for homework related to the activity,...

This creative applet allows you to tessellate variations you create starting with either a triangle, rectangle or hexagon. Directions are only a click away.

"South China comprises the drainage basins of the middle and lower Yangtze River, the basin of the His Chiang (West River) in Kwangtung and Kwangsi; and the mountainous coastal provinces of Fukien and Chekiang. The division between the...

A map from 1898 of Mexico, Central America and the West Indies. The map includes an inset map of Cuba and the Isthmus of Nicaragua. "The surface of the Rocky Mountain highland in Mexico is quite similar to that of the great plateau...