Curated OER
Educational Technology Clearinghouse: Maps Etc: Texas, 1898
A map from 1898 of Texas showing the capital at Austin City, principal cities and towns, railroads, rivers, and coastal features. "Lone Star State. Origin of name not definitely known; supposed by some to have been name of Indian tribe....
Curated OER
Circle Picture
This site provides definitions for different parts of a circle, pictures to more clearly represent formulas involving circles. Some of the formulas discussed include: area of a circle, area of a sector of a cirles, circumference, length...
Curated OER
Parametric Unit Circle
This site provides definitions for different parts of a circle, pictures to more clearly represent formulas involving circles. Some of the formulas discussed include: area of a circle, area of a sector of a cirles, circumference, length...