A dozen interactive tutorials are what help make the basics of calculus more clear for those students who need additional explanation. Clear directions, simple examples, and interesting graphics are all part of this resource.

This site, created by a math professor at Texas A & M University provides notes about and defines different types of asymptotes.

This resource provides interactive visualizations of probability concepts. Covers basic probability, compound probability, probability distributions, frequentist inference, Bayesian inference, and regression analysis. The authors are...

A thorough review of calculus series. Links direct the student to the basic properties of series, as well as to explanations and examples of convergence tests in series. The expansions for exponential, logarithmic, and root functions and...

This pdf presents a thorough examination of plant adaptations with emphasis on different types of functional and reproductive adaptations.

Dozens of statistical terms are defined and illustrated in this glossary.

The Karamojong are a pastoral group who inhabit the plateau region of Uganda. Linguistically, the Karamojong belong to the Central Group of the Nilote Language Family, which also includes several neighboring groups that speak a mutually...

" North China includes the densely populated and intensively cultivated North China Plain, the loess-covered uplands of Shansi, northern Shensi, and eastern Kansu, and the sparsely populated, semiarid steppes of Inner Mongolia....

A good reference page, even if it limits itself to Southern Illinois. Good information on slavery in the Land of Lincoln, and the struggle between kidnappers and underground railroad. Site has a search function and plenty of photos.

The push to ensure all students engage in challenging classes in high school has created new demands on high schools, including a demand to providing extra help for students who are behind in reading, mathematics, and advanced reasoning...

Learners will have completed a unit of forces and motion prior to the current unit of study on simple machines (lever, inclined plane, screw, wedge, pulley, wheel and axle). Students will review the functions and examples of simple...

Pope Sixtus V (December 13, 1521 - August 27, 1590), born Felice Peretti di Montalto, was Pope from 1585 to 1590. The subsequent administrative system of the Church owed much to Sixtus V. He limited the College of Cardinals to seventy;...