This site hosts a wealth of reference information on probability and statistics, from basic history and definitions to advanced applications. Topics covered include basic probability, various types of analysis, regression, distributions, and more. As with all the MathWorld sites, these have excellent notes and diagrams, but are designed for the very advanced student. This resource is part of the Teaching ... Full description.

Providing reference and review material on many math topics, this site also features practice exams, a message board, reference tables, and a list of recommended books. Over 2,500 pages give short lessons on algebra, trigonometry, calculus, and matrix algebra. The explanations are complete and extensive, flow well from one to the next, and include plenty of sample exercises. This resource is part ... Full description.

The algebra index of the extensive S.O.S.Math site has lessons and reference material on units of conversion, complex numbers, equations, and much more. Each section features a concise review, notation, examples, and practice problems. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/ Full description.

The matrix algebra index begins with applications and properties of matrices, works through systems of linear equations, explains determinants (including Cramer's Rule), and finishes with lessons on eigenvalues and eigenvectors. Each section includes an introduction to the topic and example problems as well as notes, tables and diagrams. This resource is part of the Teaching Quantitative Skills in ... Full description.

The trigonometry index of S.O.S. Math features a table of trigonometric identities, lessons on functions and formulae, and a section of exercises and solutions. Topics also include the derivatives of trigonometric functions and hyperbolic trigonometry. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/ Full description.

This site features a menu of lessons and reference material on calculus concepts. Featured are several definitions of the derivative, treatments of discontinuity, and discussion of logarithms, integration, and antiderivatives. The sections are presented with clear notation and examples. Full description.

Beginning with a general review, this site provides a good refresher on basic trig identities, functions and angles. Good diagrams for unit circle and triangle trigonometry. Full description.

Brandeis hosts several pages demonstrating the involvement of calculus in biology. This site gives a short explanation of the partial derivative of two variables, using illustrations and various levels of magnification to demonstrate. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/ Full description.

A handy reference on basic geometry formulas, this site covers distance, area, perimeter, and volume. Simple, straightforward notation, no diagrams or lessons. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/ Full description.

Follow this lesson to review basic exponent manipulation. Worksheets, further lessons, and lists of resources are also available. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/ Full description.