**Eckelkamp**

Khan Academy videos (Intro to Geometry and Geometry)

Geometry Practice Problems by Topic

**Pelster, MA**

**Pelster, Michael**

Khan Academy videos (Algebra)

**Snider**

Algebra 1 & Advanced Algebra videos

**Steffens**

Calculator.Com

Directory of online calculators for finance, business, science, calculus, arithmetic, geometry, etc. Also, includes calculators for cooking, hobbies, and health. "Some solve problems, some satisfy curiosity, and some just for fun."

Subject: Mathematics--Calculators and Tables; Calculation & Conversion Tools

A Dictionary of Units

"Provides a summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), together with the appropriate conversion factors needed to change them into a 'standard' unit of the S.I. (Système international d'unités)." Search by category (length, mass, density, energy etc.), or alphabetically.

Subject: Mathematics--Calculators and Tables; Calculation & Conversion Tools

Electronic Statistics Textbook

This is a complete statistics textbook, available on the web and for downloading to your computer, developed by the makers of the statistics computer program "Statistica."

Subject: Mathematics--Probability and Statistics

Fractal Geometry

Introduction to fractals for students without advanced math skills. Covers Mandelbrot and Julia sets; basic concepts, rules, and functions; and fractals in literature, music, history, economics, architecture, and nature.

Subject: Mathematics--Calculus and Advanced Mathematics; Physics; Mathematics--Geometry and Trigonometry

Math2.org (Formerly Dave's Math Tables)

Contains numerous links to mathematical tables for various subjects: general math, algebra, geometry, trigonometry, calculus, and advanced topics such as Fourier series and transformatitons. It provides formulas, diagrams and proofs which are all very useful in mathematics.

Subject: Mathematics--Calculators and Tables

Math Mistakes Info

This site shows examples of common mistakes along with corrections and brief explanations to help high school and college/university student improve math skills. This site also includes math facts, flash card feature and other math links.

Subject: Mathematics--Calculus and Advanced Mathematics; Mathematics; Homework Help--Subject Area Help--Math

Random.org

Explanation of uses and generation of random numbers. Web-based random coin flip using US, European, and Caribbean currencies.

Subject: Mathematics--Probability and Statistics

Stat Trek

This site about probability and statistics offers tutorials, online calculators, and a comprehensive glossary of statistics terms.

Subject: Mathematics--Probability and Statistics