**Online Educational Resources**

- Creative Commons - Choose a creative commons license.
- Merlot - Multimedia educational resource for learning and online teaching.
- OER Commons - Find free-to-use teaching and learning content from around the world.

*Open and Online Mathematics Textbooks:***PreAlgebra**

PreAlgebra - College of the Redwoods

PreAlgebra - By Cheryl Wilcox

PreAlgebra - Texbook by Ross Ruger

Fundamentals of Mathematics - Connexions

**Elementary Algebra**

Elementary Algebra - Flatworld Knowledge Textbook by John Redden.

Elementary Algebra - Connexions by Ellis and Burzynski.

Elementary Algebra - College of the Redwoods

Free Algebra Study Guide - eBook in epub format (John Redden)

Beginning and Intermediate - by Tyler Wallace

A First Book in Algebra - Many exercises by Boyden

**Intermediate Algebra**

Intermediate Algebra - Flatworld Knowledge Textbook by John Redden.

Intermediate Algebra - College of the Redwoods.

**Liberal Arts Math**

Math in Society - A survey of mathematics for the liberal arts major by David Lippman

**Statistics**

Introductory Statistics - Flatworld Knowledge Textbook by Shafer/Zhang.

Collaborative Statistics - Open Statistics Textbook by Barbary Illowski.

OpenIntro - An online statistics intro.

Online Statistics - Online statistics book in the public domain.

Statistics Videos - Elem. Statistics video compendium and course by J. Sullivan.

**Trigonometry**

Trigonometry - Mecmath by Michael Corral. [ Trig 101 based on this book ]

College Trigonometry - Open Source Precalculus by Stitz/Zeager

TrigCheatSheet.com - Online mobile-friendly cheat sheet.

**Precalculus**

Precalculus Project - Open Source Precalculus by Stitz/Zeager

Precalculus: An Investigation of Functions is a free, open textbook covering a two-quarter pre-calculus sequence including trigonometry. Lippman/Rasmussen

**Calculus**

Contemporary Calculus - by Dale Hoffman

Calculus - by David Guichard and Friends

Elementary Calculus: An Infinitesimal Approach - H. Jerome Keisler

Beyond Calculus - Video based eBook by Jake Chipps.

Calculus - by Gilbert Strang offered at MIT

Calculus I, II, III - by Marsden and Weinstien Published 1985 by Springer-Verlag

Mooculus - Online calculus course with video and textbook.

**Higher Mathematics**

Mathematics for Theoretical Physics - Mathematical concepts used in theoretical physics by Jean Claude Dutailly- Mathematics for Computer Science - Lehman, Leighton, Meyer
- Online Math Textbooks - another nice big list of free resources.
- A First Course in Linear Algebra - by Robert A. Beezer
- A Beginner's Guide to Mathematica - Richard Sorbello, UWM Physics Dept
- Approved for mainstream courses - American Institute of Mathematics
- Topology Notes - by Christopher Cooper
- Introduction to Statistical Learning using R - free ebook.

**Algebra Help**

- Virtual Math Lab - West Texas A&M University study guide.
- openAlgebra.com - An Algebra Study Guide with more solved problems and extra videos.
- Mathispower4u - Nice video tutorial by James Sousa
- PatrickJMT - clear and voluminous math tutorial videos.
- Symbolab Math Solver - Online step-by-step math solver.

**Mathematics**

- Wolfram Alpha - Online computational knowledge engine.
- Desmos Graphing Calculator - Free online calculator with nice sharing features.
- Open Graphing Calculator - Free open source online grapher
**with Calculus features**. - Plot.ly - Free online chart/plot creator with sharing features.
- MacTutor History of Mathematics - History of mathematics archive.
- E-Books Directory - Mathematics E-Books for free online viewing and/or download.
- Open TextBookStore - open textbooks that are adoptable and ready to use in a college classroom.
- MathBlogging.org - Compilation of mathematics related blogs.
- JDS Mathematics - Dynamic Exercises with solutions in many subjects.
- Interactive Math - Interactive lessons on various topics.
- Top Spy Secrets - Cipher activities for kids.

**Computer Science**

- Flash & Math - Actionscript 3 tutorials.
- C++ Language Tutorial - A nice C++ resource.
- HTML: The Living Standard - A technical specification for web developers.
- Math Unicode Entities - Using math symbols in HTML.
- Android Cookbook - A crowd sourced Android Programming book.
- Google App Engine Tutorial - A nice TODO app.
- Nature of Code - Daniel Shiffman - Programming strategies and techniques behind computer simulations of natural systems.
- Applied Discrete Structures - Al Doerr and Ken Levasseur
- Dart Programming eBook -
**Dart: Up and Running**is a practical guide that introduces the Dart programming language and teaches you how to build Dart applications. - Eloquent JavaScript - A modern introduction to programming by Marijn Haverbeke (license)
- JavaScript Guide - Mozilla Developer Network
- Best Sites to Learn Programming
- Getting Started with Android Studio - a pretty good tutorial!

**Extras**

- MathJax - Open source JavaScript display engine for mathematics [ examples ] [ commands ]
- writeLaTex - Online LaTex editor.
- Z-Type - fun free typing game.
- Education Portal - Nice site with good video explanations.
- NumberPhile - Videos about numbers and stuff.
- Copyright Term and the Public Domain
- Problem Attic - Free Worksheet Generator
- 300 Awesome Free Things