By tpm | February 6, 2012
For the last few weeks, I’ve been scouring the web with Google, listening to reader suggestions, and searching through others’ lists of resources, trying to find the top free math resources online. I was not surprised to learn that there are a ton of free math resources out there. Sorting through them has been no small task, and while I’d love to pretend this list is all-inclusive, I’d be a liar if I tried to make that claim for a number of reasons.
First, there are so many resources out there that I haven’t come close to seeing them all. Second, I tried not to be too repetitive with genres. For example, there are a number of cool graph/chart makers online, but I tried to stick to a single resource of each type as much as possible. Third, and most importantly, I was very biased in the process of making this list. I went with my favorites. So if you disagree with my rankings, or if you have suggestions of your own that I omitted, please add them in the comments below this post.
Wolfram’s computational knowledge can’t be beat as a resource for students and teachers. It’s my top choice for the best free resource available on the web. The Pro version was just announced earlier this week.
2. Khan Academy
Video lessons on any and every mathematical topic. Khan’s videos aren’t always the most polished, but the vast array of topics and thorough explanations make up for it.
The best free online graphing calculator I’ve ever seen, now available in an iPad optimized format.
National Library of Virtual Manipulatives created by Utah State has a wealth of interactive activities for K-12.
I’m sure I’ll catch some heat for this one, especially so high, and I feel like I have to offer an explanation. For all that’s wrong with Wikipedia from an educational standpoint, there’s a heck of a lot more that’s right. For example, check out the entry on the Pythagorean theorem. The theorem is explained in far more detail and using far more approaches than any textbook I’ve come across. Additionally, the article itself only scratches the surface. The citations section at the bottom of Wikipedia articles is often a gold mine. The Pythogrean Theorem the article currently has 75 references, many of them to books and research publications, each of which would be a great place to go for a student doing a research paper. Rather than banning students from Wikipedia, I’d encourage them to learn to read it with careful scrutiny. After all, students need to develop a skeptical eye is for consuming information in the 21st century.
Free piece of dynamic geometry and algebra software that will remind you of Geometer’s Sketchpad (with a little something extra, like algebra and statistics).
Apple’s software gives quick access to a wealth of free video lessons such as MIT Open Courseware.
Google’s 3D drawing software.
Activities from the National Council of Teacher’s of Mathematics
Free access to videos, lecture notes, assignments and solutions in over 2 dozen different classes at one of the most prestigious universities in the world? I think it qualifies for this list.
11. Google Books
Google’s online library of books. Just search “math” and you’ll be hitting the “books” before you know it.
Activities, apps and upgrades for Texas Instruments graphing calculators.
Activities, tutorials, and upgrades for Casio graphing calculators.
Well mapped out video help designed specifically for math, science, and test prep. Premium features cost, but the basics are free.
Easy access for to the National Repository of Online Courses for students and teachers.
From the leader in test prep, a free tool to improve your ACT or SAT score.
Microsoft’s free math software offers a wealth of functionality.
18. Cool Math
Games, games, and more math games.
Very nice animated lessons for students.
Over 2600 personalized and standards aligned study guides from which to choose.
Just Math Tutorials, by Patrick.
Attractive chart and graph maker.
3D grapher that you can interact with right in your browser.
24. PhET Simulations
Virtual simulations of phenomenon like projectile motion.
Quick and easy way to make worksheets.