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Learn Free on the Web
Khan Academy has free web tutorials, videos, and quizzes on Math subjects from Basic Counting all the way to Calculus, Differential Equations, and Linear Algebra.
Need some help with typing up a Math assignment, using LaTex, or inserting your Math into other types of documents? Check these free online tools out...
CodeCogs Latex Editor
Use either LaTex or their graphical interface to output to a GIF, HTML code, URL, etc.
Type in plain language and output the LaTex.
Q&A Sites for Mathematics
Chances are your question has been asked before! Check these sites out to see a variety of proofs of various problems in various methods, and see how they've been voted up and down by the Mathematics community.
Math Stack Exchange
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. Join them; it only takes a minute:
Research-level Mathematics questions and answers. Answerers are given reputation scores by the cumulative voting-up-and-down of their answers over time so that you can judge which answers are the best. Many of the top mathematicians in the world use MathOverflow. Click on Users to see!
A Video about Evaluating Web Sources
Evaluating Web Pages
CHECKLIST FOR EVALUATING A WEB PAGE:
- Identify the author and the author's expertise on the topic.
- Verify the facts, statistics, or quotes on the web page in another source.
- Identify the agenda of the page: are they selling something or promoting a point-of-view that benefits them?
- Check to see when the page was last updated. If you can't find a date, consider using a different source.
DO THE ABOVE BECAUSE:
- Most people don't know what they are talking about.
- Many people will make up facts, misrepresent facts, or leave out facts in order to support their position.
- People will tell you anything if money or power is somehow involved.
AND IN THE END:
- Learn to think for yourself and do not rely on gathering other people's opinions posted on the internet.