Sophia Learning
Sophia: Correcting Double Negatives
This lesson discusses how to recognize and correct a double negative.
The Write Place
Literacy Education Online
Literacy Education Online (or LEO) is a great place to start if you need help with your writing. The homepage is organized around kinds of problems or questions you might have concerning your writing. Find your problem, click on the...
Other
Brown Math: Remembering Trig Identities
Faced with a large number of trigonometric identities, students tend to try to memorize them all. This site the emphasis is on understanding how the functions work and on memorizing only about a half dozen of them - all the others work...