This website provides a teacher with a lot of information, not only for their own education regarding a graphing calculator, but also provides lessons and activities to use in the classroom. All the information for how to do something on the calculator is step-by-step and is accompanied with screen shots, which are very helpful to ensure that you are where you need to be.

This website has a lot of similarities to the NCTM Illuminations, providing applets, lesson plans and the ability to search everything using a variety of categories. To top off all the great activities and lessons, they are all FREE! Shodor also listens to teachers' suggestions regarding activities to be added or ways to update the existing functions.

These activities range from online applets, interactivities, and lesson plans. Everything on this website is free! You can use these through a whole class discussion or give the students the website and have them explore themselves using an applet. The activities can be easily searched through grade level or through the standards.

I have used this many times in my classroom and made the website available to my students for review for a test. I like the fact that many things on this website are free, but also the all the answers are available to the free worksheets. I have not explored the free trial and what that provides, but the free information covers many topics and levels across mathematics.

This is not necessarily specific to education, but it is an awesome tool to use the in the classroom. The students can clearly see how much time is left in the activity and it is very easy to use. If you have sound available it rings at the end of time, but if you don't there is a visual change in the screen to indicate the end.

This website is an ask and answer website for math questions. Sometimes the topic you need is not available, so it makes it difficult to find an answer to your question sometimes. Or if your topic is available it is not the aspect that you were looking for.

This website is a great source of information on a broad range of topics, but the information is not always factual.

This website has information available for all subject areas and includes worksheets and puzzles. The problem I have with this website is that you must pay in order to create your own worksheets from the bank of questions. There are "free" worksheets available, but sometimes the answers are not available, or some of the problems may be blocked out.