Here are some helpful websites:Online Graphing Calculator:1. Click on Download2. On the next page choose the first option - TI-83 Plus SDK3. Click save, and save it somewhere you can easily find it, like on your Desktop or in My Documents4. After it downloads, find, and double-click the downloaded file to run the Setup. Agree to everything, but you do not have to restart your computer at the end.5. You can now run the program. It will open, go to File - New - choose TI-83 Plus SIlver Edition. Then Select Debug-Go.Printable Protractor Image:Online Scientific Calculator:The views and opinions expressed in this page and site, unless specifically noted, are strictly those of Lanzafama, Melissa. The Caldwell-West Caldwell School District is not responsible and has no control over the redirected links that take users off the www.cwcboe.org site.