Desmos.com

Here is a screen shot of Desmos.  This was taken from Desmos.com.  I use Desmos to create graphs that I can use on tests or project on the Smartboard.  These graphs have gridlines which makes it easier for students to read compared to a TI-84 emulator for Smartboard.  In addition, Desmos has some activities that students can do collaboratively.  This year, I hope to explore one or two of these activities.  This website is geared to high school students.  Let me know if there are any questions.