The McDougal Littel Textbook Series has many additional resources for extra practice. There is homework help, practice problems, practice quizzes and tests. To access these resources, follow the steps to sign-up on classzone.com located in the textbook tabs to the right of my webpage.
GeoGebra is an online applet, similar to a graphing calculator where you can graph functions, create shapes, use statistics, create tables, etc.
You can either download the program for free on your computer, or you can just use the applet online.
Below are some Apps that could be useful resources (All Free)
Edhelper.com has worksheets and activities that can help reinforce lessons at home.