NASA for high school students http://www.nasa.gov/audience/forstudents/9-12/features/index.html
National Geographic http://www.nationalgeographic.com
PH Algebra 1 Textbook Online Enter User ID: TXAlgebra1 Enter Password: txmath https://www.pearsonsuccessnet.com/
Math Models textbook, MathMatters 3, Online Select the left, 2006, Edition Key Code is DA0A2E279B http://www.mathmatters3.com
Algebrahelp.com Graphing Calculator (it helps to read their directions before you get started) http://www.algebrahelp.com/calculators/function/graphing/
Texas Education Agency Texas Essential Knowledge & Skills (TEKS) Released & Practice TAKS Tests Parent & Student Resources http://www.tea.state.tx.us/