Interactive Math Games http://www.mrnussbaum.com/mathgames.htm
Fun Math Games http://www.funbrain.com
Spy Fractions http://www.learnalberta.ca/Launch.aspx?content=%2fcontent%2fmesg%2fhtml%2fmath6web%2fmath6shell.html
Fraction Practice http://www.iknowthat.com/com/L3?Area=FractionGame
MORE Interactive Math Games http://www.spacetime.us/arcade/
Math Playground http://www.mathplayground.com/games.html
8th Grade Scope and Sequence (a fancy way of saying what is to be covered in the 8th Grade for Math) (pdf) http://www.utdanacenter.org/mathtoolkit/downloads/scope/scope8.pdf
NCTM Illuminations Lessons and Activities http://illuminations.nctm.org/
Eighth Grade Math Topics http://www.321know.com/grade8.htm
All Math http://www.allmath.com/
Cool Math for kids http://www.coolmath4kids.com/
Released TAKS Tests http://www.tea.state.tx.us/student.assessment/resources/release/taks/index.html
UT Dana Center 8th Grade Objective 1 Clarifying Activities (pdf) http://www.utdanacenter.org/mathtoolkit/downloads/activities/grade8/8_number.pdf
Scientific Notation Practice http://janus.astro.umd.edu/astro/scinote/scinoteClassic.html
3-D views http://www.fi.uu.nl/wisweb/en/
Math 8 TAKS formula chart http://www.tea.state.tx.us/students.assessment/taks/math/grade_8_math_chart.pdf