Many fun games for practicing facts. http://www.multiplication.com/
Fishy Fractions - You will have to register for this one. It is a fun way to practice. Make sure you choose the correct grade level. http://www.iknowthat.com/com/L3?Area=FractionGame
Fraction game http://www.learningbox.com/fractions/index.html
Equivalent Fractions http://learningwave.com/lwonline/fractions/equivalent.html
Study Island http://www.studyisland.com
This site has a great game to play. Try it out. Moon Phases
This site has a great description of the moon phases, a couple of great activity ideas, and awesome images of the moon phases. NASA Space Place
Check the animation for the phases of the moon. Watch the straight line that indicates the part of the moon that is visible to the Earth. Compare that to the drawing of the phases of the moon. http://kids.niehs.nih.gov/lunar/home.htm#moon