Fun games for students to play. Game cover a range of lessons from division to proportions to vocabulary. Optons are there to track student progress (for a fee).
Basic metric conversions game -- no frills, but it provides immediate feedback. Check out the other activity; there is a print out worksheet for students to complete afterward.
Choose two games with three levels of "pitches" : Identify the exponent in expanded form or identify the power. Examples are given, and players can play in "practice mode."