Language Arts Spelling City: A great resource to practice and reinforce word study patterns!
ABCya: A collection of Language Arts, Math, and Content area games.
Math HCPSS Smart Pages: Everything you need to know about the Common Core Curriculum! This site also includes endless games and activities to reinforce math concepts taught at school. Cool Math Games: A great resource for interactive math, logic, and reasoning games! Cool Math 4 Kids: Another great resource for math games online.