Math:
Base Ten Fun
Base Ten Bingo
Marble Math
Alien Addition
Fishing Subtraction
Shark Place Value
Math Playground
Balloon Pop Subtraction
ABCya Tangrams
How Much? How many? - Greg Tang story problems
Numtanga - Greg Tang number sense
Puzzles and Problem-solving:
ABCya
Internet Safety Games
Language Arts: Starfall
BrainPOP phonics games
Library Vocab Flippity
Call Number Fun Quizlet
Big Dinaosaurs by 
Big Pets by 
Coral Reefs by 
Great White Sharks by 
Kings of the Oceans by