Unit+3+Lesson+2

http://www.primarygames.com/patterns/start.htm

http://funschool.kaboose.com/preschool/learn-abcs/games/game_crazy_pattern_machine_the.html

http://pbskids.org/cyberchase/math-games/pattern-quest/

http://www.ezschool.com/Games/PatternMatching.html