Math Games http://www.iboard.co.uk/teaching-tools/tool/12-games-ks1
Advent Calendar: http://www.santagames.net/calendar/index.htm
Fact Families http://www.fun4thebrain.com/addition/reindeercafeadd.html
Word Search http://www.abcya.com/christmas_word_search.htm
Fun Physics http://www.abcya.com/one_hundred_snowballs.htm
I love these games!