Try these online jigsaw puzzles. Add you quickest time to complete them to the Snow Blog.
http://www2.lhric.org/pocantico/1stgrade/snow/puzzles.htm
Other websites with fun educational games to explore:
http://www.weatherwizkids.com/
www.teachingtime.co.uk/ – to reinforce reading the time
www.mad4maths.com/kids/ – including multiplication games
www.mathplayground.com/games.html – various games