http://www.ictgames.com/hickory4.html
http://www.oswego.org/ocsd-web/games/BangOnTime/clockwordres.html
http://www.oswego.org/ocsd-web/games/StopTheClock/sthec2.html
http://www.bbc.co.uk/bitesize/ks1/maths/telling_the_time/play/
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/time/index.htm
http://www.oswego.org/ocsd-web/games/BangOnTime/clockwordres.html
http://www.oswego.org/ocsd-web/games/StopTheClock/sthec2.html
http://www.bbc.co.uk/bitesize/ks1/maths/telling_the_time/play/
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/time/index.htm