S.H.
Here's some links, per my daughter's 1st Grade Teacher
(my daughter being 6.5 years old and just completed 1st Grade and entering 2nd grade as well, in the Fall) These are "free" educational games a child can play on the computer:
http://pbskids.org/readingrainbow/
http://www.brainpopjr.com/games/
http://www.bbc.co.uk/scotland/education/sysm/landscapes/h...
http://science.pppst.com/matter.html
http://www2.mcdaniel.edu/Graduate/TI/pages/LEWIS/matterwe...
http://www.starfall.com/n/level-a/learn-to-read/play.htm?f
http://www.bbc.co.uk/schools/numbertime/
http://www.usmint.gov/kids/games/
http://www.oswego.org/ocsd-web/games/Mathmagician/cathyma...
http://www.abc.net.au/countusin/games/game8.htm
http://www.abc.net.au/countusin/games/game10.htm
http://pbskids.org/lions/games/ears.html
http://www.fossweb.com/modulesK-2/SolidsandLiquids/index....
http://www.rock-hill.k12.sc.us/teachers/yres/lphelan/webq...
http://www.sciencekids.co.nz/gamesactivities/gases.html
http://www.schools.pinellas.k12.fl.us/educators/tec/Davis...
http://www.bbc.co.uk/schools/scienceclips/ages/6_7/groupi...
Hope this helps, all the best,
Susan