The Wizard of Osgood

Reading Practice:

http://www.abcya.com
http://www.starfall.com
http://www.pbskids.org

http://www.tumblebooks.com

http://www.storylineonline.net/
http://www.growupreading.org/index.php

http://www.mothergooseclub.com/index.php

Math Practice:

http://www.internet4classrooms.com/skills-k-mathbuilders.htm

http://www.everydaymath.com

Science:
http://www.switcheroozoo.com/
http://kids.nationalgeographic.com/

Mouse Practice:

http://minimouse.us/croccannons.html

http://www.abcya.com/kindergarten_computers.htm

http://www.lego.com/en-us/games

Internet Safety:

http://www.netsmartzkids.org/

For Fun:
http://www.funbrain.com/
http://www.highlightskids.com/
https://www.gonoodle.com/