https://www.mathschase.com
http://coolmath.com/
http://www.math-drills.com/
http://ca.ixl.com/math/grade-4
http://www.softschools.com/grades/4th_grade/math/
Hangman Division Instructional Video http://screencast.com/t/toH5ZXK9BH
For rounding: http://mrnussbaum.com/roundingmaster/
http://mrnussbaum.com/mathcode/
http://www.abcya.com/fourth_grade_computers.htm
www.multiplication.com
Division Games:
https://www.sheppardsoftware.com/mathgames/menus/division.htm
http://interactivesites.weebly.com/division.html
http://www.softschools.com/grades/4th_grade/math/
Hangman Division Instructional Video http://screencast.com/t/toH5ZXK9BH
For rounding: http://mrnussbaum.com/roundingmaster/
http://mrnussbaum.com/mathcode/
http://www.abcya.com/fourth_grade_computers.htm
www.multiplication.com
Division Games:
https://www.sheppardsoftware.com/mathgames/menus/division.htm
http://interactivesites.weebly.com/division.html
Wordclouds:
http://www.abcya.com/word_clouds.htm
Language Arts:
http://www.internet4classrooms.com/skills-4th-langbuilders.htm
http://www.eduplace.com/tales/
http://www.wordle.net/
http://www.abcya.com/fourth_grade_computers.htm
http://www.wiseoldsayings.com/ultimate-word-games-guide.php
Current Events:
http://www.dogonews.com/
http://www.timeforkids.com/
http://kids.nationalgeographic.com/kids/stories/
http://www.sciencenewsforkids.org/
http://htekidsnews.com
World Geography and Mapping:
http://mapzone.ordnancesurvey.co.uk/mapzone/gamespages/treasure.html
http://kids.nationalgeographic.com/kids/places/
Habitats:
http://www.ucmp.berkeley.edu/exhibits/biomes/index.php
http://www.bbc.co.uk/schools/scienceclips/ages/8_9/habitats.shtml
http://www.mbgnet.net/sets/index.htm
http://kids.nationalgeographic.com/kids/animals/creaturefeature/
http://www.abpischools.org.uk/page/modules/humans_animal_habitats/activity.cfm?coSiteNavigation_allTopic=1
Keyboarding Skills:
www.typing.com
http://www.computerlabkids.com/keyboarding.htm
https://www.typingclub.com