Math
http://www.teachingtables.co.uk/tm/tmgame/tgame2.html
http://www.softschools.com/math/subtraction/2_digit_subtraction/2_digit_subtraction_with_regrouping/
www.mathletics.ca
www.xtramath.org
http://mei.mathsheet.ninja/
Social Studies
kids.nationalgeographic.com/
teacher.scholastic.com/activities/globaltrek/
http://www.ducksters.com/science/ecosystems/world_biomes.php
http://kids.nceas.ucsb.edu/biomes/
http://www.sciencekids.co.nz/sciencefacts/countries.html
https://www.factmonster.com/countries
https://www.kids-world-travel-guide.com/
http://www.foodbycountry.com/
https://www.thecultureist.com/2014/11/28/31-traditional-forms-dress-around-world/
Language Arts
http://www.quia.com/rr/90027.html
http://www.harcourtschool.com/activity/clubhouse/index_pre.html
http://www.wordgametime.com/games/haiku-hero
Science
http://kids.nationalgeographic.com/kids/animals/creaturefeature/
http://a-z-animals.com/animals/
http://www.sheppardsoftware.com/content/animals/kidscorner/games/producersconsumersgame.htm
Other
http://www.bbc.co.uk/schools/typing/
http://www.northpole.com/account/login.asp
http://www.kidrex.org/
https://code.org/learn