Angles

http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41448 - Identifying Angles
http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41550 - Classifying Angles
http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41554 - Label Angles
http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41553 - Intersecting Lines
http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41397 - Label Equivalent Angles

Bar Graphs

http://www.amblesideprimary.com/ambleweb/mentalmaths/grapher.html - Bar Graph Activity
http://nces.ed.gov/nceskids/createagraph/default.aspx - Create a Graph
http://www.amblesideprimary.com/ambleweb/mentalmaths/grapher.html - Grapher

Coordinates

http://www.oswego.org/ocsd-web/games/BillyBug/bugcoord.html - Billy Bug

Fractions

http://www.amblesideprimary.com/ambleweb/mentalmaths/fracto.html - The Decifractator
http://www.factmonster.com/math/knowledgebox/fractioncafe.html - Fraction Cafe

Higher Level Learners

http://www.prongo.com/stock/index.pl - Wally's Stock Ticker (play the stock market!)
http://www.kidsplaypark.com/games/farm/ - Farm Stand Math (multiplication and addition combined)

Numbers & Functions

http://www.amblesideprimary.com/ambleweb/mentalmaths/Calculator.html - Online Calculator
http://www.amblesideprimary.com/ambleweb/mentalmaths/countersquare.html - Number Grid (with movable counters)
http://www.primarygames.co.uk/pg2/splat/splatsq100.html - Splat Square - Interactive Number Grid
http://www.amblesideprimary.com/ambleweb/mentalmaths/supersequencer.html - Number Sequencer
http://www.amblesideprimary.com/ambleweb/mentalmaths/guessthenumber.html - Guess the Number!
http://www.arcademicskillbuilders.com/ - Math Games (multi-player interaction)
http://www.prongo.com/madmath/ - 3 Digit Adding
http://www.oswego.org/ocsd-web/games/Mathmagician/cathymath.html - Math Magician Games
http://www.4kids.org/games/ - Math Games

Protractor

http://www.amblesideprimary.com/ambleweb/mentalmaths/protractor.html - What's my Angle?
http://www.amblesideprimary.com/ambleweb/mentalmaths/angleshapes.html - Angle Activities

Video Clips

http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Absolute%20Values - Absolute Value Movie
http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Average - Averages Movie