BOUWSELS
http://www.fi.uu.nl/toepassingen/00249/toepassing_rekenweb.html
TAFELS
http://www.onlineklas.nl/flash/Tafels%20oefenen.html
http://www.multiplication.com/flash/PattyPaint.swf
http://www.multiplication.com/flash/ants.swf
http://www.multiplication.com/flashgames/CarWash.htm
SYMMETRIE
http://schoolbordportaal.nl/files_sb/programma-handleiding-48/Symetrie.swf