1. Definitions http://www.coolmath.com/reference/circles-geometry.html#The_radius_of_a_circle
2. circle game http://pbskids.org/cyberchase/games/circles/index.html
3. geometry games-all http://www.woodlands-junior.kent.sch.uk/maths/shape.htm
4. congruent triangles http://nlvm.usu.edu/en/nav/frames_asid_165_g_3_t_3.html?open=instructions
5. draw shapes and measure http://www.iknowthat.com/com/L3?Area=GeometryWorkbench
6. tools/ manipulatives http://nlvm.usu.edu/en/nav/topic_t_3.html
7. triangle quiz http://www.aaamath.com/geo318-triangle-angles.html#section2
8. triangle game http://www.crickweb.co.uk/assets/resources/flash.php?&file=triangles
Golf Game--angles http://www.tvokids.com/framesets/play.html?game=73
Bowling Game--angles http://www.tvokids.com/framesets/play.html?game=18
Soccer Game http://www.tvokids.com/framesets/play.html?game=130