Selected items from previous primary math contests.
For a student version, click> http://www.geogebratube.org/student/c7281/m65822/ylyy .
Check these videos for copying and modifying files in GeoGebraTube:
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[*]http://youtu.be/f7HfIKWtvWk
[*]http://youtu.be/1-aw0Vhc1pk
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