Customizable Inscribed Angle Geometry Manipulative

This is a 6" diameter fully customizable Geometry manipulative that can be useful in the teaching and learning about the properties of angles, inscribed angles, central angles, arc lengths, and arc measures. Use with a rubber band or two to discover the relationship between inscribed and central angles . Holes for small nails are equally spaced around the circumference along with one in the center. An STL file of a 6" disk that printed well is also included if you don't want to mess with the customizer.

If planning on using this to complement lessons on the subject, print a classroom set so each student can explore, or at least print enough so that each table group can share one.

Additional materials needed:

rubber bands
small nails ( i used some 5/8" nails I had in my workshop with 0.8mm holes) to tap into holes
hammer

If you like this, check out my other objects, including the non-customizable version of this manipulative at: http://www.thingiverse.com/thing:2179477.