Geometry Working Group

Monday, July 9

We began by getting to know everyone today, hearing about fabulous feats and interests of members.

  • Christian Jensen is entering a new position and will be teaching pre-calculus so will be working on items related.
  • Troy Jones talked about writing optimization problems and uses Geometer's Sketchpad.
  • David Evans wants to investigate using more manipulatives in the classroom and G.Sketchpad. He wants to move away from formalized proofs.
  • Kris Koch is our Internet person. She is interested in Dissection problems and is in the process of collecting those. Kris is a "Joyce Frost groupie"
  • Joyce Frost makes up "puzzles to pack space" and has created about 30 different ones. She has also been corresponding with George Escher by mail regarding such puzzles.
  • Sue Hannon is looking at Geometry in various occupations and is also accepting a new position at a Vocational and Career facility as an academic math support teacher. Sue is also interested in fractal geometry and origami.
  • Tim Giesbrecht is involved heavily with Geometer's Sketchpad and is interested in writing lessons in Sketchpad from introductory geometry to analytical geometry.
  • Jim King teaches teachers and writes explorations among other things. He has a wide selection of "hats." Jim is interested in problems involving center of mass and projected geometry.
  • Philip Mallinson specializes in geometric tessellations and polyhedra and is one of our fearless facilitators.

After discussing a number of topics, the group decided to focus on two. One will be the development of lessons about the geometry of 3-dimensional space that underlies Joyce's hinged, space-filling puzzles. The other will be the development of lessons about the connections between geometry, ratios, and centers of mass. This would include the building of a mobile.

Kris and Joyce will work on the first project. Most of the rest of the group will work on the second. Sue is reading about applications of geometry.

Sue Hannon

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This material is based upon work supported by the National Science Foundation under Grant No. 0314808.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.