Park City 2011: Problem Set #7

Apologies for the late posting of today’s set.  There were some last-minute edits to bad jokes about the US Women’s Soccer team.

PCMI 2011 Day 7 (July 13, 2011)

A brief description of the “salt activity”:

  • Get a big salt dispenser, a box, a paper cup, and a cardboard cutout of a triangle.
  • Put the triangle on the upside-down cup inside the box.  This steadies the triangle.  Make sure it is flat.
  • POUR SALT everywhere until the triangle is completely covered with salt.  More.  Put as much salt as you possibly can on the triangle.
  • Observe.
  • Ideally, do it over again with more different triangles to help understand what is happening.

About Bowen Kerins
Bowen is a mathematics curriculum writer. He is a lead author of CME Project, a high school curriculum focused on mathematical habits of mind. Bowen leads professional development nationally, primarily on how math content can be taught with a focus on higher-level goals. Bowen is also a champion pinball player and once won $1,000 for knowing the number of degrees in a right angle.

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