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, and part of the author team of the Illustrative Mathematics curriculum series. 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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