13 December, 2013
Volume 18 No. 50
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In This Issue

Apply for IAS/PCMI Summer 2014

NBA Math Hoops App

Snow Day Calculator


Online PD

Orientation Sessions

Problem Based Learning Courses

Graduate Credit:
Mathematics Teaching and Learning Certificate

Master's Degree


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Apply for IAS/PCMI Summer 2014


Does any rectangle have perimeter and area of the same numerical value?

Can the plane be tiled with kites and chevrons?

In how many ways can 1/2 be written as a sum of unit fractions?

Come investigate these questions — and find out how they are related — at the Park City Mathematics Institute (PCMI).

A program of the Institute for Advanced Study (IAS), PCMI has just begun accepting applications for the 2014 Summer Session of the IAS/PCMI Secondary School Teachers Program (SSTP).

Participating teachers receive full support and a stipend during this residential program, which takes place in Park City, Utah, from June 29 - July 19, 2014. Six quarter-credits of 400-level mathematics are available from the University of Washington.

Beyond the mathematical foci on fractions, tilings, and geometry, SSTP participants will also consider research about productive discussions and reflect upon how to facilitate them. Learn more about the SSTP by visiting


PoW taking place: math problem-solving moment of the week

"We had a lot of younger problem solvers this week, and the submissions I've chosen to share reflect that. Nell L. and Katie L.'s solutions are notable because each made a mistake in their first submission. But after looking at the answer that we provide, they found their mistake and revised their solutions, doing some good thinking...."
- Annie, commenting on the Geometry PoW's Latest Solution

NBA Math Hoops App


Calling all ballers and scholars: the NBA Math Hoops board game has gone mobile!

Freely available for both iOS and Android phones and tablets, NBA Math Hoops' app challenges students to build their own teams out of the best National Basketball Association (NBA) and Women's National Basketball Association (WNBA) players in the game.

As a shot clock winds down, students do math in order to let their personally drafted pro stars take shots based on those NBA and WNBA players' real shooting percentages. Sink buckets, and the app unlocks trophies. The NBA Math Hoops app also lets students track their progress on national leaderboards, which show how they stack up compared with the rest of the country's basketball fans.

First featured in these pages last June, NBA Math Hoops has since posted test and survey data about their game's impact on students, a map of US schools playing the game, and feedback from teachers and students in their own voices:


Now taking place: math education conversation of the day

"There are contradictions in the newly released guidelines for graphing calculators.... There are some other surprises in this document: 'complete sentences should be used to support results so that mathematical reasoning can be easily interpreted.'"
- Meg, posted to the secondary (grades 9-12) discussion group of the Association of Math Teachers of New York State

Snow Day Calculator


Wishing for more snow-bound time at home this holiday season?

Just enter your ZIP code into snowdaycalculator.com, along with the number of school days you've already lost due to inclement weather. The Snow Day Calculator analyzes this information in light of the most recent weather data from Weather.gov to predict the probability of an early dismissal, or no school, for your next two days.

The manual version of the calculator lets you take into account factors such as

  • school in mountainous area (yes or no)
  • leniency of administration (easy, okay, or harsh)
  • hype for a snowday (0, 1, 2, or 3)

Creator David Sukhin originally developed his predictive calculator as a middle school student. He recently added a feature that lets you join to receive predictions specific to your school:



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