2009-2010 Problem of the Week Calendar

Links to the Packets, Activity Series, and Online Resources (and more!) are available from the individual problem page (linked from the titles below).

Since these problems were Current in the 2009-10 school year, access is restricted to teachers with a Class Membership or higher. More information is available on our Pricing Guide.

If you have a Class Membership or higher, you can also view all of the 2008-09 problems.

Math Fundamentals

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  Aug 31 Pooling Tips   Sep 13 Sep 17
  Sep 14 Heidi's Hometown   Sep 27 Oct 1
  Sep 28 Greta's Garden   Oct 11 Oct 15
  Oct 12 Buy the Numbers X Oct 25 Oct 29
  Oct 26 Jason's Piggy Bank   Nov 8 Nov 12
  Nov 9 Sundaes X Nov 22 Nov 26
  Nov 23 Just the Facts   Dec 6 Dec 10
  Dec 7 All Aboard!   Dec 20 Dec 24
  Dec 21 Holiday Ornaments   Jan 10 Jan 14
  Jan 11 How Old is Mia?   Jan 24 Jan 28
  Jan 25 Bobsled Sums X Feb 7 Feb 11
  Feb 8 Common Cents   Feb 21 Feb 25
  Feb 22 Pauline the Plumber X Mar 7 Mar 11
  Mar 8 Fish in a Barrel   Mar 21 Mar 25
  Mar 22 Odds vs. Evens   Apr 4 Apr 8
  Apr 5 Assembly Seating X Apr 18 Apr 22
  Apr 19 Clock Work   May 2 May 6
  May 3 A Pound of Tea X May 16 May 20
  May 17 Missing Pages   May 30 Jun 3
  May 31 Trapezoid Teatime   Jun 13 Jun 17

Pre-Algebra

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  Aug 24 The Oracle's Oration   Sep 6 Sep 10
  Sep 7 At Least a Mile   Sep 20 Sep 24
  Sep 21 Kaytee's Contest   Oct 4 Oct 8
  Oct 5 Watch Where You Step!   Oct 18 Oct 22
  Oct 19 Birthday Line Up X Nov 1 Nov 5
  Nov 2 Chirp! Chirp! X Nov 15 Nov 19
  Nov 16 A Cranberry Craving X Nov 29 Dec 3
  Nov 30 Shortcut Savings   Dec 13 Dec 17
  Dec 14 Time is Power   Jan 3 Jan 7
  Jan 4 Two Toss   Jan 17 Jan 21
  Jan 18 The Oracle's Crowns   Jan 31 Feb 4
  Feb 1 A Snowy Driveway   Feb 14 Feb 18
  Feb 15 Cara's Cookies X Feb 28 Mar 4
  Mar 1 Eight Squares on a Table   Mar 14 Mar 18
  Mar 15 Account Balances   Mar 28 Apr 1
  Mar 29 Spring Garden Planning X Apr 11 Apr 15
  April 12 Shelvin's Scores   Apr 25 Apr 29
  April 26 Holding Pattern   May 9 May 13
  May 10 Val's Value X May 23 May 27
  May 24 Fences for Fido and Friends   Jun 6 Jun 10

Algebra

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  Aug 31 Mind Reading   Sep 13 Sep 17
  Sep 14 Eduardo's Equation Challenge   Sep 27 Oct 1
  Sep 28 Are You Ready for Some Football?   Oct 11 Oct 15
  Oct 12 Take Me Out to the Ballgame X Oct 25 Oct 29
  Oct 26 Apple Orchard   Nov 8 Nov 12
  Nov 9 From Here to There   Nov 22 Nov 26
  Nov 23 A Surprising Sequence   Dec 6 Dec 10
  Dec 7 Ration Ratios   Dec 20 Dec 24
  Dec 21 Texting 1, 2, 3   Jan 10 Jan 14
  Jan 11 Are You Positive?   Jan 24 Jan 28
  Jan 25 Line Logic   Feb 7 Feb 11
  Feb 8 Building a Bakery   Feb 21 Feb 25
  Feb 22 What Time Is It? X Mar 7 Mar 11
  Mar 8 Lettuce for Sale   Mar 21 Mar 25
  Mar 22 Triangle Possibilities   Apr 4 Apr 8
  Apr 5 Fraction Action!   Apr 18 Apr 22
  Apr 19 Marathon Mitch   May 2 May 6
  May 3 Buried Treasure   May 16 May 20
  May 17 What's the Point?   May 30 Jun 3
  May 31 Many or Money?   Jun 13 Jun 17

Geometry

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  Aug 24 Visiting Friends   Sep 6 Sep 10
  Sep 7 What's the Angle?   Sep 20 Sep 24
  Sep 21 Congruent Rectangles X Oct 4 Oct 8
  Oct 5 Plane and Simple?   Oct 18 Oct 22
  Oct 19 The Folding Ruler   Nov 1 Nov 5
  Nov 2 Well, Well, Well   Nov 15 Nov 19
  Nov 16 Trisecting a Square   Nov 29 Dec 3
  Nov 30 Is the Fair Fair?   Dec 13 Dec 17
  Dec 14 Square Segments   Jan 3 Jan 7
  Jan 4 Arranging Rectangles   Jan 17 Jan 21
  Jan 18 Whodunnit?   Jan 31 Feb 4
  Feb 1 Ants Marching   Feb 14 Feb 18
  Feb 15 Dendrochronology   Feb 28 Mar 4
  Mar 1 Off on a Tangent   Mar 14 Mar 18
  Mar 15 Similar Perimeter   Mar 28 Apr 1
  Mar 29 How Long is the Base?   Apr 11 Apr 15
  April 12 A Picturesque Pythagorean Proof   Apr 25 Apr 29
  April 26 Pisa's Lean   May 9 May 13
  May 10 Seeing Stars   May 23 May 27
  May 24 Fix This Picture   Jun 6 Jun 10


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