2011-12 Problem of the Week Calendar

Links to the Packets, suggested Activity Series strategies, and Online Resources (and more!) are available from the individual problem page (linked from the titles below). Access to the problems is restricted to users who have subscribed to one of our membership services. More information is available on our Pricing Guide.

Mentor groups (indicated by ) make it possible for more students to receive free mentoring than is normally possible. This list is updated throughout the year.

Note that, starting this year, students who have submitted before the deadline can continue to revise their work throughout the year.

Teachers with Full Memberships or higher can also view the problems from the 2010-11 academic year.

[ Primary | Math Fundamentals | Pre-Algebra | Algebra | Geometry ]

Primary
	Start	Problem	Mentor Group	Submissions Close
	Aug 22	How Many Berries Did I Eat?		Sep 4
	Sep 5	Pizza Night		Sep 18
	Sep 19	The Eagle and the Bear		Oct 2
	Oct 3	Clowning Around		Oct 16
	Oct 17	Charlie's Gumballs		Oct 30
	Oct 31	What Do I Have In My Bag?		Nov 13
	Nov 14	How Big is Your Foot?		Nov 27
	Nov 28	Growing Up		Dec 11
	Dec 12	Building a Tower		Dec 25
	Dec 26	Apple Celebration		Jan 15
	Jan 16	Up, Up, and Away!		Jan 29
	Jan 30	Try It Out		Feb 12
	Feb 13	Reading Superstars		Feb 26
	Feb 27	Name That Shape!		Mar 11
	Mar 12	Helping Hands		Mar 25
	Mar 26	Picture This		Apr 8
	Apr 9	Balloon Fun		Apr 22
	Apr 23	Cupcake Combinations		May 6
	May 7	Different Shapes		May 20
	May 21	The Arm Wrestling Match		Jun 3
Math Fundamentals
	Start	Problem	Mentor Group	Submissions Close	Solutions Posted
	Aug 29	Salad Daze		Sep 11	Sep 16
	Sep 12	I Get a Kick Out of Soccer!		Sep 25	Sep 30
	Sep 26	So Many Salmon		Oct 9	Oct 14
	Oct 10	Homework Free Fridays		Oct 23	Oct 28
	Oct 24	Peanut Butter and Jelly		Nov 6	Nov 11
	Nov 7	Count the Discount		Nov 20	Nov 25
	Nov 21	Anthony's Famous Butter Rolls		Dec 4	Dec 9
	Dec 5	Building the Fence		Dec 18	Dec 23
	Dec 19	Cupcakes, Cupcakes!		Jan 8	Jan 13
	Jan 9	Let the Chips Fall ...		Jan 22	Jan 27
	Jan 23	Filling Beauty's Seats		Feb 7	Feb 10
	Feb 6	Frog Farming		Feb 19	Feb 24
	Feb 20	Jumping Rope		Mar 4	Mar 9
	Mar 5	The Big Balloon Blowup		Mar 18	Mar 23
	Mar 19	Basketball Bargain		Apr 1	Apr 6
	Apr 2	Cat Walk		Apr 15	Apr 20
	Apr 16	Elevator Weigh-in		Apr 29	May 4
	Apr 30	Catching Up!		May 13	May 18
	May 14	After School Snacks		May 27	June 1
	May 28	Mini-Mall Measurements		Jun 10	Jun 15
Pre-Algebra
	Start	Problem	Mentor Group	Submissions Close	Solutions Posted
	Aug 22	Duke is Missing		Sep 4	Sep 9
	Sep 5	Integer Images		Sep 18	Sep 23
	Sep 19	Getting Your Kicks on Route 66		Oct 2	Oct 7
	Oct 3	Falling Leaves		Oct 16	Oct 21
	Oct 17	Building Fences		Oct 30	Nov 4
	Oct 31	Trick-or-Treat Route		Nov 13	Nov 18
	Nov 14	Timber!		Nov 27	Dec 2
	Nov 28	Happy Thanksgiving		Dec 11	Dec 16
	Dec 12	A Holiday Gift for Grandmother Brown		Dec 25	Dec 30
	Dec 26	A Happy New Year Wish		Jan 15	Jan 20
	Jan 16	Practicing for the Winter Olympics		Jan 29	Feb 3
	Jan 30	Power Outage		Feb 12	Feb 17
	Feb 13	Valentine's Day Candy		Feb 26	Mar 2
	Feb 27	The Scientific Notation Game		Mar 11	Mar 16
	Mar 12	Forming Triangles from a Folding Ruler		Mar 25	Mar 30
	Mar 26	He Ate It All!		Apr 8	Apr 13
	Apr 9	Tunnel Time		Apr 22	Apr 27
	Apr 23	Stacking Wood		May 6	May 11
	May 7	Women's Walkway		May 20	May 25
	May 21	Sizing Up Sequoias		Jun 3	Jun 8
Algebra
	Start	Problem	Mentor Group	Submissions Close	Solutions Posted
	Aug 29	The Custom of Customs		Sep 11	Sep 16
	Sep 12	Examining an Equation		Sep 25	Sep 30
	Sep 26	Cherokee Creek Checkers Club		Oct 9	Oct 14
	Oct 10	Don't Be Square		Oct 23	Oct 28
	Oct 24	Count Your Change		Nov 6	Nov 11
	Nov 7	Laser Tag		Nov 20	Nov 25
	Nov 21	Teeter-Toddlers		Dec 4	Dec 9
	Dec 5	Tribonacci Tribulation		Dec 18	Dec 23
	Dec 19	Flying off the Shelves		Jan 8	Jan 13
	Jan 9	Pizza Puzzle		Jan 22	Jan 27
	Jan 23	Let It Snow!		Feb 7	Feb 10
	Feb 6	A Variable Triangle		Feb 19	Feb 24
	Feb 20	Teeter Trio		Mar 4	Mar 9
	Mar 5	Crossed Wires		Mar 18	Mar 23
	Mar 19	Teeter Troop		Apr 1	Apr 6
	Apr 2	Alvin's Theorem		Apr 15	Apr 20
	Apr 16	That's Interesting!		Apr 29	May 4
	Apr 30	Family Fun		May 13	May 18
	May 14	The Length of Larry's Rectangle		May 27	June 1
	May 28	The Joke		Jun 10	Jun 15
Geometry
	Start	Problem	Mentor Group	Submissions Close	Solutions Posted
	Aug 22	Integer Triangle Angles		Sep 4	Sep 9
	Sep 5	Congruent Rectangle Help		Sep 18	Sep 23
	Sep 19	Finding a Supplement		Oct 2	Oct 7
	Oct 3	All Around the World		Oct 16	Oct 21
	Oct 17	Boxing Up Harry's Broom		Oct 30	Nov 4
	Oct 31	Eight Sticks and Zero Triangles		Nov 13	Nov 18
	Nov 14	Analyzing Angles		Nov 27	Dec 2
	Nov 28	Lotsa Popcorn!		Dec 11	Dec 16
	Dec 12	Nautical Navigation		Dec 25	Dec 30
	Dec 26	The Coordinated Quadrilateral		Jan 15	Jan 20
	Jan 16	Voulez Vous des Voussoirs?		Jan 29	Feb 3
	Jan 30	Making a Map		Feb 12	Feb 17
	Feb 13	Measuring Cylinders		Feb 26	Mar 2
	Feb 27	Kyle's Similar Triangles		Mar 11	Mar 16
	Mar 12	The Perimeter of an Octagon		Mar 25	Mar 30
	Mar 26	Exploding Shapes		Apr 8	Apr 13
	Apr 9	Spring Up, Fall Back		Apr 22	Apr 27
	Apr 23	Save the Lake!		May 6	May 11
	May 7	As Far as the Eye Can See		May 20	May 25
	May 21	Why Does This Construction Work?		Jun 3	Jun 8