Samples of the Problems of the Week
All of our problems were originally written with a specific grade range in mind, which is indicated here. Over the years, however, many teachers have shared with us that their students have had successful problem solving experiences in their classrooms when exploring problems from many different levels.
See below for an explanation of the accompanying support materials.
Primary (K2): The Eagle and the Bear

Algebra (Algebra 1): Math Club Mystery

Math Fundamentals (35): Dad's Cookies

Geometry (HS Geometry): Broken Pottery

PreAlgebra (68): Ostrich Llama Count

Trig & Calculus: Cooling Colas

See more problems on our pages of handouts from the 2009, 2010, 2011, and 2012 NCSM/NCTM conferences.
Support Materials
Many of our problems are accompanied by the following:
Teacher Packets include the problem and "answer check" (the answer we provide students after they submit their solution to a problem), a range of solutions we write, our problemspecific scoring rubric, tips about how to introduce the problem to students, and ideas about how to move students forward. Many also include alignment to the Common Core State Standards and samples of student work and comments about the solutions based on a category from the scoring rubric. Over 300 of our problems currently have packets.
Scoring Rubrics help you think about how to score your students' solutions using our sixcategory scoring grid. Over 300 of our problems currently have problemspecific rubrics.
Scenarios provide a version of the problem setup, without the question. This is a good way to introduce the Problems of the Week in your classroom and have students focus on the story of the problem and generate as much relevant mathematics as possible. Over 300 of our problems currently have scenarios.
Teaching with PoWs  View the teacher documents and suggestions for classroom use.
Articles that we have had published about problem solving with students, including articles that give context to using the Problems of the Week.
Ready to try it? Trial Account—try a Class Subscription for free. See the Current PoWs and up to 5 problems from the Library or Write Math; register students and monitor and mentor their submissions; apply for free mentoring if available.