14 October, 2011
Volume 16 No. 41
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In This Issue

Speak Up 2011

eInstruction Contest Deadline Next Tuesday, 25 October

1, 2, 3, ..., 200,000 Integer Sequences


Online PD


Orientation Sessions

Math and Tech Workshops


Problem Based Learning Courses

Graduate Credit:
Mathematics Teaching and Learning Certificate

Master's Degree


Speak Up 2011


This annual survey facilitated by Project Tomorrow gives individuals the opportunity to share their viewpoints about key educational issues — and to influence local, state and federal policies and programs.

Since the inaugural survey in 2004, when it went by the name NetDay, millions of students, educators, and parents have shared their views through this national online research project.

Participants may request survey data from previous years here:


Download sample survey questions, flyers, and other promotional materials to help spread the word:


eInstruction Contest Deadline Next Tuesday, 25 October


Videos for the 5th Annual eInstruction Classroom Makeover Video Contest are due Tuesday, 25 October.

Enter for a chance to win prizes such as a $75,000 classroom-technology makeover, or a package from the Math Forum which consists of a Problems of the Week School Membership and three registrations in our online courses:

  • PoW Class Membership: Resources & Strategies for Effective Implementation
  • Learning from Student Work: Make the Most of Your PoW Membership
  • Mentor Your Own: Supporting Strong Development of Mathematical Practices

So hurry up and sing that song ... or parody!

1, 2, 3, ..., 200,000 Integer Sequences


The On-Line Encyclopedia of Integer Sequences™ (OEIS™), first featured in these pages over fourteen years ago, is approaching its 200,000th sequence.

Run the demonstration pages to see the many ways to use the OEIS:


Can you guess the rules for generating these sequences?


Use the WebCam to randomly browse through sets of sequences such as "Best Sequences" and "Sequences Needing More Terms":


The encyclopedia averages about 55 new acceptances a day. To discuss sequences, propose a new one, update an existing entry, or see a list of citations to hundreds of the research articles and books that have referenced the OEIS, check out the accompanying wiki:


Neil J. A. Sloane began the encyclopedia in 1965, during his graduate studies at Cornell University. For decades, he maintained and updated it single-handedly. To read more about the history of the OEIS — and the foundation recently set up to maintain it as a service freely accessible to the public — visit



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