Math & Numeracy Teaching Resources

This page has resources for rich math problems, lesson plans, math activities, virtual manipulatives, digital math instruction, and more!


Open Middle Problems

Open Middle is an incredible source of math problems that can be searched by topic and/or grade level K-12. What makes an "open middle" problem? All the problems on the site have a closed beginning because they start with the same initial problem. Most have a closed ending, because they end with the same answer (though there are some problems here that have more than one answer). They all have an open middle, because there are multiple ways to approach each problem. The problem to the left is an example of a middle school level task. 

Learn more about using Open Middle with adult education students:

Play With Your Math

This website was created by two teachers in Massachusetts, who take problems that they love, and adapt them so that they are accessible to everyone. They design posters and handouts that hook you visually and explain the problem in just enough words. The problems that they pick require trying, struggling, failing, adjusting, and trying again until, finally, a discovery is made.

Math Memos

Adult educators share non-routine math problems, samples of student work, and practical suggestions for bringing the problems to life in your classroom.

Math for Love

Dan Finkel and Katherine Cook are a husband and wife team dedicated to transforming how math is taught. The Math for Love site has a huge collection of Openers, Games, Rich Tasks and lessons.

Click on the image below. What do you notice? What do you wonder?

Five Principles of Extraordinary Math Teaching

Dan Finkel from Math 4 Love


  • CollectEdNY: Find free, quality teaching resources vetted and reviewed by adult education instructors, for adult education instructors. Post comments, share experiences and ask questions and engage with adult educators across the state and country.
  • CUNY HSE Math FrameworkThe CUNY HSE Math Curriculum Framework focuses on Problem-Solving in Functions & Algebra. It integrates problem-solving strategies, productive struggle, perseverance and mathematical discussion into content learning. It has model lessons, rich engaging math problems, samples of student work, and more.

  • CUNY Framework PostsFramework Posts gathers HSE and ABE lessons, problems, activities, & readings organized by math subjects, domains & subdomains.

  • Open Up Resourcescomprehensive 6-8 and HS math curricula, organized into helpful units with lots of rich problems. Available in both English and Spanish. 
  • OER Commons: OER stands for Open Educational Resources and refers to resources developed by teachers and shared freely. This website is a place for teachers to find (and share!) teaching materials. This link will bring you to the search engine set for "Math" and "Adult Education" materials. 



  • Mathigon Manipulatives: Includes number tiles (good for place value), fraction bars, fraction circles, protractors, algebra tiles, prime factor circles (like a virtual Prime Climb) and more.


Check outAlleviate Math Fears with a Math Fair: A How-to-Guide for Organizing a Adult Numeracy Adventure Day 

ANN member Patricia Helmuth received a mini-grant from the NYS Dept of Education to create a how-to-guide that includes everything you need to organize a math fair at your program, including planning, promoting, preparing for the event, and all the activities, games, and problems you'll need. Since Patrica created the guide, there have been at least 8 Student Adventure Days across NYS and in Washington, DC. 

Patricia wrote about the experience in the Math Practitioner: How to Alleviate Math Fears with a Math Fair - Spring 2017


  • The Multiplication Course by Steve Wyborney is a highly interactive multiplication course – free on YouTube – created by the teacher behind SPLAT!  The videos are completely ready for all students, all teachers, all parents, everyone! The course teaches students deep, rich, and important multiplication concepts while they are also learning multiplication facts.  It also puts students in control of their learning, allowing them to pause the think deeply, allowing them time to write, allowing them to discover important math ideas.
  • How Close to 100? - Using 2 dice and arrays students compete to cover as much of a blank 100 grid as they can. 
  • Multiplication Representation Cards - Use these cards to get students into groups by matching cards with different representations of multiplication (area models, word problems, partial products, and distributive property). 


  • Nix the Tricks: This free online book is filled with alternatives to the shortcuts so prevalent in mathematics education and explains exactly why the tricks are so bad for understanding math.

Do you have any resources for rich problems and/or lessons plans you think should be included on this page? Click HERE to let us know!

Powered by Wild Apricot Membership Software