Family of Problems
Family of Problems is dedicated to building a warehouse of creative, interactive, flexible problems for innovative math teachers. All the problems within this site have been successfully used by experienced math teachers in the classroom. Problems are grouped in threes based upon related content and learning concepts. Each problem is documented with a front door, lesson plan, and black line master; and links to its two closely related problems.
Additional Resources
I.M.P.A.C.T in Mathematics
The purpose of Project IMPACT, Improving Mathematical Practices via Algebraic Connections and Technology in Elementary and Middle School Mathematics, is to create a collaborative network for knowledge development in mathematics teaching and learning. It provides a forum for teachers to collaboratively plan lessons, exchange best instructional practices and effective uses of technology tools to design instructional tasks that promote algebraic conceptual thinking.
Resources for Educators
https://ies.ed.gov/ncee/rel/Products/Region/appalachia/Blog/107044