The Happy Numbers team consists of experienced teachers, mathematicians, methodologists, designers, developers, writers, illustrators, and customer service professionals.

Author articles

Your K-1 Students Can Do Algebra!

Your K-1 Students Can Do Algebra!

Although your primary students may be just learning to add and subtract small numbers, they can begin to develop algebraic thinking with this fun exercise. We’ve combined simple, familiar equations with helpful graphics to make algebra accessible to even the youngest mathematicians.
Happy Numbers team· 02 Nov
Hitting Math Benchmarks in K-2 (Case Study)

Hitting Math Benchmarks in K-2 (Case Study)

After mind-growing lessons that focus on conceptual understanding, can students succeed on such abstract tests that only measure procedural fluency? Will the tests cause trauma or anxiety in our youngest students (as it often does in teachers!)? At Slackwood Elementary School in New Jersey, math specialist George Regan set out to answer these questions with some research of his own.
Happy Numbers team· 02 Nov
How to Teach a Sense of Larger Numbers through Estimation

How to Teach a Sense of Larger Numbers through Estimation

A Guessing Jar is one of my favorite activities for promoting number sense and an awareness of how large a number is. I love that it can be filled with anything small or large and right away we have a number activity that is unique every time.
Happy Numbers team· 02 Nov