Simple. Conceptual. Powerful.

What is HammerMath?

HammerMath is an engaging, mathematics curriculum designed to teach fractionsmeasurement, and scaling concepts. At the core of the curriculum is The Big InchThe Big Inch (U.S. Patent #7,632,099 and #8,070,493) is the only math manipulative that combines measurement and fractions allowing students to physically apply the algorithms of fractions. 

The Big Inch is designed for students to physically create their own fraction problems. This unique methodology of combining color and number helps students gain true understanding about the physical space connected to numbers, patterns, and measurement while simultaneously developing pre-algebraic thinking.

"The kids are on fire with this program!"

"I have found that using The Big Inch allows me to deconstruct the algorithms of more complex fraction concepts."

Contact Us

For more information regarding our products, please email us at To purchase or learn more about HammerMath's online curriculum, please visit