"Competence with fractions is considered foundational for learning algebra, for success with more advanced mathematics, and for competing successfully in the American workforce.” 

National Mathematics Advisory Panel


HammerMath is designed to help you build a deeper understanding of fractions and measurement through real-world application.

Based on architectural design principles, this no-stress course starts with the big-picture concepts of measurement fractions, not just getting correct answers. Once these concepts are mastered, this knowledge is now applied to reading a ruler.

Now, you are ready for architectural design! We will walk you through step-by-step on how to draw a house to 1/4" scale.

HammerMath is based on over 30 years of teaching applied mathematics with an emphasis on fractions and measurement.

That's why we hired an Emmy-award winning director to create animated instructional videos, designed to help you see math in a whole new way and guide you every step of the way.



The Big Inch

(Sold at the link here!)

At the core of our curriculum is The Big Inch (U.S. Patent #7,632,099 and #8,070,493). The Big Inch 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 and present their findings to the class. This unique methodology of combining color and number helps students understand more than just correct answers. Students gain true understanding about the physical space connected to numbers, patterns, and measurement simultaneously developing pre-algebraic thinking.

Both the Teacher Edition and Student Edition include a downloadable, printable PDF of The Big Inch blocks, markers, and number line.

The Big Inch can be purchased separately from the curriculum. To order or learn more about The Big Inch, click HERE.

Frequently Asked Questions

When does the course start?

HammerMath is a manual, self-paced course. When you sign up you will automatically receive an email with login access to the course. You can start anytime.

Do I have to purchase The Big Inch math manipulative in order to take this course?

The online curriculum has a downloadable, printable PDF of The Big Inch blocks, markers, and number line for you to use. If using the printable instead of a physical Big Inch, we recommend printing on heavy weight paper or photo paper. Students can also glue the Big Inch printable to poster board before cutting it out for a stronger backing.

What is the difference between the Teacher Edition and Student Edition of this course?

Both courses have the same core curriculum. The main difference is the Teacher Edition features lesson plans, professional development videos, teaching tips, and downloadable discovery worksheets. The Student Version features Perry Wilson, the creator of the program, walking students through the lessons. The student version also features "brain game" quizzes at the end of each lesson that can be emailed to the teacher upon completion. These quizzes are a great way for a teacher or parent to track their student's progress.

What grades use HammerMath?

HammerMath was designed to visually and physically teach the foundational concepts of fractions, measurement, and scaling and is used from 3rd Grade through Career Tech.

How much does a one year subscription cost for the Student Edition?

The Student Edition subscription is $49 per year.

How much does the physical Big Inch cost and where can I purchase it?

The Student Edition comes with downloadable, printable PDF of The Big Inch blocks, markers, and number line.

The physical Big Inch is made of dense, durable plastic and costs $87 each. You can purchase The Big Inch at our online store HERE.

What math standards does HammerMath meet?

HammerMath was designed to go beyond the traditional textbook. HammerMath is a teaching supplement that can go alongside any standard math curriculum. We did not design Hammer to teach the standards. We don't believe in teaching students how to learn for a test. We believe in teaching in a way that kids learn! Hammer helps students understand and visualize the hard-to-grasp concepts of fractions, measurement, and scaling, to help prepare them to be problem solvers and thinkers. The HammerMath method of teaching is based on 30 years of teaching students the application of math based on real-world construction and architectural design principals. It's a better way to teach!

Can I sanitize The Big Inch?

Yes! The Big Inch is now made of dense durable plastic that can be sanitized in-between uses. Avoid spraying cleaner directly on the number line.