While planning a lesson for a student, David tried to think of something that would help children envision numbers.

When doing basic math, imagine combinations of numbers with actual height value and then I stack those numbers to find the sum. Combining numbers to create 10 is something that helps break down problems quickly.

After examining these aspects he realized that the skills involved in simplifying problems were all based on stacking numbers and understanding how they relate to each other. Taking these concepts and applying them to a stacking game seemed to fit building blocks extremely well. 

In January of 2013 David began cutting SumBlox prototypes out of wood in his father's garage in Utah.

With the help of the a school SumBlox were tested in classrooms before SumBlox was launched on Kickstarter in October 2014 and the rest was history.