Toy Pegboard from Arithmetic to Coding: Six Projects Launches Online

Share Article

An immigrant father is creating "educational supplements" to make subjects learnable and their students teachable. He calls himself STEM Dad (where STEM means Science, Technology, Engineering and Mathematics).

The common core of STEM Dad's projects is the toy pegboard, which to him is a piece of two-dimensional countable space. The projects cover early development, arithmetic, space, time, causality and computer programming.

The beginning was quite traumatic. STEM Dad's two U.S.-born children went to school and learned to hate math. Both were well prepared, their English was fine, and their schools were nothing but good.

Looking for a teaching toy to help his daughter, STEM Dad came across a toy pegboard, on which he was building symmetries and patterns with his youngest child. Suddenly, he realized that it was a frameless counting frame, on which he could teach long arithmetical operations with numbers in any radix.

Three years later, he brought the six non-commercial demo websites online.

MAKE THEM MAD ( is a brief history of a little girl, her toy pegboards and the discovery of two-dimensional countable space.

ROBOPEGS ( is about making the experience of MAKE THEM MAD available to parents, who, like STEM Dad himself, are not as smart as they want their children to be.

FIREPEGS ( is a computer toy, bringing together space, time and causality. The virtual pegs form networks and act. As they fire up and pass fire to their neighbors, the patterns on the virtual pegboards change.

SHNUMBERS ( explains how to teach arithmetic through patterns in two-dimensional countable space.

CODEPEGS ( demonstrates computer programming lessons on virtual pegboards. Instead of printing "hello, world!", STEM Dad flashes a color.

DEFENSIVE MATH ( contains facts, ideas and observations, which STEM Dad is collecting in hopes of preventing school from mathematically disabling his third child.


Contact information, a human-readable story and an introduction can be found at the SIX PROJECTS website: :

Share article on social media or email:

View article via:

Pdf Print

Contact Author

Georgiy Kuznetsov
Visit website