Don did not start out studying how people learn. He started out struggling to learn himself.

Long before Don Ariel built anything, he was a child trying to figure out why his brain worked differently from everyone else in the classroom. Information that others could picture and hold in their minds simply would not stick for him the same way. He was not slow. He was not careless. He just could not see things the way the people teaching him seemed to assume he could.

He did not have a name for it then. He would not have a name for it for decades. What he had was a question that never left him. Why do some people grasp things immediately while others struggle with the same information presented the same way? And what would change if you stopped assuming everyone's mind worked the same way?

That question became his life's work.

Years later, through his own research building PrimeSense, Don discovered the name for what he had experienced as a child. Aphantasia. The inability to visualize mental images. An estimated one to three percent of the population experiences it. Most never know. Don spent most of his childhood and adult life not knowing, finding his own ways to understand a world that was largely designed for minds that worked differently from his.

It did not hold him back. It pointed him forward.

32 years. The U.S. Department of Defense. And a lesson that changed everything.

In 1988 Don co-founded Raydon Corporation in Port Orange, Florida. Over the next 32 years Raydon became one of the leading providers of virtual military training technology in the United States, serving the U.S. Department of Defense with simulation systems that trained soldiers to perform under the highest possible pressure.

Raydon built training firsts that had never existed before. The world's first Convoy Operations Trainer. The world's first Route Clearance Trainer. Mounted machine gun simulators. Stryker vehicle trainers. Systems that put soldiers inside realistic, high-stakes environments and trained them to think, decide, and respond before the real moment arrived. Over three decades the company employed hundreds, filed 11 patents, and was acquired in 2020 by By Light Professional IT Services.

But the most important thing Don built at Raydon was not a simulator. It was an understanding.

The soldiers who performed best in the field were not the ones who had memorized the most procedures. They were the ones who had learned to see patterns so deeply that their responses became instinctive. Analysis gave way to perception. Effort gave way to fluency. The training systems that produced the best outcomes were the ones that built that perceptual recognition directly, through structured, repeated exposure to the right patterns in conditions that demanded real response.

Don spent over 30 years watching that principle work in some of the most demanding human performance environments on earth. And then he began to wonder something that changed the direction of everything that came next.

What if children had that foundation before they ever struggled?

Every product in the world is built from something. A market opportunity. A technology gap. A business plan. PrimeSense was built from three people whose experiences Don could not stop thinking about.

  • Himself

    Don knows what it feels like to sit in a classroom where the teaching assumes a kind of thinking you cannot access. He knows the specific frustration of understanding something deeply but being unable to hold it the way the lesson requires. Aphantasia meant that visual memory worked differently for him. Abstract symbols on a page carried less meaning than they were supposed to. He compensated, found his own ways through, and built one of the most successful simulation companies in the region. But he never forgot what it felt like to be the child in the room for whom the standard approach simply did not fit.

  • His friend's son

    One of Don's closest friends has a son who was deaf from very early in life. His friend loved music. His son was exceptionally gifted in mathematics and science. He could see patterns and structures that others missed entirely.

    Don saw something in that. A father whose life was impacted by music. A son whose mind was built for patterns and systems. Two worlds that most people would never think to connect.

    But Don thought about it.  If music and mathematics share the same underlying pattern structure then there had to be a way to make that structure visible rather than auditory. A way to experience the relationship between a rhythm and a number through something other than hearing.

    That friend's son eventually became a programmer. Today he is the technical developer of Alice: Pattern Gym. The app that makes music and mathematics visible through color and pattern is built, in part, by the person who inspired the idea that it was possible.

  • His daughter

    Amy faced real challenges growing up, particularly with the kind of rote memorization that traditional math instruction depends on. Multiplication tables. Math facts. The drill and repeat approach that works for some children was a genuine impediment to Amy's learning and to her confidence. Don watched her struggle with something that had nothing to do with her intelligence and everything to do with the way the material was being presented.

    He did not accept that the problem was Amy. He believed the problem was the approach. And he believed that if you could make the structure of numbers visible, if a child could see relationships rather than memorize facts, the whole experience of mathematics could be different.

    Amy is the reason the PrimeSense visual language was designed to work for every kind of learner. Not as an accommodation. As a starting point.

Building Intellivance

After 32 years building performance systems for the military, Don built one for children.

Intellivance was founded in Port Orange, Florida, the same city where Raydon was born, grew, and eventually sold. Don did not move to a startup hub or raise venture capital. He stayed where he had always been and built what he believed needed to exist.

PrimeSense is a patented visual language that assigns a unique color and symbol to every prime number, making the hidden structure of mathematics visible for the first time to children ages 6 to 12. It is not a curriculum. It is not a teaching method. It is the perceptual foundation that makes every curriculum more learnable.

The same color system that reveals the structure of prime numbers maps directly to musical notes, days of the week, and the foundations of language. One visual language. Every domain where patterns matter. Which is every domain there is.

The core visual language is protected by a granted method patent. The products built on it, Prime Slap, Alice: Pattern Gym, and the PrimeSense Mat System, are each a different entry point into the same underlying system.

Don serves as the Chief Science Officer of Intellivance. He facilitates the PrimeSense Mat System workshops personally. He is still, at his core, a human performance scientist. He just changed the population he is trying to help.

The transition from concrete to abstract thinking, the cognitive leap that makes real learning possible, is not automatic. It develops. And it can be supported directly if you know what you are doing.

Pattern recognition is not a skill. It is the foundation underneath every skill. When a child learns to see patterns, something changes across the board. Not just in math. In everything that requires them to think rather than recall.

The most powerful thing you can give a child is not information. It is a way of seeing.

Don has been thinking about this for most of his life. He built a company for the military on it. He built another one for children because of it. If you want to talk about what it could mean for your child or your program, he would genuinely like to hear from you.

Get In Touch With Don

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How It Works

The full science behind PrimeSense, the visual language, the research, and the interactive clock.

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The Products

Three ways to experience PrimeSense. One card game, one app, one workshop system.

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