Dan Kohn's Blog

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A South African mathematician walked into MIT in the 1960s, looked at how schools were starting to use computers, and said they had it backwards The machine should not teach the kid The kid should teach the machine And in arguing that, he accidentally invented modern coding education.

His name was Seymour Papert, and almost every coding class your kid takes today traces back to that one inversion.

He did not arrive at it from a love of computers. Before MIT, Papert spent years in Geneva working alongside Jean Piaget, the psychologist who proved children build knowledge instead of absorbing it. They are not empty cups you pour facts into. They are builders.

Papert took that idea and ran straight at the most expensive machine of his era.

In 1967, when a single computer cost as much as a house, he and his team built Logo. The first programming language ever made for children. It came with a turtle. A small robot, or a shape on the screen, that moved when a child typed a command.

Type forward 50, The turtle moves, Type right 90. The turtle turns, Tell it to repeat, and a square appears.

Watch what just happened, The child was not memorizing a math fact, The child was giving instructions to a machine and watching them play out in real time.

Papert wrote down the whole philosophy in his 1980 book Mindstorms, The line that defined a movement is this one.

He said in most schools the computer was being used to program the child, In his vision, the child programs the computer, and in teaching the computer how to think, the child begins to explore how they think themselves.

That last part is the part most people miss.

The turtle was never really about drawing squares. When a kid’s square came out crooked, they could not blame themselves and shut down. They had to look at their own instructions, find the broken step, and fix it. Papert called this debugging, and he argued it was the most honest form of learning a child could do. A wrong answer was not a verdict. It was information.

The schools fought him. He was called an elitist for wanting computers in classrooms when only rich families had them. Critics said his ideas would damage children.

They were wrong about all of it.

Logo’s DNA runs through everything now. Scratch, the colorful block coding millions of kids use today, was built at MIT by Mitch Resnick, who was Papert’s student and friend. Code. org now reaches kids in over 180 countries. Every “hour of code” event is running on the bet Papert placed sixty years ago.

He died in 2016. He never wrote a viral thread or sold a course. He just kept insisting that a child handed real power over a real machine would learn more than a child handed a worksheet.

The whole industry teaching kids to code was built on a man who did not want to teach them anything.

He wanted them to do the teaching.