Seymour Papert and the Children's Machine

Pretoria, London, Geneva

Seymour Papert was born on February 29, 1928, in Pretoria, South Africa. As a student at the University of the Witwatersrand he was active in the anti-apartheid movement, which made the country uncomfortable for him; he took a PhD in mathematics there in 1952, spent the 1950s in London in revolutionary socialist circles around the journal Socialist Review, and earned a second mathematics PhD at Cambridge in 1960.

The decisive detour came in Geneva, where from 1958 to 1963 he worked with the developmental psychologist Jean Piaget on how children construct mathematical knowledge. Piaget later said that no one understood his ideas as well as Papert. The collaboration fixed the question Papert would work on for the rest of his life: not how to teach mathematics to children, but how children build mathematics for themselves, and what materials help them build.

MIT and Perceptrons

In 1963 Papert arrived at MIT, became professor of applied mathematics in 1967, and from 1967 to 1981 co-directed the Artificial Intelligence Laboratory with Marvin Minsky. With Minsky he wrote Perceptrons (1969), the mathematical analysis of single-layer neural networks whose negative results, fairly or not, helped freeze neural-network funding for a decade; that story, and Frank Rosenblatt’s posthumous vindication, is told in Frank Rosenblatt and the Perceptron. It is one of history’s stranger double billings: the man who helped pause machine learning was simultaneously revolutionizing how humans learn.

Logo and the Turtle

In 1967 Papert, Wally Feurzeig, and Cynthia Solomon created Logo at the research firm BBN, a dialect of LISP stripped of parentheses and aimed at children. Its famous feature came shortly after: the turtle, first a dome-shaped floor robot with a pen, then a triangle on the screen, which children steered with commands like FORWARD 50 and RIGHT 90. The design was deliberate pedagogy. A child who walks a square can program a square, because the turtle’s geometry is the geometry of her own body; Papert called this body-syntonic reasoning. Debugging carried the deeper lesson: a program that fails is not a wrong answer to be marked in red but a nearly-right idea to be examined and fixed, which is how mathematicians actually work.

Logo’s design goals, later summarized as “low floor, high ceiling” (easy to start, hard to outgrow), became the standard vocabulary for evaluating educational programming tools.

Mindstorms and Constructionism

Papert’s 1980 book Mindstorms: Children, Computers, and Powerful Ideas made the argument in public: in most classrooms the computer programs the child, delivering drill and testing; the interesting inversion is the child programming the computer. He named his learning theory constructionism, extending Piaget’s constructivism with a material claim: people build knowledge best when they are building something shareable, a program, a robot, a sandcastle. He also named the opposite error, technocentrism, the belief that the machine itself produces learning regardless of what anyone does with it.

At the MIT Media Lab, which he joined as founding faculty in 1985, this program turned into hardware. The LEGO Group funded his group’s work on programmable bricks; the collaboration, led on the MIT side by Papert’s students Mitchel Resnick and Fred Martin, shipped in 1998 as LEGO Mindstorms, named after the book. Resnick’s group later built Scratch (2007), Logo’s direct descendant, covered in Computer Science Education. Papert also worked with Nicholas Negroponte on One Laptop per Child, the $100-laptop project whose ambitions and shortfalls are covered in The Digital Divide.

Dead End: Logo as a School Subject

Logo reached millions of classrooms in the 1980s, and mostly failed there. Schools adopted the language and discarded the philosophy: turtle graphics became a unit in the curriculum, taught for a few weeks, tested, and set aside, and studies looking for transfer of general problem-solving skills from this kind of exposure found little. Papert diagnosed the failure himself in The Children’s Machine (1993): school as an institution assimilates a radical foreign body the way an organism does, by neutralizing it, turning an instrument children think with into another subject children are tested on. The pattern he described (adopt the tool, reject the idea) has repeated with each wave of classroom technology since, which is why Mindstorms still reads as current.

Hanoi

On December 5, 2006, while attending a mathematics-education conference in Hanoi, Papert was struck by a motorbike while crossing the street and suffered a severe brain injury. He survived surgery in Hanoi and sepsis afterward, and relearned, slowly and partially, to walk and speak; colleagues noted the grim symmetry of the great theorist of learning having to reconstruct his own. He died at home in Blue Hill, Maine, on July 31, 2016, at 88.

📚 Sources

• Seymour Papert — Wikipedia
• Seymour Papert, pioneer of constructionist learning, dies at 88 — MIT News (2016)
• Papert, S.: Mindstorms: Children, Computers, and Powerful Ideas (1980)
• Logo history — Logo Foundation
• The Origin of LEGO Mindstorms — LEGO Group