The event was part of a national educational movement in computer coding instruction that is growing at Internet speeds. Since December, 20,000 teachers from kindergarten through 12th grade have introduced coding lessons, according to Code.org, a group backed by the tech industry that offers free curriculums. In addition, some 30 school districts, including New York City and Chicago, have agreed to add coding classes in the fall, mainly in high schools but in lower grades, too. And policy makers in nine states have begun awarding the same credits for computer science classes that they do for basic math and science courses, rather than treating them as electives.
There are after-school events, too, like the one in Mill Valley, where 70 parents and 90 children, from kindergartners to fifth graders, huddled over computers solving animated puzzles to learn the basics of computer logic.