Keynote: Hedy: Creating a Gradual Programming Language

on YouTube ↗21m

" summary

A gradual programming language that hides syntax until learners need it, Hedy exposes 18 incremental levels and ships built-in lessons, cheat sheets and humanized error messages to reduce cognitive load. The environment runs entirely in the browser, supports ~25 UI/keyword languages including right-to-left scripts, and uses Weblate for translations. Since 2020 students create ~2 million programs (800,000 unique); the observed syntax error rate is 25% versus ~50% for Python/Java novices.

AI-written summary · about

" chapters (8)

1. 0:00Introduction
2. 0:16Teaching Programming to Kids
3. 2:38Learning from Books
4. 5:20Repetition
5. 6:54The Programmers Brain
6. 10:30Hedy Demo
7. 19:34Open Source
8. 20:23Outro

" related talks

• 21mKeynote: Hedy: Creating a Gradual Programming LanguageDr. Felienne Hermans · OpenJS World 2022
• 45mHedy: A Gradual programming languageFelienne Hermans · Build Stuff 2021
• 01h 05mHedy: Creating a Programming Language for EveryoneFelienne Hermans · YOW! Perth 2023
• 46mHedy: Creating a Programming Language for EveryoneFelienne Hermans · GOTO Copenhagen 2024
• 57mWhy Programming Languages MatterAndrew Black · PWLConf 2023
• 55mKeynote: Functionalist programming language designTomas Petricek · Scala Days Berlin 2018
• 45mHow to Make a Programming LanguageToby Ho · REFACTR.TECH 2019
• 01h 31m"Thoughts on language evolution"James Gosling · reClojure 2022