Learning you can trust, every day.
We make one shared lesson a day, a dictionary for developers, and cards for the heaviest days. We say only what we can show.
Two ways to keep one promise.
Some of what we make helps people learn. Some of it helps people through loss. All of it should be right.
The Daily Lesson
One shared lesson a day, taught by Kelly. Open to everyone and openly licensed under CC BY 4.0.
Word Orb
A dictionary and lesson API for developers who build with language.
Kelly is the teacher inside The Daily Lesson and the reader inside HELD. She is AI-generated, and we always say so. In HELD she reads each card word for word; AI never rewrites a card.
We count our mistakes.
of our AI-generated lesson titles had a provable defect when we audited them with code alone.
AI helps us make lessons, and AI makes mistakes. We use outside AI models, and we say so.
So we are building a checking step that reads our work before a learner does. It answers plain questions about the text, such as
“Does this lesson teach its title?”
“Is this in the right language?”
It never writes or rewrites anything. Anything uncertain, and anything about safety, goes to a person.
We measure our own mistakes and say so. The number on the left is the one we are working to bring down.
Learn to use AI well, and to check it.
Our founder, Nicolette Rankin, teaches schools, small businesses and AI teams to get real work out of AI without trusting it blindly. Every session uses your own work, in person around Malibu or online.
- AI JumpstartOne person or a small team, in one 90-minute session.
- WorkshopA team, a school staff or a faculty, up to 15 people.
- PilotFour weeks with one team or classroom, on real work, with results measured against where you started.
- Expert workRubric and evaluation design, and careful grading of model output, for AI teams.
Every project gets a fixed quote before we start.
A public benefit corporation.
Lesson of the Day, PBC was founded by Nicolette Rankin, co-founder of Open English (about 2 million students; Harvard Business School case N9-814-020, 2014).
- Company
- California Public Benefit Corporation
- Entity No.
- 5774402
- Based in
- Malibu, California
- Patent
- U.S. Patent Application 18/088,519 (Notice of Allowance, July 2026)
- Founder
- Nicolette Rankin
Say hello.
nicoletterankin@gmail.comQuestions about a product, a class or a project all come here, and Nicolette replies herself.