A staffroom without borders
Chalkline is a global staffroom. Swap lessons with teachers in other countries, talk shop one-to-one, and plan tomorrow's class with an AI that knows what a Tuesday actually feels like.
Sample from the staffroom
Priya R.
Pune, India · Mathematics · Grade 5
My class stopped arguing over group work the day I introduced a talking object. Whoever holds the marker speaks; everyone else takes notes. Two weeks in, the quiet ones are running the show.
AI activity studio
Fractions at the market
45 min · Grade 5 · Real-world maths
What's inside
Post a win, a lesson that flopped, a question at 11pm. Filter by subject and hear how a teacher in Nairobi or Bogotá solved the very same thing.
Browse a worldwide directory by subject, grade and country. Read how they teach, then start a conversation with them directly.
Every teacher in the directory is one message away. Your threads stay private between the two of you — a colleague, not a crowd.
Describe your class and get a complete activity: objectives, materials, step-by-step, and how to check it landed. Ask the assistant anything else.
How it works
Subject, grades, country, and one honest line about how you teach. Two minutes, no CV.
Follow the feed, answer a teacher's question, or browse the directory for someone doing your subject somewhere else.
Generate the activity, keep what works in your library, and message a colleague when you need a second opinion.
Go and meet them. Joining is free, and your first conversation is usually the useful one.
Create your teacher profile