Learn math through discovery.
A thinking partner for elementary through high school — built for students, families, and schools.
Discover what a radian is.
Compass, ruler, string, protractor.
Questions and activities that make you think
Every session starts with a situation, not a lecture. You work through the activity until the idea clicks — then Kelvi helps you name it and articulate your thinking.
You've discovered what a radian is. How would you define it in your own words?
What do you notice about this circle?
From discovery to authorship
Kelvi sessions follow the arc of mathematical thinking — discovery, exploring, naming, and authorship. One question at a time. No answer bots, no shortcuts.
Your notebook, your thinking
Draw diagrams, scratch out wrong turns, attach messy work. Kelvi reads what you made — not a clean final answer in a box.
Elementary through high school
Kelvi Galaxy
- Shape and space
- Proof and argument
- Transformations
- Coordinate geometry
- Trigonometry
More coming soon.....
Develop a math mindset
What other apps measure
Streaks. Test scores. Levels completed.
What we measure
- Can your learner explain it?
- Can your learner use the language?
- Is your learner thinking like a mathematician?
Kelvi doesn't give badges for solving problems. It helps your learner discover mathematical thinking.
Built with schools that teach through discovery and discussion
Kelvi School gives teachers a window into student thinking — not scores. Our pilots pair with classrooms that already believe the conversation is the lesson.
Request a pilot