Tailor-ED
The business, the turning points, and the decisions behind them.
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Sections to complete：02 · 05
01 / WHAT IT BUILT
What the company did
Tailor-ED was an edtech startup offering a platform of open educational resources for K-8 math that let teachers group students by proficiency, confidence and motivation, assign differentiated work, and run exit-ticket assessments. A free tier covered limited lessons, with $9-per-month teacher plans and schoolwide subscriptions on top.
02 / FAILURE REASONS
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03 / EVENT HISTORY
Events in the structured record
- Origins at Stanford
Co-founders Maayan Yavne and Yael Haramaty meet as Stanford students and decide to build a tool simplifying how teachers find effective lessons.
- Y Combinator
Tailor-ED graduates from the Y Combinator accelerator, offering math materials for grades 3-6 and expanding toward K-8.
- Seed round
The company raises a $1.6 million seed round led by Benson Oak Ventures, with BrainPOP founder Avraham Kadar, Elevate Education, Emerge Education, FreshFund and Y Combinator participating; the platform is in use at 1,500+ schools, 70 paying.
04 / CONTEMPORARY REBUILD ASSESSMENT
Difficulty of rebuilding this project today
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Overall assessment: Not completed
05 / CAUSAL CHAIN / AFTERMATH
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