“Tailor-ED graduated from the Y Combinator startup accelerator earlier this year. At that time, the company only offered math materials for grades three to six. Now, Tailor-ED covers K-8 math. It’s used in more than 1,500 schools worldwide, with 70 schools that pay for subscriptions. Most of those paying schools are international.

CEO and co-founder Maayan Yavne says she wants to add English language arts materials next and continue to build partnerships with content publishers….”