# Alison Falco

Alison is a Senior Learning Designer for the Math course at Duolingo. She is a former math teacher and curriculum publisher. Her favorite math topic is Ratios!

Jul 25[Cassie Freeman, Ph.D.](https://blog.duolingo.com/author/cassie/)

[**Querido Duolingo: ¿por qué las palabras para 11 y 12 son tan diferentes en los distintos idiomas?**](https://blog.duolingo.com/palabras-para-once-doce/)

Jul 25[Cassie Freeman, Ph.D.](https://blog.duolingo.com/author/cassie/)

[**Querido Duolingo: Por que os números 11 e 12 são estranhos em tantos idiomas?**](https://blog.duolingo.com/onze-e-doze-palavras-estranhas/)

Jul 25[Cassie Freeman, Ph.D.](https://blog.duolingo.com/author/cassie/)

[**Sag mal, Duolingo: Warum tanzen die Wörter für 11 und 12 in vielen Sprachen so aus der Reihe?**](https://blog.duolingo.com/woerter-fuer-elf-zwoelf/)

Jul 25[Cassie Freeman, Ph.D.](https://blog.duolingo.com/author/cassie/)

[**Duoling⁠oへ⁠⁠の⁠⁠質⁠⁠問⁠：1⁠⁠1⁠⁠と⁠1⁠⁠2⁠⁠だ⁠⁠け呼⁠⁠び⁠⁠方⁠⁠が違⁠⁠う⁠⁠の⁠な⁠⁠ぜ⁠⁠？⁠**](https://blog.duolingo.com/naming-patterns-for-numbers/)

Jun 11[Cassie Freeman, Ph.D.](https://blog.duolingo.com/author/cassie/)

[**Dear Duolingo: Why are the words for 11 and 12 weird in so many languages?**](https://blog.duolingo.com/words-for-eleven-twelve/)