Sammi Siegel

Sammi Siegel is a Staff Software Engineer leading the Duolingo Math Team. She is a graduate of Duke University, where she studied Computer Science and Math.

Nov 12Cassie Freeman, Ph.D.

La peur des maths : qui est concerné et pourquoi ?

Nov 7Cassie Freeman, Ph.D.

Quem tem ansiedade matemática e por quê?

Oct 18Sammi Siegel

Teaching Owlgebra: developing math on Duolingo

Jul 11Cassie Freeman, Ph.D.

¿Qué es la ansiedad matemática y quiénes la padecen?

Jul 9Cassie Freeman, Ph.D.

Wer bekommt Mathe-Angst und warum?

Mar 6Cassie Freeman, Ph.D.

Who gets math anxiety and why?