Behind the Numbers

The D-E mathematics Department

Activities Fair 2026 Highlights

Activities Fair 2026 Highlights

D-E’s annual Activities Fair gives students the opportunity to explore the many ways they can get involved beyond the classroom. From interest and identity-based clubs and student publications to service, arts, STEM, and social/political groups, there was something...

Here’s to this year’s Math Days! Math Days is an all division event where all D-E students receive the same problem to illustrate and solve. Upper School students came down to the Lower School to support problem-solving, and it was a wonderful moment for learning for all. See how the students visualized their thinking and brought math to life.