Behind the Numbers

The D-E mathematics Department

Second Round of Admissions

Applications for the first round of admissions closed on December 5, 2025. You may still submit an application for the 2026–2027 school year which will be considered for the second round of admissions.  Second-round applications will be reviewed for grades with...

Summer Programs @ D-E

Summer Programs @ D-E

From basketball and volleyball to strings-centered music immersive camps, D-E Summer offers day programs especially designed for LS students!

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.