Our Results

We are committed to collecting third-party research on the impact of our work. A recent study by Mathematica Policy Research shows statistically significant evidence of our impact on student achievement. The study finds that our middle school students gain an extra 10 months of learning growth in math and 7 months of extra learning growth in reading after three years.

Mathematica was commissioned by Expeditionary Learning to conduct an independent evaluation of the program. Mathematica’s team matched students from five urban middle schools founded in partnership with EL in Washington, DC, and New York City to a comparison group of students with similar demographic characteristics and baseline achievement in the two years before students entered EL schools. The team also used a variety of methods to mitigate potential threats to the study’s validity, such as student attrition and repeating a grade. This rigorous approach helped to ensure that the estimated impacts on student performance were caused by the EL model and not variations in student characteristics or student achievement trends from prior years.

Positive impact on EL students measured in months of learning growth. Study by Mathematica Policy Research.

Key Findings
Based on the impact estimates, the five EL schools increase reading and math significantly on average:

  • In reading, EL students experience positive impacts that are approximately equal in magnitude to an extra five months of learning growth after two years (.11 standard deviations) or an extra seven months of learning growth after three years (.16 standard deviations).
  • In math, EL students experience positive impacts equal to about an extra three months of learning growth after two years (.09 standard deviations) or 10 months of extra learning growth after three years (.29 standard deviations).

Download the Mathematica Summary here

Evidence of Success

*The EL Implementation Review (IR) is a standardized measure of implementation across 26 key practices of the EL Design that is conducted annually.

Download Evidence of Success here

Our 100% Club

2010 100% college acceptance rate

Our goal for each student is college acceptance. In our exemplary high schools, 100% college acceptance is the standard.

Brooklyn School for Collaborative Studies
Brooklyn, NY

Capital City Public Charter School
Washington, D.C.

Codman Academy
Boston, MA

Expeditionary Learning School for Community Leaders
Brooklyn, NY

Mapleton Expeditionary School for the Arts
Thornton, CO

Northpoint Expeditionary Learning Academy
Prescott, AZ

Springfield Renaissance School
Springfield, MA

Tapestry Charter School
Buffalo, NY

Washington Heights Expeditionary Learning School
New York, NY