Affiliation
- McMinnville, Oregon1
- Mount St. Mary’s University1
- NYC College of Technology1
- New York City College of Technology1
- New York University1
- Northeast Mississippi Community College1
- OpenIntro1
- Oregon State University1
- Penn State1
- Pittsburgh, Pennsylvania1
- Portland State University1
- Queensborough Community College1
- Saint Michael's College1
- San Francisco University High School1
- Santa Ana, California1
- State University of New York1
- State University of New York (SUNY) Fredonia1
- Swarthmore College1
- Tempe, Arizona1
- Temple College1