Students in a single classroom may be working on entirely different portions of the curriculum depending on their level of mastery. (educationnext.org)
When used for a teacher in a single classroom, we frequently only have 20 or 25 observations (if that). (educationnext.org)
Depending on your demographics, you may encounter people experiencing mild to severe levels of disease progression in a single classroom. (yogaforalz.com)