geopiet Mar 15, 2018:

The Carnegie unit is a system developed in the lat The Carnegie unit is a system developed in the late nineteenth and early twentieth centuries that based the awarding of academic credit on how much time students spent in direct contact with a classroom teacher. The standard Carnegie unit is defined as 120 hours of contact time with an instructor—i.e., one hour of instruction a day, five days a week, for 24 weeks, or 7,200 minutes of instructional time over the course of an academic year. - https://www.edglossary.org/carnegie-unit/