* Addressing learning gaps: Initially, summer programs often focused on helping students who fell behind during the regular school year to catch up.
* Expanding educational opportunities: As educational opportunities expanded, summer programs offered a way to provide extra instruction or enrichment activities for students who wanted to learn more.
* Teacher training: Summer programs were also used as a way for teachers to receive additional professional development.
So, while no single person invented summer school, its development was a collective effort driven by the need to address various educational challenges and opportunities.