How do schools handle summer classes that are not taken at school but somewhere else

@Richard Pan To enter the courses, you could enroll them for the summer at a transfer school and then give them transfer credits.

For the report card, I believe there is an option to include transfer credits.

@Richard Pan
I believe there are a few steps that need to be done before you add outside grades. Add the Organization (transfer school name) via Core, Settings, then add the new school name (organization) to the student's Persona via Core, Student, then you can can add the grade through Grades Management.