Education Cloud (EDC) offers a range of additional capabilities above and beyond the standard SalesCloud when used in combination with PosiEd.
Here are some handy resources:
https://help.salesforce.com/s/articleView?id=sf.industries_common_features.htm&type=5
Data Processing Engine
Terms objects
Subject Offerings vs Course Offerings
Employee object
Day Attendance Summary calculations scoping – use DPE
Reportcard Generation
Grade Levels and Enrolments