Hello @Paul OShea you can start by creating a developer account with sample data then create resources as specified at the Education V1.0 reference and test out the APIs using Graph Explorer. There are sample projects that you can run here and here but it looks like these require you to create the resources specified: teacher, student and admin. If you have an existing Student Information System, you can also use School Data Sync which reads the school and roster data from a school's Student Information System (SIS). It creates Office 365 Groups for Exchange Online and SharePoint Online, class teams for Microsoft Teams and OneNote Class notebooks, school groups for Intune for Education, and rostering and SSO integration for many other third party applications.
Please let me know whether this helps,
Diana.