You seem to look for a specific dataset.
If all of your students are only interested in learning the Cypher language quickly in a graph database that you created from a relational database. I think the quickest path would be to:
1 - Get Neo4j Desktop app
2 - Create en empty local neo4j database with the add button
2 - Start your RDBMS hosting your SQL database
3 - Use the ETL tool app in the Neo4j desktop to fill your neo4j database with your SQL data
4 - Export the .dump with the Neo4j Desktop DBMS buttons to create a backup
5 - Give the .dump to your student
For your student
1 - Install Neo4j Desktop ( If it's their personal computer )
1 - Open their Neo4j Desktop app
2 - Add the dump file provided by you in their Neo4j Desktop
3 - Create the a database from the dump file, 3 dots button by the file in Neo4j Desktop
4 - Start the database and Enjoying it!
None of these steps required knowledge of importation process with APOC, command lines or Cypher clauses, it's all user friendly and can be done in quickly, mostly for your student.
I was wondering if it's possible to dump the file in an online empty Sandbox, @abk , you won't have the guides in the empty sandbox I think and you will be able to share a link to your students without having to care about their Neo4j Desktop installation process. But you will have to be careful about the network of the school.
If you needs are more complex, all @abk said is the way to go.
By the way, I'm jealous a bit. I'm a teacher in my heart and I would love to teach it.