Do not use this with actual students. This is a proof of concept to illustrate a series of blog posts. There is no protection of private student data.
This is the only resource in this POC catalog. Click on Share to Classroom to start the process. After you have assigned this LTI Tool to one of your classes, logout and login as a student in that course. Then launch the Tool and force an outcome to be sent back. This POC will receive the LTI outcome and send it on to Google Classroom.