Our primary technology teachers use code.org. They create classes for their students in 2nd grade and then transfer and sort the students into new classes when the students get to 3rd grade. This happens across 4 buildings. I touch 4th grade and have every student in my building. I have the 4th graders use their school Google accounts to sign into everything that we do. Is there a way to have the students sign in with their Google accounts and continue with where they left off in their course when they were in 3rd grade? In other words, is there a way to have the students mesh/pair a Google sign account with an existing account that was setup by a teacher.