It's possible you'll check in both using the "Sign in with ClassLink" choice to register to the two ClassLink and Backpack, or by using the "Check in to Backpack Only" selection and getting into your district username/email and password. To inquire what your district e mail and password are, remember https://deanbyint.acidblog.net/64838988/helping-the-others-realize-the-advantages-of-backpack