Student Accounts-How to set up a GATE Computer Club

I am a Technology Resource Teacher at my school and a GATE teacher. I want to start an after school computer club, using Discovery Education Streaming assets. My question is very basic, as we just got our subscription.How do students log in to access content. I know that when I signed up, I used the master passcode and then created my own profile. I also know that included and Email address, at which I was sent a confirmation. Many of our students are lower socioeconomically and don’t have an Email address, nor does our district provide one. How would they go about creating their own account/log in?Thank you for any help.