Creating you own account is your first step- it can link to your google account or you can create one from your email. If students are under the age of 12 they can use your account or you have their parent set them up their own account.
You can make a classroom account- make sure the subtitle is always their name.. to help it stay organized.
Following the program is very simple- adding text, pictures, and videos at their fingertips.
Photo grids.. glideshows... text.. all at the plus sign.