You must be either be logged into a Chromebook OR logged into your school e-mail account through a web browser such as Chrome or Safari.
Step 2. Find your app drawer.
Step 4. Select 'More' and find 'Brain Pop'
Step 5. When Brain Pop opens in a new window, find and choose the picture that says 'Brain Pop Jr.' That is it! No sign in required. You will already be signed in.