Using your login cards is great for the first lesson, but it's slow to type it into the web address every time.
It's much easier to create a desktop shortcut. Then you can reach the login page with a single click at the start of each lesson.
The screenshots below show you how to do this on common devices and web browsers. Ask your teacher if your device isn't shown here.
On an iPad with Safari
On Windows with Google Chrome
On Windows with Mozilla Firefox