Here are some useful links to help you figure out how to do the homework assignments in Sapling Learning (select the link to go to the login page).
In January 2021, Sapling Learning would not work correctly with Android and iOS (mobile devices such as phones and tablets) for things that required dragging boxes and other manipulations. The other things work fine. Play it safe and use a regular laptop/desktop/Chromebook for the Sapling Learning homework!
Troubleshooting browsers (note that Sapling Learning does not support the Microsoft Edge browser). See first bullet above about Android/iOS devices!
I signed up for the wrong course in Sapling (I should be in ASTR B1 instead of ASTR B3 or I should be in ASTR B3 instead of ASTR B1). See "Signed Up For Wrong Course" page.