We don’t have a printer at home how do we submit the work?

You don’t need to have a printer at home. If you take a picture on any phone you can submit the picture of the work. It is easier on a phone to do this through the app:

iPhone: https://helpcentre.fireflylearning.com/students/app/ios/tasks/responding-to-tasks
Android: https://helpcentre.fireflylearning.com/students/app/android/tasks/responding-to-tasks

Even if you don’t have a phone or tablet which can take a picture, any camera image can be uploaded as work submission just like any other file.