To add a file to a step, first click Add Item at the bottom of the step. In the new Item that appears, select File as the Item Type. To upload the file, click Choose File and browse to the file you wish to add. Once the file has been selected, click Open. In the Description window you can add a description. The students will see the file name as a link, as well as the description. When you’re done editing the item, click Done.
On the student’s side, they will be able to download the file using the link you’ve created.