Sometimes links work. Sometimes they don't. So far, this is the most successful way to create links. Please watch the tutorial below for a step-by-step directions.
1. Find your links.
2. Create links in a Google Doc.
3. Download the document to a PDF.
4. Go to Seesaw and create an activity.
5. Select "Add Multimedia Instructions or Example.
6. Select the Upload icon and upload the PDF.
7. Save the activity.
8. If you children are having trouble making the links work, post this.