Sets: one topic's materials together
A set gathers existing materials on one theme, so you can find them again and place the whole bundle in a worksheet. Nothing is copied: a set points to the originals.
When to use it
Use a set for material you keep coming back to: instructions and discussion questions for a field trip, a bank of questions on one topic, background reading for a unit.
A set is not a folder. Folders are private and only sort My materials; a set can be placed in a worksheet and shared. It is not a collection either. A collection holds its lessons inside it, while a set only names its members: they stay where they are, one material can be in many sets, and an edit to the material shows wherever it appears.
Making a set and using it
Open Sets in the sidebar and click New set.
Give it a title and a description that says what it is for, then click Save.
On the set's page, click Add content. Search the repository panel that opens and click Add to set on each material you want. Clicking the card itself only opens it.
Open any member to check its content before you rely on it.
To use the set in a lesson, click the + in a worksheet, open the Sets tab, find your set and click it.
In the lesson, Browse set opens the set, and each material opens from there.
Tips
You can add from other places too: select materials in the Repository, or open a card's menu in My materials, and choose Add to set.
Edit set lets you Add a filter. New material that matches the filter then joins the set by itself, alongside the items you picked.
Remove from set takes an item out of the set without deleting the material.
People you share a set with see only the members they can open themselves. If a set holds material you do not own, they may see less than you do.