Your home screen holds two kinds of space. A personal one is private; a class space is shared, and everything in it belongs to the class rather than to whoever typed it.

In this clip

• Personal space — your private thinking room, for working an idea out before you share it
• Class space — shared, where anyone can read, connect to, and build on anything
• Opening a class space and seeing the whole page at once
• How cards name their author without making that person their owner
• Seeing who else is in the space, and watching a card glow when someone selects it

Try it: Open your class space and find a card you didn’t write that you’d like to improve. Improving someone else’s idea is the normal move here, not an intrusion.