Final answer:
To share your activity on Khan Academy with your teacher, you would need to add your teacher as a 'coach' using their email address. Once they accept, they can see your course progress, skill mastery, and resource usage.
Step-by-step explanation:
To share your activity with your teacher on Khan Academy, first, you have to add your teacher's email address. You can do this by going to your settings and clicking on the 'add a coach' option. Enter your teacher's email address, and click 'Invite'.
Once your teacher accepts the invitation, they will be able to see your 'activity' such as course progress, skill mastery, and resource usage.
It's worth mentioning that outstanding students benefit from sharing their activity as it allows teachers to provide more personalized guidance and aid.
Learn more about Sharing Activity on Khan Academy