How do you challenge buddies on SAM learning?

Answer 1

You can't. But when one of your buddies finishes a piece of work, you will see the challenge bar at the top of SAM World. This will show you the score that your buddy received. By clicking

Challenge, you can do the same piece of work and see if you can achieve a better score. Once you finish, a message is sent back to your buddy, informing them you have done this piece of work and the result you achieved. Hope this helps! :)

Answer 2

you cant but when 1 of your buddies has completed a task a challenge bar will come up