It sounds like he doesn't understand what's expected for some of the assignments so I would ask if they can have a short one-on-one before he gets started to make sure he understands, and see if he has a plan for what he's going to do. Then check back with him as he's working to encourage/assist as needed. They did that with the salt harvester, but if there is a plan put into place ahead of time, that will avoid a lot of frustration.