It depends on how involved the apprentice is. If they're just following you, then no. If they're occupying some of your tables because they've already done basic training and you're just supervising, then they should get the full tip for that table. It doesn't have to be an all-day event, but as a restaurant owner, it's a good idea to sit down with new employees and spend some time alone with you.
This is especially important if you're not in your restaurant every day, as it allows them to see and get to know you as a person. Tell them about your background, the history of the restaurant, and any other background information you can. Formal training will include a training plan for restaurant staff or a system for explaining everything that is in the restaurant. Training your waiters in the TIPS program has many benefits, including additional protection against alcohol liability lawsuits.
All you have to do is buy an eTips training passport for every employee who wants to receive alcohol training.