When checking people in you will notice that each room/location displays the count of participants and volunteers checked into the room. As shown in the image below, the 2nd Grade room has 2 participants checked in and 0 volunteers.
This could be a red flag to your volunteers. In fact, you could train volunteers to check participants in but to direct them to another class where a volunteer has already checked in. This is something that you will want to discuss with your Fellowship Technologies delivery manager who will be able to help you define a good process for your church.