HI, Kristin!
In addition to Neil's suggestions above, other things that could fill up a little bit more time:
- Memory verse games and activities. Have a time when the students can repeat the memory verse (and maybe some catechism question answers) to a Shepherd or other helper.
- Journaling time to reflect on the lesson. Information here and here.
- Depending on your evening schedule, a time for snacks or dinner -- with time to get to know the leaders through conversation.