The Story of St George for Scouts to act out before reflecting on own challenge to 'do your best'.
how have you done your best worksheet per Scout
Read out the script, reflect (You may like one of the leaders to give their own example of when they've done their best)
Distribute sheet to complete sheet. Ask PLs to run their patrol, provide a leader per patrol to supervise and faciliate.
If struggling they could use Home, School and Scouting for the three occasions.
If still struggling, ask them to reflect on when not doing their best gave a poor outcome and what they could do differently next time