It is expected you will adapt sessions to fit your resources, time constraints and group of children. However, take care to preserve the intent of a session and its purpose in the overall program.
Read each session ahead of time, several days before leading it. Getting a feel, doing extra research and following your interests will make the sessions better.
Preparing with co-leaders is very important. Set up the meeting room, ensure the materials and equipment are ready, and be very familiar with the session. Do the Spiritual Preparation exercise together or take a moment before children arrive to share briefly about your expectations for the session.
Keep in mind, and share with co-leaders, all you know about children's family situations and personal sensitivities, and how these might intersect with the day's topics. For example, if a child's family experiences a financial crisis close to a session on privilege or money, both you and the child may encounter an unintended learning experience. Be ready.