One of the most needed resources in ministry with children is a go-to handbook for volunteers. Though each church will have its own unique way of doing things, the basic points remain pretty consistent across the board.
This particular version of a volunteer handbook was developed for a congregation with about 30 active children and 10 regular volunteers for Sunday school. It covers our standards for Safe Sanctuaries as well as procedures for lesson plans and materials. My recommendation is to give every volunteer a copy of this handbook during a startup orientation at the beginning of a new year of Sunday school.