Don't wait until positions are needed before seeking and training volunteers. It's easy to come to the end of the ministry year and desperately need three small group or Sunday school leaders and then frantically look for people to fill slots, rather than placing trained people in ministries suited to their gifts. Be careful about recruiting teachers through mass appeals. Some may respond out of the wrong motives, such as the desire for acceptance, the desire to impress, or a sense of pity for the poor youth class with no teacher. Make job descriptions clear.
Some volunteers fear being put in a perpetual teacher's position.
A job description calling for a one-year commitment can alleviate those fears. Time limits can also make terminating a teacher less traumatic. Put the descriptions in writing. Without a job description, volunteers may never know if they are failing or succeeding. When you recruit, let volunteers know exactly what is expected of the position.