In school, teachers know exactly what they are going to teach young people each year, and we really should be thinking the same in our churches. We may have a student for 4 or 5 years. What do we want that young person to know in their time in your ministry? Having a long-range approach to curriculum planning helps avoid two common mistakes: 1) teaching on our pet topics over and over again, and 2) falling victim to every new curriculum that comes on to the market.
Have a look at this this example of Long Range Planning by Duffy Robbins when thinking about long range planning. And here is a blank one to fill out for your ministry.