When I was 18-20, I had a pre-school/Kindergarten Sunday school class. One of the ladies in the church gave me a whole stack of books like the one pictured. At the time, they were still available for purchase in the Christian bookstore, but I'm not sure if they are still being published.
I have used these books over and over again, in the various places we have been. For example--in Sunday school, junior church, vacation Bible school, while babysitting, when I taught school, and subsituting for various Sunday school and junior church teachers. These books have large pictures on one side of the page, and on the back of the picture, they have the story for the teacher to read.
Tonight Kevin and I did the children's class for a couple who is on vacation. Having these books on hand made it easy to prepare for a lesson--just grab the book and go! I'm familiar enough with the story that I can read it and look out at the children as I read, so it doesn't feel as though I'm reading it.
As I read, I try to use good expression, and really get into the story myself. The children all sat very quietly and listened--even the "big kid" 6th graders.
Materials like these are wonderful to have even if you don't teach a class every week. If you have oportunity to purchase similar stories, do, and see how God can use them through you!
P.s. I changed the name of the boy in the story to "Tommy", that way the kids who might know my husband's name don't get all goofy. *Grin*