About us. We help preschoolers(ages 3–4) build confidence with activities that encourage them to become problem solvers and lifelong learners. And we make sure pre-kindergartners (ages 4–5) are kindergarten-ready. St. John's Lutheran Preschool is seeking a part-time Teacher assistant staff member. Hours. Monday - Friday from 6:30- 1 pm and 1:00pm- 5:30 pm. Requirements. Must be 17 years. Ability to pass a background check and drug test. Ability t...