The BLS reported that the top ten percent of preschool teachers made $48,660 or more each year, while the bottom ten percent of earners took in $18,090 or less annually.ob Description. As a preschool teacher, you'll help educate and watch over children who are 3-5 years old. You'll be expected to interact with an entire classroom at one time, but when necessary, you'll give individual attention to each student. Your end goal is to prepare your students to enter kindergarten.