Choo! Choo! ... All Aboard the K3 Train! Mrs. Browning and Mrs. Dickens’ Pre-K3 classes made edible trains in the Imagination Station while studying the letter “T.” They learned about all types of locomotives and transportation. This fun activity and tasty treat also reinforced recognizing shapes. STJ’s elementary Imagination Station is a fully-stocked design lab, offering a space outside the classroom to build, discover, and practice S.T.E.A.M. skills (science, technology, engineering, art, and math).