Two school buildings are decorated with murals. First, on the side of 711 Lester St. (at 1st Avenue) — a former convenience store that's now part of the school:
Just south of there is the entrance to the preschool, on the south side of 1730 N. 1st Avenue:
I took the photos in October and November of last year.
Update (November 17, 2014): When the school moved, it left colorful walls behind.