Photograph of first grade children building a Celotex house at Alexandria Avenue School, [s.d.]. The small house can be seen in the middle of a classroom at center. Two young boys are putting the finishing touches on the roof while standing on wooden chairs. Two more children are hammering a wooden frame on the floor in the foreground, and still more can be seen working inside the hous. Windows are visible at right, and a coat room is visible at left. Photoprint reads: "photo by Visual Education Division, Los Angeles City School District".