This organization has contributed to the following objects in the Encyclopedia.Teacher explains fractions to students on WFIL-TV’s “Studio Schoolhouse” program, 1956A teacher explains fractions to students on WFIL-TV’s “Studio Schoolhouse” program, 1956.Woman holds a WFIL-TV sign, late 1940sA woman holds a WFIL-TV sign, late 1940s
Teacher explains fractions to students on WFIL-TV’s “Studio Schoolhouse” program, 1956A teacher explains fractions to students on WFIL-TV’s “Studio Schoolhouse” program, 1956.