0 Commonwealth of Kentucky 0 EnucAmNAL BULLETIN UNIT TEACHING IN THE ELEMENTARY SCHOOL Published by DEPARTMENT n F EDUCATION BOSWELL B. HODGKIN Superintendent of Public Instruction ISSUED MONTHLY Entered as second-ciass matter March 21, 1933, at the post office at Frankfort, Kentucky, under the Act of August 24, 1912. VOL. XIX MAY, I95I No. 3