BLOCK-TIME TEACHING INVOLVES INSTRUCTING A GROUP OF PUPILS FOR TWO OR MORE PERIODS A DAY IN TWO OR MORE SUBJECT AREAS. THIS ENABLES TEACHERS TO KNOW THEIR PUPILS BETTER. CERTAIN FACTORS, HOWEVER, ARE OBSTACLES TO ACHIEVING THE GOALS OF BLOCK-TIME TEACHING. THESE INCLUDE SUCH FACTORS AS SCHOOL ADMINISTRATORS WHO ARE NONCOMMUNICATIVE OR WHOSE PROGRAM SCHEDULING IS INADEQUATE, LACK OF MATERIALS, PUPILS WHOSE WIDE RANGE OF INTERESTS AND ABILITIES MAKES IT DIFFICULT TO MEET INDIVIDUAL NEEDS, SUBJECT MATTER WHICH IS DIFFICULT TO CORRELATE, AND THE TEACHERS THEMSELVES. EDUCATORS WHO ARE CONCERNED ABOUT THE NEED FOR A MOVE TOWARD CORE APPROACHES SHOULD FIND WAYS TO CHANGE THE EDUCATIONAL ENVIRONMENT. THIS ARTICLE WAS PUBLISHED IN "TEACHING CORE," VOLUME 12, NUMBER 2, NOVEMBER 1963.