The blackboard clock

This manual gives teachers step-by-step instructions for constructing a large blackboard clock, including materials and fastening options for the hour and minute hands. It outlines sequential lessons to teach time, beginning with counting to sixty and writing numbers to twelve and developing the concept of minutes and hours. The text explains the distinct roles of the minute and hour hands and demonstrates methods for teaching o'clock, half past, quarter hours, and minutes past or to. It supplies classroom exercises and drills—individual practice, teacher-directed placement of hands, and timing activities—to build accuracy and classroom decorum. It also recommends rhythmic movement drills and summarizes basic time relations such as seconds, minutes, hours, days, and weeks.