This learning activity packet (LAP) is one of three that accompany the curriculum guide on grinding machines. It outlines the study activities and performance tasks for the third unit of this curriculum guide. Its purpose is to aid the student in attaining a working knowledge of this area of training and in achieving a skilled or moderately skilled competency level in the performance of jobs associated with this specialty. The course of study in this LAP will help the student become able to set up and operate the cylindrical grinder; mount, balance, and dress a grinding wheel; grind work between centers; and regulate wheel speed, work speed, and rate of table travel. Seven tasks are included in the LAP. Contents are a check list of the learning steps, pretest, assignment sheets, and answer keys for the pretest and assignment sheets. (YLB)