Abstract
This study examined the effectiveness of a preteaching strategy as a subordinate procedure of Direct Instruction.Skill‐deficient second‐graders were provided with repeated trials on a selected component skill of a subtraction algorithm beforethey worked the entire algorithm and compared with students who, from the beginning of training, received systematic instruction on working the entire algorithm. Statistically significant differences favouring the preteaching strategy group were found on periodic probe measures taken during training but not on a 12‐item post test nor on a ten‐problem maintenance test administered eight days later. Implications for using preteaching as an instructional procedure for inducing efficiency in the use of problem‐solving strategies are discussed.