This study evaluated the effectiveness of the constant time delay procedure, while comparing the efficiency of using teacher-selected and student-selected material prompts, in teaching multiplication facts to 4 male students with learning disabilities (ages 9 to 13). Results indicated that the time delay procedure was most efficient when students…

This study demonstrated the effectiveness and efficiency of a constant time delay procedure (four seconds) to teach five elementary students with learning disabilities multiplication facts. Learning generalized to a paper-and-pencil task, to a different presentation orientation, and to reverse facts. (DB)

Three experiments compared the effects of interspersal drill and practice using 30% new items/70% review items with 100% new items, with a total of 17 students (ages 9 to 17) having behavior disorders, emotional handicaps, learning disabilities, or mild mental retardation. The ratios were compared for instruction in spelling, multiplication facts,…