There are so many methods and approaches to teaching that it is sometimes difficult to choose the approach best suited to the needs of the students. This study sought to ascertain the relative effectiveness and efficiency of selected approaches to the demonstration of complex manipulative sequences, and to test the theory that students of high intelligence will learn manipulative sequences more rapidly than students of low intelligence. The method involved three treatments of a super 8mm sound-color film of a demonstration of vacuum forming, and the population consisted of 125 seventh and eighth grade boys enrolled in their first industrial arts course. Three groups of students viewed different treatments of the film and were then permitted to practice the procedures. This was followed by testing sessions. Among the Conclusions were: (1) The attitude, the cognitive understanding, and the retention of this understanding will be essentially the same when either of the three treatments are used and (2) The grouping of students based on intelligence will not improve the student's chances of learning complex manipulative sequences. (Author/JS)