A study was conducted to determine how 11,400 minutes were spent by 186 students in 10 classes in three secondary vocational education program areas (agricultural education, marketing and distributive education, and trade and industrial education) in seven high schools and area vocational schools in four states. The study attempted to find out how much time was spent on task and content as compared with time spent on noncontent and off task time such as breaks and doing nothing. Teachers' time also was recorded by two observers during 99 class periods over two weeks. Some of the findings include: (1) about 56 percent of the class time was spent on content by the students, although teachers allotted about 67 percent of time for content; (2) the proportions of time usage varied greatly among the individual classes as did the amount of time students were absent or late; (3) the amount of time on task spent by students varied widely--more among students in different classes than among students in the same class; (4) students spent the greatest time on task in long classes (146-176 minutes) with fewer students; (5) trade and industrial classes and agricultural classes had greater time on task than the marketing and distributive education classes; and (6) on the average, teachers spent 29 percent of their time providing one-to-one instruction. The study concluded that no typical class represented all vocational education classes. However, baseline data were provided that can be used for further research into how time on task affects student learning in vocational classes. (KC)