A sample of 348 secondary teachers in England and Wales kept a week's record of their work and completed a questionnaire on time usage. The survey indicated that the total mean time spent on work and work-related activities was 54.4 hours per week. Of this, teachers spent 16.9 hours on teaching, 12.9 hours on preparation, 18.1 hours in administration, 5.3 hours in professional development, and 4.1 hours on other activities. The study concluded with five general findings: (1) there are at least two, very different kinds of workload, involving management and teaching; (2) the match between teachers' academic background and their current teaching duties was determined to be poor for 18 percent of teachers based on objective definitions and for 40 percent of teachers based on teachers' evaluations of their academic background; (3) the more hours teachers thought it reasonable for them to be expected to work in nondirected time, the more time they actually spent; (4) there was no significant difference in the amount of time spent on work overall by men and women teachers; and (5) only 6 percent of teachers saw themselves as having responsibility for delivery of the national curriculum. Relevant policy issues are discussed. (Contains approximately 40 references.) (JDD)