This is one of 14 country studies which together with a final volume of summary and analysis will comprise a comprehensive Report on the Supply of Secondary Level Teachers in English-Speaking Africa. Each study is focused on the problem of determining the likely demand for overseas personnel for staffing secondary level institutions through 1975. Each gives a short description of the country's geographic, economic, and political situation; traces the development of secondary education and makes projections for the future; assesses the present and future supply of secondary level teachers in each field; and draws conclusions as to the resulting demand for expatriate secondary level teachers. A final chapter draws implications and makes recommendations for long-range planning. The Tanzania study finds that, by careful educational planning, Tanzania has rapidly localized its secondary level teaching force and is unlikely to need many expatriate teachers after 1973. (Other studies in the series are SP 004 605-SP 004 610, and SP 004 612.) (RT)