Specific instructional - staffing standards are defined through state statutes and vary from district to district based on differences in enrollment, such as the number of vocational students. (edweek.org)
However, the transition to market economies led to significant restructuring of school systems and a decline in the number of vocational students. (oecd-ilibrary.org)
And, they have trained more than 30 vocational students in how to install and operate the biodigesters. (aaas.org)