USA: „Nationally, about 30 percent of new teachers leave the profession after five years.“
Univ.-Prof. Dr. Matthew Ronfeldt u. a., „How teacher turnover harms student achievement“ (2011), S. 1
USA: „Nationally, about 30 percent of new teachers leave the profession after five years.“
Univ.-Prof. Dr. Matthew Ronfeldt u. a., „How teacher turnover harms student achievement“ (2011), S. 1