quinta-feira, 28 de abril de 2016

"Do shorter hours or higher wages make better teachers?"

Artigo The Economist
Do shorter hours or higher wages make better teachers?
http://www.economist.com/blogs/graphicdetail/2016/04/daily-chart-18?fsrc=scn/tw_ec/do_shorter_hours_or_higher_wages_make_better_teachers_

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