Malara, N.A., Navarra, G. (2016), Principles and tools for teachers’ education and the assessment of their professional growth, in Krainer, K., Vondrova, N. (eds) proceedings of Ninth Congress of the European Society for Research in Mathematics Education (CERME 9, 4-8 February 2015) (pp. 2854-2860). Prague, Czech Republic: Charles University in Prague, Faculty of Education and »