„In many countries around the world, high attrition rates are considered to be the most important factor contributing to the shortage of qualified science teachers.“
OECD (Hrsg.), „PISA in Focus 81“ (Februar 2018), S. 2
„In many countries around the world, high attrition rates are considered to be the most important factor contributing to the shortage of qualified science teachers.“
OECD (Hrsg.), „PISA in Focus 81“ (Februar 2018), S. 2