Using historical approach to teach both NOS and science is seen necessary because of teachers’ attitudes and requirements of curriculum (e.g. Ho¨ttecke and Silva 2011; Monk and Osborne 1997). However, merely including history of science content into teaching does not support learning NOS content (Abd-El-Khalick and Lederman 2000a). For succesfull learning of NOS content, the discussion on the NOS issues to be learned about should be explicit and reflective (Abd-El-Khalick and Ledermann 2000b; Rudge and Howe 2009).