8Rachael Lancor. Using Metaphor Theory to Examine Concepti- ons of Energy in Biology, Chemistry, and Physics. Science & Education,2014,23 (6) : 1245.
9Anna Vikstrtim. What is Intended, What is Realized, and What is Learned? Teaching and Learning Biology in the Pri- mary School Classroom. Journal of Science Teacher Education, 2008,19(3):211.