In this chapter, eight foci relevant for science educators are presented and illustrated by paradigmatic examples and discussed in two parts. The first part "from science education to practice and authorities" discusses the four foci of: (1) developing concepts for instruction; (2) responding to the needs of schools; (3) connecting…

In view of the perceived difficulty of organic chemistry unit for high schools students, this study examined the usefulness of concept mapping as a testing device to assess students' difficulty in the select areas. Since many tests used for identifying students misconceptions and difficulties in school subjects are observed to favour one or the…