Prospective Pedagogy for Teaching Chemical Bonding for Smart and Sustainable Learning

Autor/inn/en	Dhindsa, Harkirat S.; Treagust, David F.
Titel	Prospective Pedagogy for Teaching Chemical Bonding for Smart and Sustainable Learning
Quelle	In: Chemistry Education Research and Practice, 15 (2014) 4, S.435-446 (12 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1756-1108
DOI	10.1039/c4rp00059e
Schlagwörter	Chemistry; Science Instruction; Scientific Concepts; Concept Formation; Teaching Methods; Sequential Learning; Prior Learning; Molecular Structure; Cognitive Processes; Brain Hemisphere Functions; Misconceptions; Secondary School Science; College Science + Suchen Sie Ihr Suchwort? Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Concept learning; Begriffsbildung; Teaching method; Lehrmethode; Unterrichtsmethode; Didaktische Sequenzierung; Lernsequenz; Vorkenntnisse; Cognitive process; Kognitiver Prozess; Missverständnis
Abstract	As an important subject in the curriculum, many students find chemistry concepts difficult to learn and understand. Chemical bonding especially is important in understanding the compositions of chemical compounds and related concepts and research has shown that students struggle with this concept. In this theoretical paper based on analysis of relevant science education research, textbooks, and our classroom observations and teaching experiences, the authors argue that the difficulty in learning chemical bonding concepts is associated with the sequence (ionic, covalent and polar covalent bonding) in which students are taught because this sequence receives little support from constructivist theories of learning. Consequently, the paper proposes a sequence to teach chemical bonding (covalent, polar covalent and ionic bonding) for effective and sustainable learning. In this sequence, the concepts are developed with minimum reorganisation of previously learned information, using a format which is claimed to be easy for students to learn. For teaching these concepts, the use of electronegativity and the overlap of atomic orbitals for all types of bonding have also been stressed. The proposed sequence and emphasis on electronegativity and atomic orbital overlap meets the criteria for teaching and learning of concepts based on the psychology of learning including the theory of constructivism necessitating the construction of new knowledge using related prior knowledge. It also provides a better linkage between the bonding concepts learned at secondary and tertiary levels. Considering these proposed advantages for teaching, this sequence is recommended for further research into effective and sustainable teaching. (As Provided).
Anmerkungen	Royal Society of Chemistry. Thomas Graham House, Science Park, Milton Road, Cambridge, CB4 0WF, UK. Tel: +44-1223 420066; Fax: +44-1223 423623; e-mail: cerp@rsc.org; Web site: http://www.rsc.org/cerp
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01