Why we should teach the Bohr model and how to teach it effectively

Some education researchers have claimed that we should not teach the Bohr model of the atom because it inhibits students’ ability to learn the true quantum nature of electrons in atoms. Although the evidence for this claim is weak, many have accepted it. This claim has implications for how to presen...

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Main Authors: S. B. McKagan, K. K. Perkins, C. E. Wieman
Format: Article
Language:English
Published: American Physical Society 2008-03-01
Series:Physical Review Special Topics. Physics Education Research
Online Access:http://doi.org/10.1103/PhysRevSTPER.4.010103
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author S. B. McKagan
K. K. Perkins
C. E. Wieman
author_facet S. B. McKagan
K. K. Perkins
C. E. Wieman
author_sort S. B. McKagan
collection DOAJ
description Some education researchers have claimed that we should not teach the Bohr model of the atom because it inhibits students’ ability to learn the true quantum nature of electrons in atoms. Although the evidence for this claim is weak, many have accepted it. This claim has implications for how to present atoms in classes ranging from elementary school to graduate school. We present results from a study designed to test this claim by developing a curriculum on models of the atom, including the Bohr and Schrödinger models. We examine student descriptions of atoms on final exams in transformed modern physics classes using various versions of this curriculum. We find that if the curriculum does not include sufficient connections between different models, many students still have a Bohr-like view of atoms rather than a more accurate Schrödinger model. However, with an improved curriculum designed to develop model-building skills and with better integration between different models, it is possible to get most students to describe atoms using the Schrödinger model. In comparing our results with previous research, we find that comparing and contrasting different models is a key feature of a curriculum that helps students move beyond the Bohr model and adopt Schrödinger’s view of the atom. We find that understanding the reasons for the development of models is much more difficult for students than understanding the features of the models. We also present interactive computer simulations designed to help students build models of the atom more effectively.
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spelling doaj.art-5e2cb0e6d9d248618e15155109425cef2022-12-21T22:59:12ZengAmerican Physical SocietyPhysical Review Special Topics. Physics Education Research1554-91782008-03-014101010310.1103/PhysRevSTPER.4.010103Why we should teach the Bohr model and how to teach it effectivelyS. B. McKaganK. K. PerkinsC. E. WiemanSome education researchers have claimed that we should not teach the Bohr model of the atom because it inhibits students’ ability to learn the true quantum nature of electrons in atoms. Although the evidence for this claim is weak, many have accepted it. This claim has implications for how to present atoms in classes ranging from elementary school to graduate school. We present results from a study designed to test this claim by developing a curriculum on models of the atom, including the Bohr and Schrödinger models. We examine student descriptions of atoms on final exams in transformed modern physics classes using various versions of this curriculum. We find that if the curriculum does not include sufficient connections between different models, many students still have a Bohr-like view of atoms rather than a more accurate Schrödinger model. However, with an improved curriculum designed to develop model-building skills and with better integration between different models, it is possible to get most students to describe atoms using the Schrödinger model. In comparing our results with previous research, we find that comparing and contrasting different models is a key feature of a curriculum that helps students move beyond the Bohr model and adopt Schrödinger’s view of the atom. We find that understanding the reasons for the development of models is much more difficult for students than understanding the features of the models. We also present interactive computer simulations designed to help students build models of the atom more effectively.http://doi.org/10.1103/PhysRevSTPER.4.010103
spellingShingle S. B. McKagan
K. K. Perkins
C. E. Wieman
Why we should teach the Bohr model and how to teach it effectively
Physical Review Special Topics. Physics Education Research
title Why we should teach the Bohr model and how to teach it effectively
title_full Why we should teach the Bohr model and how to teach it effectively
title_fullStr Why we should teach the Bohr model and how to teach it effectively
title_full_unstemmed Why we should teach the Bohr model and how to teach it effectively
title_short Why we should teach the Bohr model and how to teach it effectively
title_sort why we should teach the bohr model and how to teach it effectively
url http://doi.org/10.1103/PhysRevSTPER.4.010103
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