Physics education

Physics education refers to the methods currently used to teach physics. Physics Education Research refers to an area of pedagogical research that seeks to improve those methods. Historically, physics has been taught at the high school and college level primarily by the lecture method together with laboratory exercises aimed at verifying concepts taught in the lectures. These concepts are better understood when lectures are accompanied with demonstration, hand-on experiments, and questions that require students to ponder what will happen in an experiment and why. Students who participate in active learning for example with hands-on experiments learn through self-discovery. By trial and error they learn to change their preconceptions about phenomena in physics and discover the underlying concepts.

Ancient Greece

Aristotle wrote what is considered now as the first textbook of physics.[1] Aristotle's ideas were taught unchanged until the Late Middle Ages, when scientists started making discoveries that didn't fit them. For example, Copernicus' discovery contradicted Aristotle's idea of an Earth-centric universe. Aristotle's ideas about motion weren't displaced until the end of the 17th century, when Newton published his ideas.

Today's physics students keep thinking of physics concepts in Aristotelian terms, despite being taught only Newtonian concepts.[2]

Hong Kong

High schools

In Hong Kong, physics is a subject for public examination. Local students in Form 6 take the public exam of Hong Kong Diploma of Secondary Education (HKDSE).[3]

Compare to the other syllabus include GCSE, GCE etc which learn wider and boarder of different topics, the Hong Kong syllabus is learning more deeply and more challenges with calculations.[4] Topics are narrow down to a smaller amount compared to the A-level due to the insufficient teaching hours at secondary schools in Hong Kong, which include temperature, heat, internal energy, change of state, gases, position, motion, force, projectile motion, work, energy, power, momentum, uniform circular motion, gravitation, wave, light, sound, electrostatics, circuits, electromagnetism, radiation, radioactivity, atomic model, nuclear energy, universe, astronomy, stars, Rutherford model, photoelectric effect, Bohr model, particles, nanoscopic scale, building, transportation, renewable energy sources, eye, ear, non-ionizing radiation and ionizing radiation etc.[4]

Some schools only allow students choose physics as elective subject since Form 4[5], some schools provide physics compulsory curriculum in Form 3 and then allow students to choose in Form 4[6], and some other schools allow students choose physics as elective subject since Form 3.[7] Also, most schools use English language as the medium of instruction for physics[6][7], whereas a few of the schools use Chinese language as the medium of instruction for physics[5].

Other than having lectures in classrooms or laboratories, schools in Hong Kong organise outside-school activities to motivate students learning Physics.[8]

Universities

Pure Physics major programmes are provided in the Chinese University of Hong Kong (CUHK)[9], Hong Kong University of Science and Technology (HKUST)[10] and University of Hong Kong (HKU).[11] Topics include engineering physics, mechanics, thermodynamics, fluids, wave, optics, modern physics, laboratory, heat, electromagnetism, quantitative methods, computational physics, astronomy, astrophysics, classical mechanics, quantum mechanics, quantum information, statistical physics, theoretical physics, computer simulation, soft matter, practical electronics, contemporary physics, instrumentation, statistical mechanics, solid state physics, meteorology, nanoscience, optical physics, theory of relativity and particle physics etc.[12]

There are different approaches of delivering physics lectures in different universities in Hong Kong. In CUHK, most relevant knowledge including quantitative methods and computer simulation are learnt in the Department of Physics, which may let the students learn deeper into the concept that applied to the physics problems[12], whereas in HKUST, quantitative methods and computer simulation are learnt by students in the courses delivered by Department of Mathematics and Department of Computer Science respectively which allow the students to learn boarder with knowledge of different aspects.[13]

There are also Enrichment Stream in Theoretical Physics offered by CUHK[14] and International Research Enrichment Track offered by HKUST[13]. In that stream, additional topics include astrophysics, particle physics, computational physics, and quantum physics. The practices of solving theoretical systems and the discussions of physical insight are very in-depth, which promote the graduates into a high level of the understanding of physics. However, the working opportunity for graduates with theoretical background in Hong Kong is too narrow. Most graduates pursue further studies overseas or become teachers.[14]

Moreover, Applied Physics major programmes are offered only in most other universities in Hong Kong.

United States

High schools

Physics is taught in high schools, college and graduate schools. In the US, it has traditionally not been introduced until junior or senior year (i.e. 11th/12th), and then only as an elective or optional science course, which the majority of American high school students have not taken. Recently in the past years, many students have been taking it their sophomore year.

Physics First is a popular and relatively new movement in American high schools. In schools with this curriculum 9th grade students take a course with introductory physics education. This is meant to enrich students understanding of physics, and allow for more detail to be taught in subsequent high school biology, and chemistry classes; it also aims to increase the number of students who go on to take 12th grade physics or AP Physics (both of which are generally electives in American high schools.) But many scientists and educators argue that freshmen do not have an adequate background in mathematics to be able to fully comprehend a complete physics curriculum, and that therefore quality of a physics education is lost. While physics requires knowledge of vectors and some basic trigonometry, many students in the Physics First program take the course in conjunction with Geometry. They suggest that instead students first take biology and chemistry which are less mathematics-intensive so that by the time they are in their junior year, students will be advanced enough in mathematics with either an Algebra 2 or pre-calculus education to be able to fully grasp the concepts presented in physics. Some argue this even further, saying that at least calculus should be a prerequisite for physics.

Universities

Undergraduate physics curricula in American universities includes courses for students choosing an academic major in physics, as well as for students majoring in other disciplines for whom physics courses provide essential prerequisite skills and knowledge. The term physics major can refer to the academic major in physics or to a student or graduate who has chosen to major in physics.

Physics courses for non-science majors in the university are usually survey-type courses. The topics covered in courses varies widely, but they are covered shallowly in comparison to more specialized classes for physics majors. Lectures in this area often involve physical demonstrations that aid in the understanding of course material that may be difficult to understand. Students do not need to know how to use formulas requiring advanced mathematics. The content of the course typically requires the use of basic algebra. Tangible applications of course material is typically emphasized. Some courses involve a laboratory component in addition to a lecture portion. The content of the laboratory is usually related to the content of the lecture. Laboratory study gives students experience in doing hands on work with topics covered in lecture. Often labs are administered in a proctored environment, with instructors or assistants providing support and direction to students.

Physics courses for science or engineering majors usually explore deeper than the survey courses. The content of each individual course might not have as great of scope as survey-type courses, but the greater depth in each topic provides added instruction in areas specific to the students' curriculum. Physics courses for science majors typically have more advanced prerequisite mathematics courses that allows topics within physics to be explored on a more mathematical level. Common prerequisite courses include calculus and differential equations. Teaching in these courses often involves utilizing mathematics to derive formulas, leading to a more mathematical understanding of the physics being taught.

The courses for physics majors are typically even more advanced. At the beginning of the college, their courses have few differences with the physics courses for the general education of science major. After the first year, the physics majors need to go up and study many deeper knowledge. The first change of the course is that the scale of the courses is much more smaller than before due to the different major of students in high grade. And for the content of the course, the quantitative analysis is really important. Meanwhile, there is usually a solid of homework. The grades of the students are largely decided by the homework and exams. The non-academic part, such as participation, discussion, would have little weight. Each year, there are some specific required courses. But students usually can make some change due to their own ability. Students who are enthusiastic can take the graduate level course in senior year.  There are also some purely lab courses, which teach students how to do the advanced experiment and write the lab report.

Teaching strategies

Teaching strategies are the various techniques used by the teachers to facilitate the students with different learning styles. The different teaching strategies help teachers to develop critical thinking among students and effectively engaging them in the classroom. The selection of teaching strategies depends on the concept to be taught and also on the interest of the students.

Methods/Approaches for teaching physics

  • Lecture Method: Lecturing is the one of the traditional way of teaching science. Since most teachers are taught by this method they continue to use the method in spite of many limitations as it is very much convenient. This method is teacher centric and the role of the lecturer is supreme. Lecture method is ineffective in developing critical thinking and scientific attitude among children.
  • Recitation Method: In this method the role of student is more compared to the lecture method. This method is also known as Socratic Method where the teacher will ask questions and trigger the thoughts of the students. This method is very effective in developing higher order thinking in pupils. To apply this strategy the children should be partially informed about the content. Recitation method will be ineffective if the questions are not well prepared. This method is student centric.
  • Demonstration Method: In this method the teacher perform certain experiments which students observe and put questions related to the experiment. After completion the teacher can ask questions to explain each and every step that is performed. This method is effective as science is not completely a theoretical subject.
  • Lecture-cum-Demonstration method: As the title suggest it is the combination of two methods lecture method and demonstration method. It is a simple method where the teacher perform the experiment and explain simultaneously. By this method the teacher can provide more information in less time. But the learners only observe, they don't get hands on experience. And it is not possible to teach all topics by this method.[15]

Research

Number of Publications on Students' Ideas on the Bibliography by Duit (2005)
FragmentPublication

Mechanics (force)*792
Electricity (electrical circuit)444
Optics234
Particle model226
Thermal physics (heat/temp.)192
Energy176
Astronomy (Earth in space)121
Quantum physics77
Nonlinear systems (chaos)35
Sound28
Magnetism25
Relativity8

* Predominant concept in brackets.
Adapted from Duit, R., H. Niedderer and H. Schecker (see ref.).

Physics education research is a sub-division within physics and is the study of how physics is taught and how students learn physics.

See also

References

  1. Angelo Armenti (1992), The Physics of Sports, 1 (2, illustrated ed.), Springer, ISBN 978-0-88318-946-7 citing R.B Lindsay, Basic concepts of Physics (Van Nostrand Reinhold, New York, 1971), Appendix 1
  2. Ibrahim Abou Halloun; David Hestenes (1985), "Common sense concepts about motion" (PDF), American Journal of Physics, 53 (11): 1056–1065, Bibcode:1985AmJPh..53.1056H, doi:10.1119/1.14031, archived from the original (PDF) on September 11, 2006 as cited by many scholar books
  3. "Introduction to HKDSE Physics Examination". Hong Kong Examinations and Assessment Authority. Retrieved 1 May 2020.
  4. "Introduction to HKDSE Physics". Education Bureau. Retrieved 1 May 2020.
  5. "Example of a school in Hong Kong that allows students choose Physics as elective subject since Form 4, as well as an example of school use Chinese language to teach Physics" (PDF). New Asia Middle School. Retrieved 1 May 2020.
  6. "Example of a school in Hong Kong that provides Physics compulsory curriculum in Form 3, as well as an example of school use English language to teach Physics". St. Teresa Secondary School. Retrieved 1 May 2020.
  7. Example of a school in Hong Kong that allows students choose Physics as elective subject since Form 3 (PDF). YMCA of Hong Kong Christian College. 2019. Retrieved 1 May 2020.
  8. "Physics Corner". YMCA of Hong Kong Christian College. Retrieved 1 May 2020.
  9. "Department of Physics". Chinese University of Hong Kong. Retrieved 1 May 2020.
  10. "Department of Physics". Hong Kong University of Science and Technology. Retrieved 1 May 2020.
  11. "Department of Physics". University of Hong Kong. Retrieved 1 May 2020.
  12. "Course List". Chinese University of Hong Kong. Retrieved 1 May 2020.
  13. "BSc in Physics". Hong Kong University of Science and Technology. Retrieved 1 May 2020.
  14. "ADMISSION". Chinese University of Hong Kong. Retrieved 1 May 2020.
  15. vaidya (1999). Science teaching for the 21st century. Deep & Deep publications. pp. 181–201. ISBN 978-8171008117.

Further reading

PER Reviews:

Miscellaneous:

  • Duit, R., H. Niedderer and H. Schecker (2006). "Teaching Physics". Handbook of Research on Science Education: pg. 606.CS1 maint: multiple names: authors list (link)
  • Lillian C. McDermott (1993). "Guest Comment: How we teach and how students learn---A mismatch?". American Journal of Physics. 61 (4): 295–298. Bibcode:1993AmJPh..61..295M. doi:10.1119/1.17258. Archived from the original on 2013-01-12.
  • H. Dahncke; et al. (2001). "Science education versus science in the academy: Questions---discussions---perspectives (in Research in Science Education -- Past, Present and Future)": 43–48. Cite journal requires |journal= (help)
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