The Development of Pedagogical Content Knowledge about Teaching Redox Reactions in German Chemistry Teacher Education
Abstract
:1. Introduction
2. Theoretical Framework
3. Materials and Methods
3.1. Background
3.2. Participants
3.3. Data Collection
3.4. Data Analysis
4. Results and Discussion
4.1. Knowledge of the Science Curriculum
4.2. Knowledge of Students’ Understanding of Science
4.3. Knowledge of Instructional Strategies
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Appendix A
Appendix B
- (1)
- Can you describe for me your professional career from graduation until today?
- (2)
- Do you teach (or have you ever taught) redox reactions?
- (a)
- At which grade level(s) do you regularly teach redox reactions?
- (3)
- Can you describe for me how you start teaching redox reactions? Perhaps providing some examples for clarification.
- (4)
- What is the most important thing that you want to teach about redox reactions?
- (a)
- Why do you think it is important?
- (b)
- What content do you think students need before they learn redox reactions?
- (c)
- How does redox reactions connect to other content?
- (5)
- What do you consider when you plan a lesson about redox reactions?
- (a)
- Are there things related to redox reactions that you purposefully leave out?
- (i)
- What are they and why?
- (6)
- What are some difficulties with teaching this topic?
- (a)
- Are there other factors that influence how you teach this topic?
- (7)
- What materials do you use to teach the content of redox reactions?
- (a)
- You use (an animation, picture, analogy, etc.) to help students learn redox reactions. Why? Are there any particular reasons for the use of this (strategy) for teaching?
- (b)
- In what way is this strategy particularly useful in helping students to learn the redox reaction concept(s) you want them to understand?
- (8)
- How do you know that students understand the ideas or concepts about redox reactions that you teach?
- (a)
- What strategies do you use to understand students’ understanding of redox reactions?
- (9)
- If you were to teach content again, would there be changes?
- (a)
- Which?
- (b)
- Why?
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Career Level | N (%) | Years of Teaching Experience | N (%) | Experience in Teaching Redox Reactions | N (%) |
---|---|---|---|---|---|
Bachelor’s | 14 (22%) | no experience | 8 (57%) | Yes | 3 (21%) |
less than a year | 6 (43%) | No | 11 (79%) | ||
Master’s | 11 (18%) | no experience | 2 (18%) | Yes | 3 (27%) |
less than a year | 9 (82%) | No | 8 (73%) | ||
Trainee | 13 (21%) | less than a year | 8 (62%) | Yes | 9 (64%) |
1–5 years | 5 (38%) | No | 4 (29%) | ||
In service | 24 (39%) | 1–5 years | 10 (42%) | Yes | 23 (96%) |
6–10 years | 2 (8%) | ||||
11–20 years | 5 (21%) | No | 1 (4%) | ||
more than 20 years | 7 (29%) |
What Do You Most Intend Students to Learn about Redox Reactions? | Bachelor’s (N = 14) | Master’s (N = 11) | Trainee (N = 13) | In-Service (N = 24) |
---|---|---|---|---|
The process of electron transfer | 4.3 | 4.6 | 4.4 | 4.4 |
The calculation of the oxidation number (Nox) | 4.3 | 4.4 | 3.6 | 3.3 |
The representation of half-reactions | 4.1 | 4.6 | 4.0 | 3.5 |
The concept of oxidation potential/reduction potential | 4.3 | 3.8 | 3.6 | 3.6 |
The identification of redox reactions | 4.1 | 4.4 | 4.4 | 3.8 |
The corrosion process | 3.4 | 3.7 | 3.9 | 4.0 |
The identification of the applications linked to the redox reaction content | 3.4 | 4.1 | 3.9 | 4.2 |
The functioning of a battery | 3.4 | 4.0 | 4.2 | 4.3 |
I Am Aware of the Students’ Alternative Conceptions and Misunderstandings about Redox Reactions | ||||
---|---|---|---|---|
Bachelor’s (N = 14) | Master’s (N = 11) | Trainee (N = 13) | In Service (N = 24) | |
Strongly Disagree | 0 | 0 | 0 | 0 |
Disagree | 0 | 0 | 0 | 2 |
Undecided | 6 | 4 | 8 | 5 |
Agree | 7 | 6 | 4 | 11 |
Strongly Agree | 1 | 1 | 1 | 6 |
I Select Certain Teaching Strategies That Aim to Facilitate Student Learning about Redox Reactions | I Use Different Strategies to Teach Redox Reactions | I Try to Use Different Strategies Each Time I Teach the Topic of Redox Reaction | ||
---|---|---|---|---|
Bachelor’s (N = 14) | Strongly Disagree | 0 | 0 | 0 |
Disagree | 0 | 0 | 6 | |
Undecided | 4 | 6 | 7 | |
Agree | 9 | 7 | 1 | |
Strongly Agree | 1 | 1 | 0 | |
Master’s (N = 11) | Strongly Disagree | 0 | 0 | 0 |
Disagree | 0 | 0 | 2 | |
Undecided | 7 | 6 | 7 | |
Agree | 3 | 4 | 1 | |
Strongly Agree | 1 | 1 | 1 | |
Trainee (N = 13) | Strongly Disagree | 0 | 0 | 1 |
Disagree | 0 | 0 | 6 | |
Undecided | 5 | 8 | 5 | |
Agree | 7 | 5 | 1 | |
Strongly Agree | 1 | 0 | 0 | |
In service (N = 24) | Strongly Disagree | 0 | 0 | 2 |
Disagree | 0 | 4 | 11 | |
Undecided | 4 | 2 | 7 | |
Agree | 14 | 14 | 3 | |
Strongly Agree | 6 | 4 | 1 |
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Goes, L.F.; Fernandez, C.; Eilks, I. The Development of Pedagogical Content Knowledge about Teaching Redox Reactions in German Chemistry Teacher Education. Educ. Sci. 2020, 10, 170. https://doi.org/10.3390/educsci10070170
Goes LF, Fernandez C, Eilks I. The Development of Pedagogical Content Knowledge about Teaching Redox Reactions in German Chemistry Teacher Education. Education Sciences. 2020; 10(7):170. https://doi.org/10.3390/educsci10070170
Chicago/Turabian StyleGoes, Luciane F., Carmen Fernandez, and Ingo Eilks. 2020. "The Development of Pedagogical Content Knowledge about Teaching Redox Reactions in German Chemistry Teacher Education" Education Sciences 10, no. 7: 170. https://doi.org/10.3390/educsci10070170
APA StyleGoes, L. F., Fernandez, C., & Eilks, I. (2020). The Development of Pedagogical Content Knowledge about Teaching Redox Reactions in German Chemistry Teacher Education. Education Sciences, 10(7), 170. https://doi.org/10.3390/educsci10070170