Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice

Jiseung Yoo; Min Kyeong Kim

doi:10.30935/cedtech/13278

Jiseung Yoo ¹, Min Kyeong Kim ¹ ^*

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CONT ED TECHNOLOGY, Volume 15, Issue 3, Article No: ep438

https://doi.org/10.30935/cedtech/13278

Submitted: 03 March 2023, Published Online: 15 May 2023

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Abstract

This study focuses on how teachers’ pedagogical content knowledge (PCK) of mathematics may differ depending on teacher interactions in an online teacher community of practice (CoP). The study utilizes data from 26,857 posts collected from the South Korean self-generated online teacher CoP, ‘Indischool’. This data was then analyzed using natural language processing techniques; specifically, text classification with word2vec, BERT, and machine learning classifiers was used. The results indicate that the texts of posts can predict the level of teacher interactions in the online CoP. BERT embedding and classifier exhibited the best performance, ultimately achieving an F1 score of .756. Moreover, topic modeling utilizing BERT embedding is used to uncover the specific PCK of teachers through high- and low-interaction posts. The results reveal that high-interaction posts with numerous likes and replies demonstrate more in-depth reflections on teaching mathematics and refined PCK. This study makes two significant contributions. First, it applies a data science framework that allows for the analysis of real data from an actual online teacher community. Secondly, it sheds light on the intricacies of knowledge management in an online teacher CoP, an area that has to this point received limited empirical attention.

Keywords: online community of practice, natural language processing, mathematics pedagogical content knowledge, knowledge management

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Citation

Yoo, J., & Kim, M. K. (2023). Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice. Contemporary Educational Technology, 15(3), ep438. https://doi.org/10.30935/cedtech/13278

Yoo, J., and Kim, M. K. (2023). Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice. Contemporary Educational Technology, 15(3), ep438. https://doi.org/10.30935/cedtech/13278

Yoo J, Kim MK. Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice. CONT ED TECHNOLOGY. 2023;15(3), ep438. https://doi.org/10.30935/cedtech/13278

Yoo, Jiseung, and Min Kyeong Kim. "Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice". Contemporary Educational Technology 2023 15 no. 3 (2023): ep438. https://doi.org/10.30935/cedtech/13278

Yoo, Jiseung et al. "Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice". Contemporary Educational Technology, vol. 15, no. 3, 2023, ep438. https://doi.org/10.30935/cedtech/13278

Yoo J, Kim MK. Using natural language processing to analyze elementary teachers’ mathematical pedagogical content knowledge in online community of practice. CONT ED TECHNOLOGY. 2023;15(3):ep438. https://doi.org/10.30935/cedtech/13278