Jung Colen , Sheunghyun Yeo , Nayoung Kwon , Hoyun Cho , Jinho Kim

DOI: Vol.24(No.4) 279-311, 2021

In this paper, we report the types of teaching moves a mathematics teacher educator attempted in his teaching of third-grade students at an urban elementary school in South Korea over two months. We analyze the lesson videos to find the patterns of teaching moves and speculate the link between the teaching and students’ mathematical proficiencies recommended in the Common Core State Standards for Mathematical Practices. Closely related teaching moves to the students’ development of a certain mathematical proficiency would imply the exemplary practices that teachers―both inservice and preservice teachers―can implement in their classrooms.

SMP, Standard for Mathematical Practices, teaching moves, teaching, practices, mathematical proficiencies, standards-based instruction

Jihyun Hwang

DOI: Vol.24(No.4) 313-335, 2021

The purpose of this research is to identify topics discussed by Korean mathematics education studies and examine research trends for 15 years. I applied latent Dirichlet allocation (LDA) to the original text datasets including English abstracts of 3,157 articles published in eight journals indexed by the Korean Citation Index (KCI) from 1997 to 2019. I identified an LDA model with 60 topics, then research trends in 2,884 articles between 2002 and 2018 were as follows; mathematics educators have paid most attentionto teacher education through 2010 to 2015 and curriculum analysis after 2016. The findings in this research can contribute to understand what have been discussed in Korean mathematics education society as well as what will and need to be emphasized more in the future compared to the global research trends. In addition, LDA has potentials to identify topics and keywords of manuscripts newly written and submitted to any journals in addition to information provided by authors.

text mining, latent Dirichlet allocation, research trend