The Voice of Mathematics Teacher Guides from Their Use of Pronouns, Modality, and Imperatives

( Heejoo Suh ) 한국수학교육학회 2019 수학교육연구 Vol.22 No.3

Researchers have been attending to the potential of curriculum materials as resources for professional development. In order for a curriculum material to fulfil such purpose, curriculum authors should intentionally attend to educativeness of the material. A feature of educative material is that its voice speaks to teachers. In this study, I explore educativeness of Algebra teacher guides by attending to their voice. In particular, I focused on the use of pronouns, modality, and imperatives. Findings indicate that some teacher guides have more educative voice than the others and that the amount each guide talk to teachers were less than sufficient. Implications for future research and practice are discussed.

The impacts of teacher education on students’ academic achievement and satisfaction in mathematics lessons

( Suh Heejoo ),( Bae Yunhee ),( Lee Ji Su ),( Han Sunyoung ) 한국수학교육학회 2018 수학교육 Vol.57 No.4

Teacher quality is a key factor that determines quality of education. Being aware of this, the Korean government and teachers have been striving to improve teachers’ professionalism. Research about the impacts of efforts to enhance teacher professionalism on students’ academic achievement and course satisfaction, however, is extremely limited. This study sought to advance our understanding of the relationship between these factors by analyzing what teacher characteristics impact students’ achievement and satisfaction. To this end, the study drew on the middle and high school data from 3rd to 6th year survey of the Seoul Educational Longitudinal Study. Structural equational modeling were used as the main approach. Latent profile analysis, a kind of mixture modeling analysis, were used as needed. This study found that teachers’ participation in instruction enhancement activity and professional development impact students’ attitude toward mathematics lessons and their perception on class atmosphere, and ultimately impact their academic achievement as well as their overall satisfaction in the course. In addition, teachers’ use of EBS textbooks and videos impact 3rd grade high schoolers’ academic achievement. These findings suggest that effort to improve teacher professionalism positively impact students’ academic achievement and course satisfaction, although there is a difference according to the year grade. This study provides implications for education policy makers and teacher educators.

수업 관찰 도구 활용 국내 실태에 관한 문헌 분석

서희주(Suh, Heejoo),김지현(Kim, Jihyun) 한국교육학회 2022 敎育學硏究 Vol.60 No.1

학교는 학생들에게 좋은 수업을 제공할 의무가 있다. 어떤 수업이 좋은 수업인지 정의하고 이에 따라 수업을 분석하기 위해 많은 연구자들이 다양한 수업 관찰 도구를 활용해왔다. 그러나 어떠한 수업 관찰 도구가 빈번하게 쓰였고 이러한 도구들은 어떠한 특징을 가지고 있는지, 또 이러한 도구들이 어떠한 맥락에서 어떠한 목적으로 사용되었는지를 종합적으로 검토한 연구는 부족한 실정이다. 이는 수업 관찰 도구가 가진 중요성과 유용함에 비추어 보았을 때 우려되는 점이다. 따라서 본 연구는 국내 수업 관찰 도구에 관한 문헌을 수집하여 분석하였다. 먼저, 수업 관찰 도구를 어떤 상황에서 어떤 목적으로 사용했는지 살펴본 다음, 다수의 연구에서 쓰인 관찰 도구가 갖는 특성을 분석하였다. 그 결과, 수업 관찰 도구를 사용하는 상황과 목적은 다양하게 나타났으며 여러 연구에서 활용한 관찰 도구는 대부분 해외에서 개발한 것이었다. 이러한 결과는 앞으로 수업 관찰 도구에 대한 연구가 다각적으로 활발하게 일어나야 함을 시사한다. Schools are responsible for providing quality education to all students. Researchers have developed and applied various classroom observation tools to define the characteristics of “quality teaching” and to analyze instructional practices based on such frameworks. However, there have been few studies that synthesize different aspects of the use of classroom observation tools, such as how the tools were used for which purposes and the dimensions of the instructional practices that these tools looked at. Given the significance of classroom observation tools for research and practice, such gaps in the literature needed to be addressed. In this study, we analyzed how previous studies used classroom observation tools and the nature of the tools used in multiple studies. We summarized how those observation tools were used, for which purposes they were used, and the characteristics of these tools. We concluded by offering implications for future research on classroom observation.

데이터 분석 프로젝트 참여한 예비 교사의 통계적 지식에 대한 변화와 데이터 기반 의사 결정의 경험

서희주 ( Suh Heejoo ),한선영 ( Han Sunyoung ) 한국수학교육학회 2021 수학교육논문집 Vol.35 No.2

미래 사회는 데이터를 다룰 수 있는 역량이 특히 중요해질 것이라 예측되며, 따라서 통계적 지식과 더불어 통계적 사고력을 갖춘 교사 교육이 필요한 시대가 되었다. 이에 따라 본 연구는 연구자들이 개발한 데이터 분석 프로젝트를 예비 교사들에게 적용해본 뒤 이들의 통계적 지식의 변화를 살펴보고 통계적 사고력을 활용한 데이터 기반 의사 결정 경험의 내용을 살펴보았다. 해당 프로젝트를 통해 예비 교사들은 실제 데이터를 공학적 도구를 통해 분석하는 기회를 가질 수 있었다. 연구를 위해 혼합연구 모형을 적용하여 예비 교사들의 통계적 지식의 변화를 양적으로 분석하였고 데이터 기반 의사 결정의 경험을 질적으로 살펴보았다. 그 결과 예비 교사들은 모평균과 표본평균의 관계, 그리고 모평균 추정 및 해석에 관한 통계적 지식이 부족한 것으로 드러났다. 데이터 기반 의사 결정에 관해서는 데이터와 분석 방법 및 분석 결과에 대한 이해의 깊이에 차이를 보였으며 이러한 차이는 예비 교사들이 한 모둠에서 같이 활동한 경우에도 발생하였다. 이와 같은 결과를 바탕으로 통계 교육의 질 제고를 위한 제안점을 논하였다. Various competencies such as critical thinking, systems thinking, problem solving competence, communication skill, and data literacy are likely to be required in the 4th industrial revolution. The competency regarding data literacy is one of those competencies. To nurture citizens who will live in the future, it is timely to consider research on teacher education for supporting teachers’ development of statistical thinking as well as statistical knowledge. Therefore, in this study we developed and implemented a data analysis project for pre-service teachers to understand their changes in statistical knowledge in addition to their experiences of data-driven decision making process that required them utilizing their statistical thinking. We used a mixed method (i.e., sequential explanatory design) research to analyze the quantitative and qualitative data collected. The findings indicated that pre-service teachers have low knowledge level of their understanding on the relationship between population means and sample means, and estimation of the population mean and its interpretation. When it comes to the data-driven decision making process, we found that the pre-service teachers’ experiences varied even when they worked as a small group for the project. We end this paper by presenting implications of the study for the fields of teacher education and statistics education.

교육적 지도서 개발 사례에 적용한 소설적 글쓰기 기법으로 살펴 본 예술기반 연구의 수학교육연구 활용 가능성 논의

서희주 ( Suh Heejoo ) 한국수학교육학회 2022 수학교육 Vol.61 No.4

A research field develops by experiencing several turns of paradigms. Mathematics education research have experienced those turns as well. Still, the dominant perspective is that mathematics education research should be scientific and objective. In this article, I suggest that this need not to be the prime rule to follow and that the mathematics education field will fertile by discussing extraordinary cases which may seem controversal to be recognized as valid research work. To this end, I first briefly describe the necessity of open discussions among researchers for a field to develop. Then, I introduce fiction writing, a resesarch method derived from arts-based research, as an extraordinary case for open discussions. The benefit of Arts-based research is on that it takes an holistic approach to how we know by embracing emotion and emphathy as means for knowing. Because of this trait, arts-based research holds a powerful potential for influencing a wide range of people, both inside and outside of the resesarch field. Following this, I present a fiction about a prospective teacher who participated in an activity for designing educative curriculum materials. By doing so, I sought to provoke discussions among mathematics education researchers about what to include as a valid research work, possible standards for reviewing arts-based resesarch.

초등 수학교과서의 문제해결 역량 및 과제 유형 분석: 수와 연산 영역의 도전/생각 수학과 탐구 수학을 중심으로

여승현 ( Yeo¸ Sheunghyun ),서희주 ( Suh¸ Heejoo ),한선영 ( Han¸ Sunyoung ),김진호 ( Kim¸ Jinho ) 한국수학교육학회 2021 수학교육 Vol.60 No.4

본 연구는 초등학교 교과서가 반영하고 있는 문제해결 양상을 수와 연산 단원들을 중심으로 살펴보았다. 문제해결의 하위요소를 중심으로 수학적 활동에 대해 코딩을 실시한 결과 실행이 강조되는 가운데 학년별로 강조되는 하위 요소들이 다르게 나타났고, 잠재집단분석을 통해서 과제의 유형을 분류해 보았다. 향후 교과서 개발과 교사지원에 대한 시사점을 제공하고자 한다. Elementary mathematics textbooks present contents for enhancing problem solving competency. Still, teachers find teaching problem solving to be challenging. To understand the supports textbooks are suggesting, this study examined tasks from the challenging/thinking and inquiry mathematics. We analyzed 288 mathematical activities based on an analytic framework from the 2015 revised mathematics curriculum. Then, we employed latent class analysis to classify 83 mathematical tasks as a new approach to categorize tasks. As a result, execution of the problem solving process was emphasized across grade levels but understanding of problems was varied by grade levels. In addition, higher grade levels had more opportunities to be engaged in collaborative problem solving and problem posing. We identified three task profiles: ‘execution focus’, ‘collaborative-solution focus’, ‘multifaceted-solution focus’. In Grade 3, about 80% of tasks were categorized as the execution profile. The multifaceted-solution was about 40% in the thinking/challenging mathematics and the execution profile was about 70% in Inquiry mathematics. The implications for developing mathematics textbooks and designing mathematical tasks are discussed.

Sensitive double antibody sandwich ELISA for the quantification of phosvitin

Gujral, Naiyana,Yoo, Heejoo,Bamdad, Fatemeh,Suh, Joo-Won,Sunwoo, Hoon CARFAX PUBLISHING CO 2017 FOOD AND AGRICULTURAL IMMUNOLOGY Vol.28 No.5