• 한국수학교육학회지시리즈A:수학교육
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• 제46권4호
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• pp.465-482
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• 2007

The purpose of this study was to explore how pre-service elementary school teachers participate in a course specifically designed to help them learn how to analyze instruction in terms of the levels of cognitive demand of mathematical tasks. This paper describes what prospective teachers learned while reading the cases of "implementing standards-based mathematics instruction", analyzing all tasks of one unit in one elementary mathematics textbook, observing master teachers' mathematics instruction as well as their colleagues during the practicum period, and developing their own cases on the basis of the design and implementation of instruction focused on mathematical tasks. This paper includes various reflections of the prospective teachers.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제22권1호
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• pp.35-46
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• 2019

This study examines how open-ended tasks can be implemented with the support of redefined learning goals and teaching practices from a student-centered perspective. In order to apply open-ended tasks, learning goals should be adopted by individual student's cognitive levels in the classroom context rather than by designated goals from curriculum. Equitable opportunities to share children's mathematical ideas are also attainable through flexible management of lesson-time. Eventually, students can foster their meta-cognition in the process of abstraction of what they've learned through discussions facilitated by teachers. A pedagogical implication for professional development is that teachers need to improve additional teaching practices such as how to tailor tasks relevant to their classroom context and how to set norms for students to appreciate peer's mathematical ideas in the discussions.

• 한국수학교육학회지시리즈A:수학교육
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• 제46권2호
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• pp.207-226
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• 2007

The purpose of this study was to design and develop the processes of tasks and assessment rubrics of open-ended tasks, and those for the 5th graders of elementary school mathematics. 7 tasks were finally developed, and 'problem understanding', 'problem solving process', 'communication' were selected as the criteria for assessment rubrics. The result was that the ability of mathematical power covering problem understanding ability, problem solving ability and mathematical communication ability was low. Specifically, problem understanding ability was the highest, problem solving ability was middle, and mathematical communication ability was the lowest.

• 한국수학교육학회지시리즈A:수학교육
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• 제43권2호
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• pp.163-175
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• 2004

We believe new assessment strategies and practices need to be developed that will enable teachers and others to assess students' performance in a manner that reflect the 7th Korean curriculum reform vision for school mathematics. This research was conducted to develop the assessment tasks based on the current literatures such as National Council of Teachers of Mathematics (1999) and Korea Institute of Curriculum & Evaluation(KICE, 2002, 2003) in quadratic functions of the secondary school and to find the effect of these tasks by classifying students' responses. The research instrument were composed of three criteria, the previous knowledge, the application of quadratic functions, and the general properties in functions. The research data were collected from 32 high school students in a suburb of Seoul and sorted by their similarities and differences in mathematical understanding. Through the research, we could know more than ever before about how the students learned mathematics and about how to improve teachers' mathematical instruction.

• 한국학교수학회논문집
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• 제22권2호
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• pp.95-113
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• 2019

본 연구에서는 2015 개정 수학과 교육과정에 따른 고등학교 1학년 <수학>교과서에 제시된 교과 역량을 함양하기 위한 과제의 인지적 요구 수준을 분석하였다. 9종의 <수학>교과서는 4999개의 수학 과제를 포함하였고 그 중 수학 교과 역량을 함양하기 위한 과제는 703개였다. Stein, Smith, Henningsen, & Silver(2000)의 분석틀을 바탕으로 703개의 교과 역량 함양 과제를 분석한 결과, 학생들의 높은 인지적 수준을 요구하는 과제 비율은 61.5%, 학생들의 낮은 인지적 수준을 요구하는 과제 비율은 38.5%였고 그에 따른 과제유형의 비율은 Low-M 1.0%, Low-P 37.5%, High-P 57.8%, High-D 3.7%로 나타나 수학 교과 역량을 함양하기 위한 과제의 대부분이 절차적 과정을 따라 수학적 개념, 원리, 과정 등을 이해하도록 유도하는 과제임을 알 수 있었다.

• 대한수학교육학회지:학교수학
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• 제15권1호
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• pp.37-59
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• 2013

이 연구의 목적은 학생들의 학습 과정과 관련된 수학 교과서를 분석을 통하여 2007개정 교육과정에 따라 개발된 고등학교 1학년 수학교과서가 학생들의 수학 학습 과정을 지원하는 도구로서 수학과제를 어떻게 제시하고 있는지 살펴보는 것이다. 따라서 이 연구를 위해 선정된 2종의 고등학교 1학년 수학교과서에 포함된 수학과제가 학생들에게 어떠한 인지적 노력수준을 요구하고 있는지 수학과제 분석 결과를 통해 살펴보았다. 수학 교과서가 포함하는 2565개의 수학과제를 분석한 결과 학생들에게 낮은 인지적 노력 수준을 요구하는 과제가 94%의 비율로 나타났고, 높은 인지적 노력수준을 요구하는 과제가 6%의 비율로 나타났다. 이러한 결과는 본 연구에서 살펴본 2종의 수학교과서가 학생들의 학습 과정을 지원하기 위해 주로 절차적 과정에 따라 정확한 답을 찾게 하는 수학과제들을 제시하고 있음을 보여준다.

• 대한수학교육학회지:학교수학
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• 제14권2호
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• pp.213-232
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• 2012

교과서에서 제시된 수학과제, 특히 함수 영역에서의 그것이 학생들이 일상생활에서 일어나는 여러 가지 문제를 수학적으로 관찰, 분석, 조직, 사고하여 해결할 수 있게 하는 기회를 갖도록 하는지 알아보기 위하여 Smith & Stein (1998)이 제안한 수학 과제 분석틀에 따라 중학교 교과서의 함수 단원에 포함된 수학과제를 분석하였다. 분석 결과, 중학교 교과서의 함수 단원에 거의 대부분의 수학과제가 Low Level인 것으로 나타났다. 학년별 구성을 보면 High Level 수학과제의 분포가 학년이 올라갈수록 줄어들고 있음을 알 수 있었다. 교과서에서 포함된 대부분의 수학과제가 알고리즘적이고 간단한 절차만을 이용해서 해결할 수 있는 방법으로 정답을 찾아내도록 유도하는 과제만 제시된 것으로 나타났다. 또한 대부분의 High Level 과제는 교과서 본론에 위치하여 전개상 내용의 주가 되는 것이 아니라 단원을 마무리하는 뒷부분 혹은 중간에 간혹 제시되는 특이사항 부분에 포함되는 것으로 나타났다.

• 대한수학교육학회지:학교수학
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• 제2권1호
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• pp.203-241
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• 2000

This study aims to suggest a model of task development for mathematics performance assessment and to develop performance tasks for the fifth graders in the primary school on the basis of this model. In order to achieve these aims, the following inquiry questions were set up: (1) to develop open-ended tasks and projects for the fifth graders, (2) to develop checklists for measuring the abilities of mathematical reasoning, problem solving, connection, communication of the fifth graders more deeply when performance assessment tasks are implemented and (3) to examine the appropriateness of performance tasks and checklists and to modify them when is needed through applying these tasks to pupils. The consequences of applying some tasks and analysing some work samples of pupils are as follows. Firstly, pupils need more diverse thinking ability. Secondly, pupils want in the ability of analysing the meaning of mathematical concepts in relation to real world. Thirdly, pupils can calculate precisely but they want in the ability of explaining their ideas and strategies. Fourthly, pupils can find patterns in sequences of numbers or figures but they have difficulty in generalizing these patterns, predicting and demonstrating. Fifthly, pupils are familiar with procedural knowledge more than conceptual knowledge. From these analyses, it is concluded that performance tasks and checklists developed in this study are improved assessment tools for measuring mathematical abilities of pupils, and that we should improve mathematics instruction for pupils to understand mathematical concepts deeply, solve problems, reason mathematically, connect mathematics to real world and other disciplines, and communicate about mathematics.

• East Asian mathematical journal
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• 제34권4호
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• pp.429-449
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• 2018

The purpose of this study is to investigate how the mathematical creativity of middle school mathematical gifted students is represented through the process of problem posing activities. For this goal, they were asked to pose real-world problems similar to the tasks which had been solved together in advance. This study demonstrated that just 2 of 15 pupils showed mathematical giftedness as well as mathematical creativity. And selecting mathematically creative and gifted pupils through creative problem-solving test consisting of problem solving tasks should be conducted very carefully to prevent missing excellent candidates. A couple of pupils who have been exerting their efforts in getting private tutoring seemed not overcoming algorithmic fixation and showed negative attitude in finding new problems and divergent approaches or solutions, though they showed excellence in solving typical mathematics problems. Thus, we conclude that it is necessary to incorporate problem posing tasks as well as multiple solution tasks into both screening process of gifted pupils and mathematics gifted classes for effective assessing and fostering mathematical creativity.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제6권1호
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• pp.39-51
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• 2002

This study described an elementary teacher's practical knowledge of selecting and using mathematical tasks for promoting students' understanding and discourse. The informant of this ethnographic inquiry was a third grade teacher and has 10 years of teaching experience. According to the analysis of multiple data sources, this study showed that based on his beliefs about the development of understanding of mathematics and discourse, he continually employed two different types of tasks: open-ended tasks and tasks from students' mistakes and comments during discourse. Teachers' practical knowledge of teaching mathematics and the classroom norms for students' understanding and discourse are suggested to be given attention for further research on this area.