커버이미지 없음
KCI등재
학술저널
Qualitative Approach to Graphs of Functions in a Microworld
- 서울대학교 교육종합연구원
- The SNU Journal of Education Research
- Vol.15
- : KCI등재
- 2006.12
- 129 - 140 (12 pages)
This paper deals with a teaching experiment of how 6th grade students understand the rate of change with covariational reasoning in a LOGO-based microworld JavaMAL. We introduce the function graphs using the traces of a turtle swimming in the JavaMAL microworld in which textual commands are used not only for controlling the turtle`s motion but also for modifications and reflections on students` thinking. We found that visual and symbolic representations for the rate of change can work together for a meaningful qualitative approach to the graphs of functions.
1. Introduction
2. Representations and JavaMAL microworld.
3. Episodes
4. Implications