Teachers’ Competencies in Doing Direct Proof in Geometry
- DOI
- 10.2991/assehr.k.220403.034How to use a DOI?
- Keywords
- Proof; Direct proof; Geometry; Valid argument
- Abstract
Mathematical proof is necessary in mathematics education for meaningful learning. It can prevent rote learning. Proof should be seen as an important part of mathematics teaching process. It shouldn’t be seen as only a special topic in the curriculum. Teaching mathematical proof is valuable for teaching process not only for reaching the correct mathematical statement, but also for knowing and doing mathematics correctly, building the basis of mathematical thinking, and understanding, using and improving mathematical knowledge. This descriptive research examined teachers’ proving competency in geometry. The respondents were 123 mathematics teachers consisting of 70 junior high school teachers, 37 senior high school teachers, and 16 vocational school teachers. They were given test consisting problem in geometry that has to be proved. Analysis of the teachers’ answers can be classified into three categories. First category showed that some teachers cannot do the proof. They did not know what have to be done to start. Second category showed that majority of the teachers cannot prove with valid argument. They only perform mechanistic steps. Third category showed that none of the teachers can do the proof with complete steps and valid argument. As the result of this research, mathematics teachers have to improve their skills in mathematical communication to support proving competencies.
- Copyright
- © 2022 The Authors. Published by Atlantis Press SARL.
- Open Access
- This is an open access article distributed under the CC BY-NC 4.0 license.
Cite this article
TY - CONF AU - Wiworo Wiworo PY - 2022 DA - 2022/04/19 TI - Teachers’ Competencies in Doing Direct Proof in Geometry BT - Proceedings of the 2nd National Conference on Mathematics Education 2021 (NaCoME 2021) PB - Atlantis Press SP - 238 EP - 242 SN - 2352-5398 UR - https://doi.org/10.2991/assehr.k.220403.034 DO - 10.2991/assehr.k.220403.034 ID - Wiworo2022 ER -