TY - JOUR T1 - The Effects of GeoGebra-Assisted Transformation Geometry Instruction on Student Achievement, Attitudes, and Beliefs TT - The Effects of GeoGebra-Assisted Transformation Geometry Instruction on Student Achievement, Attitudes, and Beliefs AU - Gün, Özge AU - Küçük, Kazim PY - 2023 DA - October Y2 - 2023 DO - 10.18009/jcer.1324668 JF - Journal of Computer and Education Research JO - JCER PB - Tamer KUTLUCA WT - DergiPark SN - 2148-2896 SP - 671 EP - 690 VL - 11 IS - 22 LA - en AB - This study aims to investigate the effects of using GeoGebra, a popular dynamic geometry software, on students’ mathematics achievement, attitudes toward geometry, and beliefs about mathematics and its teaching in transformation geometry teaching. The study was a quasi-experimental design including experimental and control groups. The sample of the study was 34 7th-grade students from a public middle school in a city in Turkey. The study was conducted in the 2015-2016 academic year, lasting ten lesson hours (three weeks). The data were collected through achievement test and surveys regarding attitudes toward geometry, beliefs about the nature of mathematics, and beliefs about the teaching of mathematics. The quantitative data analyses were carried out by using the Mann-Whitney U test. Results revealed that, although the use of GeoGebra in teaching transformation geometry demonstrated student improvement in achievement, attitudes toward geometry, and beliefs about KW - Transformation geometry KW - GeoGebra KW - belief KW - achievement KW - attitude N2 - This study aims to investigate the effects of using GeoGebra, a popular dynamic geometry software, on students’ mathematics achievement, attitudes toward geometry, and beliefs about mathematics and its teaching in transformation geometry teaching. The study was a quasi-experimental design including experimental and control groups. The sample of the study was 34 7th-grade students from a public middle school in a city in Turkey. The study was conducted in the 2015-2016 academic year, lasting ten lesson hours (three weeks). The data were collected through achievement test and surveys regarding attitudes toward geometry, beliefs about the nature of mathematics, and beliefs about the teaching of mathematics. The quantitative data analyses were carried out by using the Mann-Whitney U test. Results revealed that, although the use of GeoGebra in teaching transformation geometry demonstrated student improvement in achievement, attitudes toward geometry, and beliefs about CR - Aiken, L. R. (1972). Research on attitudes toward mathematics. Arithmetic Teacher 19(3), 229–234. https://doi.org/10.5951/AT.19.3.0229 CR - Akgül, M. B. (2014). 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