Effectiveness of the Blended Learning Model to Improve Students’ Achievement of Mathematical Concepts

Dewi Indrapangastuti

Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Indonesia

Herman Dwi Surjono

Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Indonesia

https://orcid.org/0000-0002-2720-2206

Sugiman .

Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Indonesia.

https://orcid.org/0000-0003-1931-7537

Bagus Endri Yanto

Faculty of Tarbiyah and Tadris, State Islamic Institute of Bengkulu, Indonesia.

https://orcid.org/0000-0003-4009-9482

DOI: https://doi.org/10.20448/journal.509.2021.84.423.430

Keywords: Blended learning, Mathematics learning, Mathematical concepts achievement, Trigonometry, Contextual learning, Senior high school.


Abstract

This study aims to discover the effectiveness of the blended learning model in mathematics learning to improve the achievement of mathematical concepts. This study employed a quasi-experimental design with a non-equivalent control group. The experimental class was taught through blended learning, while the control class was taught through the conventional learning model. The population of this study was the students at State Senior High School 1 Sewon Yogyakarta, Indonesia. The research sample involved 60 tenth-grade students in the 2019/2020 academic year, 30 students in each of the experimental and control groups. The sampling technique used cluster sampling and the data were collected using a test instrument. The validity of the test was measured using the obtained Aiken index (0.80), and the reliability was based on the Cronbach's alpha coefficient (0.86). The data were analyzed using t-tests and descriptive statistics. The results of this study showed that the blended learning model is significantly more effective than the conventional learning model in enhancing students’ achievement of mathematical concepts. This means that the application of blended learning in mathematics learning can significantly improve students' achievement of mathematical concepts.

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