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All Journal Ethnomathematics Journal Indonesian Journal of Teaching in Science
Wahyuni Eka Maryati
Universitas Negeri Yogyakarta
Arts Education Environmental Science Mathematics Social Sciences Other

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Learning Mathematics Formulas by Listening and Reading Worked Examples Wahyuni Eka Maryati; Endah Retnowati; Ng Khar Thoe
Indonesian Journal of Teaching in Science Vol 2, No 1 (2022): IJOTIS: March 2022
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (979.86 KB) | DOI: 10.17509/ijotis.v2i1.45801

Abstract

This study aims to examine whether there is a significant difference between the effectiveness of worked examples with voice notes and worked examples without voice notes and their relations with computational thinking skills. Both learning strategies were implemented in the derivative of polynomial algebraic function learning. This quasi-experimental study involved 62 students and employed a pre-test and post-test non-equivalent control group design via WhatsApp group. Data were analyzed using ANCOVA with student initial ability measured during the pretest as the covariate. The study empirically proved that there is a significant difference in terms of the effectiveness of both learning strategies viewed from student cognitive load. Worked example without voice notes was more effective and makes students have less cognitive load during learning. In addition, there was no significant difference in the effectiveness of learning strategies in terms of computational thinking skills. This study showed that adding voice notes may lead to redundancy effects, hence the use voice notes with worked examples should be thoroughly considerated.
The Position of Points, Lines and Planes in a Mosque Construction for Geometrical Visualisation Riza Isna Khoirun Nisa; Rania Nova Dechandra; Wahyuni Eka Maryati; Sri Prihatin Hartati
Ethnomathematics Journal Vol 4, No 1 (2023): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v4i1.59929

Abstract

The purpose of this qualitative descriptive study was to identify the concepts of the positions of points, lines, and planes in the building elements of the Kauman Gedhe Mosque foyers such as pillars, ceilings, crossbars and the roof of the building. The research data was obtained from direct observation which was documented using a cellphone camera and visualized with the help of GeoGebra. The results of the study show that there are on the building elements of the Mosque concepts of the position of a point to a line (a point is inside the line and a point is not on the line), a point to a plane (a point is in the plane and a point is outside the plane), a line to a line (two parallel lines, two perpendicular intersecting lines, two non-perpendicular intersecting lines, two coincident lines, and two intersecting lines), a line to a plane (parallel lines, a plane perpendicular, and a plane coincident with a plane), and a plane to a plane (two parallel planes, two non-perpendicular intersecting planes, two perpendicularly intersecting planes, and two coincident planes). Based on the results of this study, it is concluded that there are 16 mathematical concepts found in the Gedhe Kauman Mosque. Visualization of abstract mathematical objects can easily be imagined through cultural sites. This is able to lighten cognitive loads so that it is easy to understand and students are encouraged to construct their own understanding based on the experience they have gained. 
Co-Authors Endah Retnowati Ng Khar Thoe Rania Nova Dechandra Riza Isna Khoirun Nisa Sri Prihatin Hartati