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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang
Ribka Kariani Sembiring
Pendidikan Matematika, Universitas Katolik Santo Thomas, Medan
Education

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PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING BERBANTUAN QUIZIZZ UNTUK MENINGKATKAN KEMAMPUAN PEMAHAMAN MATEMATIS SISWA KELAS VII SMP SANTO YOSEPH PADA MATERI BANGUN RUANG Emininta Br Ginting; Imelda Sihombing; Ribka Kariani Sembiring; Friska Ledina Situngkir; Sondang Noverica
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 11 No. 03 (2025): Volume 11 No. 03 September 2025 In Build
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i03.7941

Abstract

This study aims to determine whether the application of the discovery learning model assisted by quizizz can improve the mathematical understanding of class VII students of SMP Santo Yoseph and to determine how the application of the discovery learning model assisted by quizizz improves the mathematical understanding of class VII students of SMP Santo Yoseph. This research method uses Classroom Action Research (CAR). The research procedure is in the form of a cycle. Each cycle consists of 4 stages, namely: planning, implementing actions, observing, and reflecting. Data collection techniques through observation and testing. This data collection uses several instruments in the form of teacher activity observation sheets and student activity observation sheets, while tests are used to determine students' mathematical understanding abilities. The results of the study indicate that the use of the discovery learning model assisted by quizizz can improve students' mathematical understanding abilities in mathematics lessons on spatial geometry material. From the average value of initial ability, which is 52.73 (15%), the average value of mathematical understanding ability in cycle I is 63.24 (38%), and the average value of mathematical understanding ability in cycle II is 78.36 (82%), and the average value of teacher and student activity observations in cycle I is 71.5% and 72% and cycle II is 85.5% and 88.5%.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT FACILITATOR AND EXPLANNING (SFE) BERBANTUAN GEOGEBRA TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA KELAS VIII SMP SWASTA SANTO PETRUS MEDAN Sulistika Melani Sibarani; Ribka Kariani Sembiring; Frida Marta Argareta Simorangkir; Sinta Dameria Simanjuntak
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 11 No. 03 (2025): Volume 11 No. 03 September 2025 In Press
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i03.7942

Abstract

The research conducted at the Santo Petrus Medan Private Middle School in class VIII aims to describe the effect of the Student Facilitator and Eplaining (SFE) Cooperative Learning Model assisted by Geogebra on students' mathematical concept understanding ability on the material of straight line equations and line gradients and parallel lines and perpendicular lines. This study uses quantitative research with the experimental method. The population in this study were all students of class VIII of Santo Petrus Medan Private Middle School. The sampling technique was random sampling, selected students of class VIII-3 as the control class and students of class VIII-4 as the experimental class. The results of the pre-test and post-test were analyzed using normality and homogeneity tests. The results showed that the samples were normally distributed and homogeneous. Furthermore, an independent samples test was carried out, a significant value was obtained from the value of students' mathematical concept understanding ability between the control class and the experimental class with the results of the SPSS analysis, p <0.05, which means that there is an influence of the Student Facilitator and Eplaining (SFE) Cooperative Learning Model assisted by Geogebra on students' mathematical concept understanding ability. This can be seen from the test results with an average value of the control class of 25.19 and an average value of the experimental class of 75.58 with a t_count value = 14.81. The t_count value is higher than the t_table value of 1.99. So is rejected and is accepted. So it can be concluded that there is an influence of the Student Facilitator and Eplaining (SFE) Cooperative Learning Model assisted by Geogebra on students' mathematical concept understanding abilities with significant results. Keywords:
Co-Authors Emininta Br Ginting Frida Marta Argareta Simorangkir Friska Ledina Situngkir Imelda Sihombing Sinta Dameria Simanjuntak Sondang Noverica Sulistika Melani Sibarani