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All Journal JURNAL MathEdu (Mathematic Education Journal) JIEP: Jurnal Ilmu Ekonomi dan Pembangunan
yulia pratiwi siregar
Universitas Aufa Royhan
Economics, Econometrics & Finance Education Mathematics

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EFEKTIVITAS PENGGUNAAN MODEL PEMBELAJARAN AUDITORY, INTELLECTUALLY, REPETITION (AIR) TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA Hotmaida Lestari Siregar; Yulia Pratiwi Siregar; Lukman Hakim Siregar
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 3 (2020): JURNAL MathEdu (Mathematic Education Journal) Vol. 3 No. 3 November 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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Abstract

The aim of this study is to describe the effectiveness of using flipped classroom learning model on the ability to understand students' mathematical concepts on the topic Phytagoras theorem at the eighth grade students of SMP Negeri 8 Padangsidimpuan. The research was conducted by applying experimental method (one group pretest post test design) with 25 students as the sample and they were taken by using cluster sampling technique from 226 students. Observation and test were used in collecting the data. Based on descriptive analysis, it was found: (a) the average of using flipped classroom was 3.80 (good category) and (b) the average of the ability to understand students' mathematical concepts on the topic Phytagoras theorem before using AIR learning model was 68.00 (enough category) and after using AIR learning model was 87.00 (very good category). Furthermore, based on inferential statistic by using pair sample ttest, (SPSS version 22), the result showed the significant value was less than 0.05 (0.000<0.05). It means, using AIR was effective used on the ability to understand students' mathematical concepts on the topic Phytagoras theorem at the eighth grade students of SMP Negeri 8 Padangsidimpuan.
Determinan Multidimensi Pembangunan Ekonomi: Analisis Simultan Modal Manusia, Sumber Daya Alam, dan Kelembagaan Enni Sari Siregar; Yulia Pratiwi Siregar; Nurintan Siregar
JIEP: Jurnal Ilmu Ekonomi dan Pembangunan Vol. 9 No. 1 (2026)
Publisher : PPJP ULM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jiep.v9i1.2966

Abstract

This study aims to analyze the influence of education, health, mineral resources, forest resources, and institutional quality on economic development in North Sumatra. The data were analyzed using multiple linear regression to determine the impact of each independent variable on the dependent variable. The findings reveal that education, health, mineral resources, and institutional quality have a significant impact on economic development. In contrast, forest resources do not have a significant influence. This suggests that economic development is more heavily driven by human capital quality and institutional frameworks rather than a reliance on forest resources. Consequently, enhancing the quality of education and health, optimizing mineral resource management, and strengthening institutions are critical factors in accelerating regional economic development.
Co-Authors Enni Sari Siregar Hotmaida Lestari Siregar Lukman Hakim Siregar Nurintan Siregar