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All Journal Al-Jabar : Jurnal Pendidikan Matematika Amar: Jurnal Ilmiah Hukum
Zulkarnaen, Muhammad Iskandar
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Education Law, Crime, Criminology & Criminal Justice Mathematics

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Implementation of geogebra-assisted creative problem-solving model to improve problem solving ability and learning interest students Handayani, Evie Dwi; Kusnawati, Emah; Sari, Nenden Mutiara; Yaniawati, Poppy; Zulkarnaen, Muhammad Iskandar
Al-Jabar: Jurnal Pendidikan Matematika Vol 13 No 1 (2022): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v13i1.11341

Abstract

Mathematics aims to make students have good problem-solving skills based on the junior high school curriculum. However, the reality in the field is that more than 50% of students cannot solve problem-solving problems. This study aims to (1) Analyze the differences in the improvement of the problem-solving abilities of students who received learning with the GeoGebra-assisted CPS model and the problem-solving skills of students who received conventional learning in terms of overall and early mathematics ability (superior and low); (2) Analyzing the differences in learning interest of students who received GeoGebra-assisted CPS learning and students who received conventional understanding; (3) Analyzing the correlation between problem-solving abilities and students' interest in education. The research design employed was sequential explanatory with a quasi-experimental method. The Instruments were written tests, questionnaires, observation sheets, and interview guidelines. The data obtained were analyzed using the Mann-Whitney U test, t-test, and correlation test. The results showed that: (1) The improvement of the problem-solving abilities of students who received GeoGebra-assisted CPS learning was better than students who received conventional learning, and there was no difference in the problem-solving abilities of the superior early mathematical ability and low early mathematical ability groups; (2) The learning interest of students who receive GeoGebra-assisted CPS learning is better than students who receive conventional learning; (3) There is no correlation between problem-solving ability and student interest in learning. Creative problem-solving learning models assisted by GeoGebra applications can improve students' mathematical problem-solving skills and interest in learning.
Analisis Yuridis Terhadap Hukuman Seumur Hidup Terpidana Ferdy Sambo Dalam Tindak Kejahatan Pembunuhan Berencana Zulkarnaen, Muhammad Iskandar; Ikhsan, Wahyudi; Mulyanto, Rudi
JURNAL AMAR Vol 2 No 1 (2024): Amar : Jurnal Ilmiah Hukum (Juli 2024)
Publisher : Fakultas Hukum Universitas 17 Agustus 1945 Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62734/amar.v2i1.669

Abstract

Kasus Ferdy Sambo merupakan salah satu kasus yang terkait dengan hukuman pidana karena tindak pidana yang dilakukan oleh Ferdy Sambo berupa pembunuhan terhadap Josua Hutabarat yang merupakan bawahannya di kepolisian. Pengadilan menjatuhkan hukuman mati atas tindak pidana pembunuhan berencana yang dilakukan oleh Ferdy Sambo, meskipun hukuman mati tersebut berubah menjadi seumur hidup pasca Ferdy Sambo mengajukan kasasi. Berdasarkan permasalahan tersebut, Penulis merumuskan permasalahan terkait bentuk pertanggungjawaban pidana dengan menggunakan metode penelitian yuridis-normatif. Hasil penelitian menyimpulkan bahwa tindak pidana pembunuhan yang dilakukan Ferdy Sambo merupakan tindak pidana pembunuhan berencana yang dilakukan dengan memerintah bawahannya. Adapun bentuk pertanggungjawaban pidana Ferdy Sambo yakni menjalani pidana penjara seumur hidup.
Co-Authors Handayani, Evie Dwi Kusnawati, Emah Mulyanto, Rudi Nenden Mutiara Sari Wahyudi Ikhsan Yaniawati, Poppy