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Quizizz Aided Circ Type Cooperative Learning Model To Improve Problem Solving Rahmawati Rahmawati; Parmin Lumban Toruan
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 9, No 1 (2021): March
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v9i1.18931

Abstract

This study aims to see the improvement of students' mathematical problem solving abilities using a learning model using cooperative integrated reading and composition type Circ (cooperative integrated reading and composition) learning assisted by Quizizz to improve problem solving . This model is learning by delivering teaching materials that he guardians by forming groups, provide discourse according to the topic of learning, students work together to read each other and find the main ideas contained in the discourse then provide responses to the discourse written on paper sheetss, Students present / read out the results of group discussions, the teacher provides reinforcement and makes conclusions together. The research subject was the research subject was the student of class X MAN 1 Palembang in the academic year 2020-2021. This method is Quasi-Experimental. There are two types of research data. Quantitative and qualitative data. Data were analyzed using descriptive analysis and obtained calculations. It was found that students who received learning with the Circ type cooperative learning (cooperative integrated reading and composition) assisted by Quizizz showed a post test score that was greater than conventional learning
Kemampuan Variasi Campuran Sekam Padi Pada Batako Terhadap Peredaman Suhu Parmin Lumban Toruan; Heru Prasetio; Rahmawati Rahmawati
Jurnal Deformasi Vol. 7 No. 2 (2022): JURNAL DEFORMASI
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/deformasi.v7i2.9176

Abstract

ABSTRAK Penggunaaan batako sebagai material penyusun bangunan lebih menguntungkan dari pada penggunaan batu bata dikarenakan batako lebih mudah dan cepat dalam pemasangannya. Ketahanan suhu (panas) merupakan salah satu faktor dari kualitas batako. Salah satu cara untuk meningkatkan ketahanan panas (suhu) pada batako adalah dengan menambahkan campuran pembuatannya, salah satunya sekam padi. Sekam padi berpotensi meningkatkan ketahanan panas dikarenakan memiliki kandungan silika. Limbah sekam padi banyak didapatkan dari pertanian di masyarakat, namun pemanfaatan limbah sekam padi pada batako  masih sangat kurang. Penelitian ini bertujuan menganalisis peredaman suhu pada batako dengan campuran sekam padi. Metode yang digunakan yaitu pendekatan eksperimen yang diawali dengan survei lokasi limbah sekam padi dan pengambilan sampel sekam padi di penggilingan padi Pegayut. Tahapan selanjutnya dilakukan penelitian secara eksperimen di laboraturium. Batako yang digunakan dengan variasi campuran sekam padi 0,1 , 0,2  dan 0,3 dari komposisi penggunaan semen.  Telah dilakukan penelitian untuk mengetahui redaman panas pada batako dengan meletakkan alat pemanas pada salah satu sisi batako lalu diukur suhunya dan pada sisi yang lain  setelah memvariasikan waktunya  dari 0 menit sampai 15 menit dengan rentang waktu masing masing 5 menit. Hasil dari penelitian menunjukkan bahwa peredaman suhu terbesar berada pada batako dengan campuran 30% sekam padi diwaktu 5 menit peredamannya sebesar 75,025oC, waktu 10 menit peredam suhu nya 79,282oC dan diwaktu 15 menit peredaman suhunya sebesar 82,275oC. Berdasarkan analisis faktorial bahwa campuran sekam padi 30% adalah batako dengan peredaman suhu yang terbaik                 ABSTRACT The use of bricks as a building material is more profitable than the use of bricks because bricks are easier and faster to install. Temperature resistance (heat) is one that affects the quality of bricks. One way to increase the heat resistance (temperature) of adobe bricks is to add a mixture of its manufacture, one of which is rice husk. Rice husk has the potential to increase heat resistance because it contains silica. Rice husk waste is mostly obtained from agriculture in the community, but the use of rice husk waste in bricks is still very less.. This study aims to analyze the temperature damping on adobe bricks with a mixture of rice husks. The method used is an experimental approach that begins with a survey of rice husk waste locations and sampling of rice husks at the Pegayut rice mill. The next stage was carried out experimentally in the laboratory. The bricks used were mixed with rice husk variations of 0.1, 0.2 and 0.3 of the composition used for cement. Research has been carried out to determine the attenuation of heat in bricks by placing a heating device on one side of the bricks and then measuring the temperature and on the other side after varying the time from 0 minutes to 15 minutes with with a time span of 5 minutes each. The results of the study showed that the greatest temperature attenuation was in bricks with a mixture of 30% rice husk at 5 minutes the damping time was 75.025 oC, 10 minutes at 79.282 oC and 15 minutes at 82.275 oC. Based on the factorial analysis, the 30% rice husk mixture is the brick with the best temperature damping