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PENERAPAN MODEL PEMBELAJARAN KOOPERATIF GROUP INVESTIGASI UNTUK MENINGKATKAN HASIL BELAJAR DAN KEMAMPUAN BERPIKIR KRITIS Pahrurrozi, Pahrurrozi
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol 2, No 2: June 2019
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.486 KB) | DOI: 10.36312/e-saintika.v2i2.115

Abstract

[Title: The Implementation of the Cooperative Group Investigative Learning Model to Improve Learning Outcomes and Critical Thinking Ability]. The critical thinking ability is one of the abilities students must-have in the 21st century that is oriented to the processing of information based on the results of the reflective analysis to determine what to believe and to do. The results of a series of observations and case studies note that the critical thinking ability of class X3 students of SMA Negeri 5 Malang is still low. This study aims to improve student learning outcomes and critical thinking skills through the application of an investigative cooperative group learning model. This research is a lesson study research with the steps plan, do, see. The subjects of this study were the students of class X3 of SMAN 5 Malang, totalling 36 students with teaching materials about fungi. Test instruments, observation sheets, and student worksheets are used to obtain data on learning outcomes and students' critical thinking ability in this study. The results showed an increase in student learning outcomes in cycle 1 amounted to 69.7 and cycle 2 amounted to 76.1. Critical thinking ability of students has increased in cycle 1 by 84.5 and in cycle 2 by 90.5. Based on the results of the study it can be concluded that interactive and collaborative learning activities which in this study use a cooperative group investigation model can improve learning outcomes and critical thinking ability of class X3 students of SMAN 5 Malang.
Penerapan Model Pembelajaran Kooperatif Group Investigasi untuk Meningkatkan Hasil Belajar dan Kemampuan Berpikir Kritis Pahrurrozi, Pahrurrozi
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol. 2 No. 2: June 2019
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/e-saintika.v2i2.115

Abstract

[Title: The Implementation of the Cooperative Group Investigative Learning Model to Improve Learning Outcomes and Critical Thinking Ability]. The critical thinking ability is one of the abilities students must-have in the 21st century that is oriented to the processing of information based on the results of the reflective analysis to determine what to believe and to do. The results of a series of observations and case studies note that the critical thinking ability of class X3 students of SMA Negeri 5 Malang is still low. This study aims to improve student learning outcomes and critical thinking skills through the application of an investigative cooperative group learning model. This research is a lesson study research with the steps plan, do, see. The subjects of this study were the students of class X3 of SMAN 5 Malang, totalling 36 students with teaching materials about fungi. Test instruments, observation sheets, and student worksheets are used to obtain data on learning outcomes and students' critical thinking ability in this study. The results showed an increase in student learning outcomes in cycle 1 amounted to 69.7 and cycle 2 amounted to 76.1. Critical thinking ability of students has increased in cycle 1 by 84.5 and in cycle 2 by 90.5. Based on the results of the study it can be concluded that interactive and collaborative learning activities which in this study use a cooperative group investigation model can improve learning outcomes and critical thinking ability of class X3 students of SMAN 5 Malang.
Estimation of Carbon Stock in Mangrove Seedlings and Sediment in EEA Bagek Kembar, West Lombok Pahrurrozi, Pahrurrozi; Hadiprayitno, Gito; Suyantri, Eni
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9797

Abstract

Mangrove are coastal ecosystems that play a crucial role in maintaining environmental stability, protecting shorelines, and providing essential habitats for diverse species of flora and fauna. Mangrove ecosystems also play a vital role in mitigating climate change by absorbing and storing atmospheric carbon. This study was conducted with the objective of estimate the carbon stock in mangrove seedlings and sediments within the Essential Ecosystem Area (EEA) of Bagek Kembar, Sekotong, West Lombok. Mangrove seedlings sampling was conducted using the destructive (harvesting) method and analyzed in accordance with the Indonesia National Standard (SNI), while mangrove sediments sampling was carried out using a corer and analyzed using the Loss on Ignition (LOI) method. The results showed that natural mangroves had seedlings carbon stock of 3.44 tons C/ha, whereas rehabilitated mangroves had seedlings carbon stock of 2.95 tons C/ha. Carbon stock at sediment in natural mangroves was 591.49 Mg/ha, and for sediments at rehabilitated mangroves was 575.39 Mg/ha. The average seedlings carbon stock in the EEA Bagek Kembar Sekotong West Lombok was 3.19 tons C/ha, while the average sediments carbon stock was 583.41 Mg/ha. These findings highlight the significant carbon storage potential of mangroves ecosystems, particulary in seedlings and sediments. Although mangrove seedling possess relatively small biomass, they make a meaningful contribution to future carbon stock.