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Yenni Khairani Lubis
Universitas Islam Negeri Syekh Ali Hasan Ahmad Addary Padangsidimpuan

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Physical Environment And Sustainable Development Aminah Harahap; Yenni Khairani Lubis
Gravity Journal Vol 4, No 2 (2025)
Publisher : Institut Agama Islam Negeri Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/gravity.v4i2.19210

Abstract

Physical environment plays a strategic role in supporting sustainable development. Increasingenvironmental damage, such as climate change, pollution, and exploitation of natural resources, shows that development that does not consider environmental aspects will have a serious impact on human life. Therefore, Physical environment is an important instrument for shaping public awareness, knowledge, attitudes, and behavior to be more responsible towards the environment. This study aims to examine the concept of Physical environment and its relationship with sustainable development through a literature review approach. Data were obtained from various sources, including books, national and international scientific journals, and official documents from relevant institutions. The results of the study show that Physical environment plays a role in instilling values of sustainability, increasing environmental literacy, and encouraging community participation in maintaining a balance between social, economic, and environmental factors. Therefore, a key step towards achieving sustainable development is to integrate Physical environmentinto formal and informal physics institutions.
Peningkatkan Pemahaman Konsep Fisika Melalui Penerapan Model Problem Based Learning Berbantu LKPD Muhammad Taufik Sibagariang; Almira Amir; Yenni Khairani Lubis
Gravity Journal Vol 4, No 2 (2025)
Publisher : Institut Agama Islam Negeri Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/gravity.v4i2.19435

Abstract

This study was conducted to improve the understanding of physics concepts of grade XI-7 students of SMA Negeri 2 Sibolga through the application of the problem based learning (PBL) learning model supported by the use of student waorksheets (LKPD) on static flui material. This study applied th classroom action research (CAR) method which was carried out in two cycles. Each cycle consisted of the stage of planning, action implementation, observation sheets and test to measure conceptual understanding. The results of the study showed a gradual increase in the level of learning completion, namely from 13% in the pre-cycle I, 61.29% in the first meeting of cycle II, and reaching 82% in the second meeting of cycle II with an average value above 75. This finding proves that the use of the PBL model assisted by LKPD is able to significantly increase student’s activeness, involvement, and understanding of physics concepts when compared to conventional learning