Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar IJEEM - Indonesian Journal of Environmental Education and Management
Lasmaria Nami Simanungkalit
Unknown Affiliation
Decision Sciences, Operations Research & Management Education Environmental Science Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
The Based Instructional Materials Development Biology Environmental Issues in Improving Students’ Knowledge on The Basic Concepts Of Ecology Lasmaria Nami Simanungkalit
IJEEM - Indonesian Journal of Environmental Education and Management Vol 2 No 2 (2017): IJEEM: Indonesian Journal of Environmental Education and Management, Volume 2 Nom
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (777.573 KB) | DOI: 10.21009/IJEEM.022.02

Abstract

The environmental crisis that occurred in late sourced from the mistakes of human behavior to the views and error nature exploration. The efforts made by some countries to address the environmental issues have been integrated in education. But the school still experiencing problems on the biology subject-based environmental issues. It is therefore necessary materials specifically to increase students' knowledge about the basic concepts of ecology. A Research and Development of teaching materials is based on the Borg and Gall (1983), but refers to the design of Dick and Carey (2009), involving 33 students of class XI IPA SMAN 86 Bintaro, South- Jakarta, as an experimental class and class XI IPA, SMAN 39 Cijantung East-Jakarta, as the control class. There are two biological development of teaching materials developed. There are five t-tests to verify the biological development of teaching materials based on environmental issues. Research results indicated that there is a significant difference between mean of gain score obtained from post-test and pre-test at experiment group compared to control group. Then the development of teaching materials based biology to environmental issues can be disseminated to the students' knowledge of the basic concepts of ecology.
Pengaruh Penggunaan Metode Eksperimen Terhadap Perkembangan Keterampilan Sains Anak Usia 5-6 Tahun Di TK GKPI Tarutung Kota Lestari Sri Wahyuni Panjaitan; Julita Herawati P; Lasmaria Nami Simanungkalit
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 01 (2026): Volume 11 No. 01 Maret 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i01.43547

Abstract

The purpose of this study was to determine the effect of the use of experimental methods on the development of science skills of children aged 5-6 years in GKPI Kindergarten Tarutung City. The research hypothesis is: "There is a significant influence between the use of experimental methods on the development of science skills of children aged 5-6 years in GKPI Kindergarten Tarutung City". The population was all children aged 5-6 years in GKPI Kindergarten Tarutung City totaling 113 students. The research sample was determined using a purposive sampling technique, namely 26 students of class B1 as the experimental class using the experimental method and 25 students of class B3 as the control class using the usual treatment (conventional class). This research method is a quantitative method with the type of Quasi Experimental Design using the Nonequivalent Control Group Design. The instrument used in this study was a questionnaire item of 15 items. The results of the data analysis show that the average N-Gain score in the experimental class is 0.8157, which falls into the high category, while the control class has an average score of 0.2129, which is in the low category. The results of the independent t-test show that tcount = 10.845 is greater than ttable = 2.021 (α = 0.05; df = 37.914). Thus, it can be concluded that the research hypothesis is accepted, namely there is a significant effect of using the experimental method on the development of science skills of children aged 5-6 years at TK GKPI Tarutung City, thus the null hypothesis (H0) which states that there is no significant effect is rejected.
Co-Authors Julita Herawati P Lestari Sri Wahyuni Panjaitan