Journal of Natural Sciences
Vol 1, No 3 (2020): Journal of Natural Sciences November

PENINGKATAN KEMAMPUAN BERPIKIR KRITIS BIOLOGI SISWA MELALUI MODEL PROBLEM BASED LEARNING (PBL) DI NEGARA 6 SMA PADANGSIDIMPUAN

Hasanah Nasution (Universitas Muhammadiyah Tapanuli Selatan)
Sahlan Tuah (Universitas Muhammadiyah Tapanuli Selatan)
Nurmaini Ginting (Universitas Muhammadiyah Tapanuli Selatan)



Article Info

Publish Date
31 Mar 2021

Abstract

This study aims to improve students' critical thinking skills in the field of biology. The analysis technique in this research is critical thinking skills analysis and observation. This type of research is PTC. The results of the evaluation of students' critical thinking skills with learning disabilities were obtained in the first cycle of 51.51% and in the second cycle 84.85% of the 33 students who passed the critical thinking ability test, and there was an increase in the first cycle to II. is 33.34%. %. The results of student observations also experienced an increase in cycle I of 54.17% and cycle II 89.20% an increase of 35.03%, teacher observations in cycle I 67.19%, cycle II 92.19% an increase of 25%.

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Journal Info

Abbrev

jonas

Publisher

Subject

Agriculture, Biological Sciences & Forestry Environmental Science

Description

The Journal of Natural Sciences is a scientific publication media in the study and development of Science in the fields of science and Education (Biology, Chemistry, and Physics). The Journal of Natural Sciences includes scientific writings in the form of conceptual, research results as well as ...