Aceng Saripudin, - and Sri Haryani, MIPA Pendidikan Kimia and Sri Wardani, - (2015) Characterized Project Based Learning To Improve Critical Thinking Skill. In: International Conference on Mathematics, Science, and Education 2015 (ICMSE 2015), SEMARANG.

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Abstract

Project-based learning (PjBL) has been support to be effective to increase student’s critical thinking skill. This study aims to improve the students critical thinking skills through the development of characterized project-based learning that are valid, project based which are effective. This is a research and development type of study that consist of define, design and develop steps. One group pretest-posttest design applied to know the effectiveness of characterized project-based learning model. The subjects of this research were the student in 7th grade SMP Negeri 14 Tasikmalaya. Hence, the data was processed descriptively and statistically. Critical thinking skills improvement was calculated with N-Gain. The results showed that (1) the learning instrument is valid with validity score 3.7, categorized as exellent. The maximum score for this validity is 4. (2) The package can be considered as an effective as a learning device as it helps more than 25 students (predetermined criteria). 30 students have totally mastered the test of critical thinking skills. The N-Gain of 0.2 which indicaties middle improvement. The highest N-Gain performance for critical thinking skills component is 0.038 (low) for strategies and 0.008 (low) for judgement (3) the score for characters were 87.9% ‘Good’.

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