¹Widia Rahayu Safitri , ²Yuni Ahda

¹Master Degree Program of Biology Education, Faculty of Mathematics and Sciences, Padang State University, Jl. Prof. Dr. West Padang Freshwater Hamka - 25131 Indonesia

²Lecturer of Biology Department, Faculty of Mathematics and Sciences, Padang State University, Jl. Prof. Dr. West Freshwater Hamka Padang–25131, Indonesia

This study aims to design, design and develop a learning intervention.-based Practicum Guide problem-based learning to improve the critical thinking skills of class XI SMA students that are valid, practical, and effective. The instrument used was a validity questionnaire and a practicality questionnaire as well as a matter of effectiveness. The validity and practicality data analysis technique uses a Likert scale scoring and the effectiveness uses a t-test using SPSS 2.2. Based on the development and trial of problem-based learning to improve the thinking skills of students in class XI SMA, it was concluded that the results of the validity and practicality tests met the very valid criteria. The results of the effectiveness test have effective criteria.

problem based learning, practical guide, development, critical thinking.

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Volume 05 Issue 05 MAY 2022

There is an Open Access article, distributed under the term of the Creative Commons Attribution – Non Commercial 4.0 International (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/), which permits remixing, adapting and building upon the work for non-commercial use, provided the original work is properly cited.