The aim of this research is to improve students' ability in problem solving and creativity through project-based learning (PBL) under biotechnology subject. This research is conducted in twelfth grade of SMA Yapida Gunung Putri Bogor. Quasi experiment with non-equivalent pretest-posttest control group design was used. Test instrument was used for measuring problem solving ability and creative thinking. The result shows that there is an improvement in problem solving and creative thinking ability in experimental class after applying projectbased learning. The score of n-gain for problem solving ability in experimental group is 0.73 (high) and control group is 0.53 (medium). The n-gain score for creative thinking ability in experimental group is 0.73 (high) and in control group is 0.53 (medium). Hypothesis testing of n-gain score for problem solving and creative thinking skill is 0.001 (significant). Project based learning gives students learning experience which initiated with authentic and factual problem; therefore, it can help students in finding appropriate solution. In conclusion, project-based learning can be applied as alternative for improving students' ability in problem solving and creative thinking in high school students.
This study aims to improve students' problem-solving abilities and creativity through project-based biotechnology learning. The research was conducted at a public high school in Gunung Putri, Bogor. This study involved students of class XI science which were divided into 2 groups, namely the experimental class and the control class. The research method used quasi-experimental with non-equivalent pretest-posttest control group design. The instruments used essays, questionnaires and observations. The results of this study are supported by the n-gain value of problem solving ability and creative thinking in the experimental class 0.73 (high) and the control class 0.53 (medium). Learning activities are very active and dynamic, students must communicate, be creative, think critically and collaborate. Student response was very enthusiastic. The conclusion of the research can be seen that project-based learning can improve problem solving and creativity of high school students.
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