Effectiveness of Problem-Based Learning Practicum Guide on Coloid Material on Learning Outcomes Students In Class XI SMA

Abstract

Based on interviews at MAS PERSADA Ulakan Tapakis obtained data that 60% of students were difficult to purchase colloidal material. The chemistry teacher at this school also stated that student learning outcomes in colloid material were still in the moderate category. In this study, a Problem-Based Learning Practicum Guide was available on colloid material. This study aims to reveal the level of effectiveness of Problem Based Learning Practicum Guides on Colloid material. This type of research is Pre-experimental. The population in this study were all Class XI Science Students at MAS PERSADA Ulakan Tapakis. This study used one class with a sampling technique, namely purposive sampling. The research instrument was 20 multiple choice questions. After conducting the research, effectiveness data was obtained as seen from the results of the students' pretest and posttest, where the pretest was carried out before the learning process and postets after learning using a practicum guide. From the research obtained from the data that has been carried out from these results it can be concluded that the Practicum Guide used in the learning process is quite effective where the N-Gain test result is 0.758