Implementation of the inquiry model assisted with quick response code to improve students' critical thinking skills

This research was aimed to study the influence of inquiry learning model with assisted quick response code (QR code) to students' critical thinking skill (CTS) in the learning of salt hydrolysis in one of the senior high school in Banda Aceh. The sample was collected by purposive sampling. The quasi-experiment method was implemented in two classes, accompanied by nonequivalent control group design. Two groups of students from different chemistry class were selected as sample. The results showed that the CTS of students who are taught using enquiry model has higher posttest score compared to control class. Moreover, the results revealed that the comparison of average N-gain for all CTS indicators was 42.37% for control class and 73.57% for experiment class. Statistical analysis with t-test on all CTS indicators showed that the value of t count > t table at α = 0.05. The conclusion of this study is the implementation of inquiry model with assisted QR code improves student' CTS.