Improving Critical Thinking Skills through Module Solubility and Solubility Results Based on Discovery Learning with Probing Prompting Techniques at SMAN 1 Pariaman

This study aims to determine the improvement of student critical thinking based on discovery learning using modules
that help investigate questions that encourage questions about solubility and solubility results. The research design used was the
Non-Equivalent Post-test Group Design. The population in this study was students of class XI IPA SMAN 1 Pariaman academic
year 2018/2019. The selection of sample classes is done by cluster purposive sampling technique. The sample in this study was class
XI IPA 1 as the control class and XI IPA 2 as the experimental class. The experimental learning class uses modules based on
discovery learning with techniques probing prompting, while the control class without using modules. The research instrument used
was a test of the results of learning critical thinking questions. The results of the study show that module based discovery learning
with techniques probing prompting can improve students' critical thinking skills, as evidenced by the average increase in posttest
results. The results of testing for normality and homogeneity state that the critical thinking value of the two distributed samples is
normal and homogeneous. Hypothesis test results obtained by GIS. (2-tailed) of 0.016 <0.05 means that the value of critical
thinking learners who use modules is based on discovery learning by techniques probing prompting differ significantly.