Turnitin: The Increasing Students’ Critical Thinking Skills through Learning Cycle "5E" using Dice in Learning Probability

To improve a good critical thinking skill of students, a teacher needs to innovate in choosing an appropriate model using in classroom learning. A learning cycle “5E“ model is one of models that can be used to enhance students' critical thinking skills. The purpose of this study is to determine the increasing of students 'critical thinking skills in learning probabilities by using a learning cycle "5E" model, and to determine the differences of students' critical thinking skills that are taught by applying the learning cycle "5E" model than students who are taught without applying the learning cycle "5E" model. The data was analyzed by using t-test. The data analyzing indicates that there is the enhancing of students' critical thinking skills by using the learning cycle "5E" model and found that 29.17 % of students are highly critical and 58.33 % of students are critical. The results showed that the students' critical thinking skills that are taught by applying the learning cycle "5E" model using a medium dice is better than students’ critical thinking skills of students who are taught without applying the learning cycle "5E" model.