The Critical Thinking Skills Analysis of High School on Rotational Dynamics

21st-century learning emphasizes the importance of collaboration, creativity, critical thinking, and communication. Critical thinking skills is one thing that students need to have in order to solve problems. Based on the results of a survey by Trends in International Mathematics and Science Study (TIMSS), students in Indonesia rank 46 out of 51 countries in the field of science. This study aims to analyse the critical thinking skills of students of grade XI in SMA Negeri 5 Surakarta on rotational dynamics materials. The method used in this research is descriptive quantitative. Data were collected by giving a multiple-choice test that based on five critical thinking skills indicators by ennis. Tests were given to 70 students.The test result shows critical thinking skills of 51.4% students are low, 34.3% are moderate, and 14.3% are high categorized. Critical thinking skills per indicator, for elementary clarification 61% is high, the basis for the decision 51.9% is moderate, inference 46.7% is moderate, advanced clarication 21.4% is low and strategies and tactics 25.2% is low. The average critical thinking skills of all the students of grade XI in SMA Negeri 5 Surakarta on rotational dynamics is 45%, it can be classified in moderate categorized.