<![CDATA[The objectives of this research were to get the successfulness: (1) in the identify improvement of the learning activeness in the Lathe Machining subject matter of the students in Grade XI Machinery 3 of Pancasila Vocational High School of Surakarta through the application of the cooperative learning model of the IOC type; and (2) in the identify improvement of the learning achievement in the Lathe Machining subject matter of the students in Grade XI M3 of Pancasila Vocational High School of Surakarta through the application of the cooperative learning model of the IOC type. This research used the classroom action research with two cycles. Each cycle consisted of four phases, namely: planning, implementation, observation, and reflection. The subjects of research were the students in Grade XI Machinery 3 of the aforementioned school. The sources of research data were observation sheet on the learning activeness and the test of achievement. The data of research were collected through test, written test items non-test. Students? learning activeness observation sheet during the implementation. They were validated through content validity for the data obtained through test and triangulation time validity for the data obtained through non-test. Analyzed by using the descriptive qualitative and descriptive comparative technique of analysis. The procedures of research consisted of a series of four activities, which were done in s repeated cycle namely: planning, implementation, observation, and reflection. The result of research: (1) learning activeness in pre-cycle 50%. the first cyle, the learning activiness 65,19%. The second cycle, the learning activiness 82,37%. The used of cooperative learning model of the IOC type can also improvement learning achievement of the students? with the result: (2) The achievement in pre-cycle 41,67%. The first cycle, the achievement 54,17%. The second cycle, the achievement 83,33%. The conclutions of this research: (1) the used of cooperative learning model of the IOC type at Lathe Machining subject matter can improvement the learning activiness of the students? in Grade XI Machinery 3 of Pancasila Vocational High School of Surakarta, (2) the used of cooperative learning model of the IOC type at Lathe Machining subject matter can improvement the learning achievement of the students? in Grade XI Machinery 3 of Pancasila Vocational High School of Surakarta. ]]>
