Kepemimpinan Guru dalam Pembelajaran Matematika Kelas XI SMK N 2 Surakarta Tahun Pelajaran 2017/2018

This study aimed to describe the leadership of teachers in mathematics learning in class XI SMK Country 2 Surakarta School Year 2017/2018. This type of research is qualitative research . The subjects of the recipient of the action were students of class XI SMK Country 2 Surakarta 3 classes, namely XI TPM D, XI TKBB, XI TKR A which amounted to 90 students and the subject of the action was the researcher assisted by a mathematics teacher. Method of collecting data through observation, interviews, field notes and documentation. Data analysis techniques were carried out descriptively qualitative with a flow model consisting of date collection, data reduction, data presentation, verification and conclusion 2 drawing. The results of this study indicate that: (1) the efforts Risk-Taking of a mathematical teacher in learning by trying several appropriate methods in accordance with mathematical competencies and the state of students, using learning media, using online learning so as not to seem boring, give students confidence to search for literature and information about technological advances in the world of work related to mathematical competencies (2) the efforts Effectiveness of the mathematics teacher in learning by approaching students, understand the character of students so that they feel close, not acute with the teacher , dare to ask questions about mathematical competencies that have not been understood, and feel cared for acknowledged by students who have the ability and skills. (3) the effort Autonomy of the mathematics teacher in learning by providing motivation through videos about education that describe technological developments and the world of work in accordance with the student's majors so that students are more eager to learn in order to achieve the desired dream. (4) the effort Collegiality of teachers matematicz in learning by approaching sis w a private, invite students to dialogue about the future and the dreams that you want, recognize family background da n neighborhood, invite students to improve themselves through faith and piety in synergy den gan science and provides a communication medium in the form g rup online social media to enable students both inside and outside the school can be productive communication so that students succeed in education and future