The role of the headmaster's leadership in supporting the culture and quality of the school is very influential for the quality of the school. This leadership is oriented to how the role of the headmaster's leadership in supporting the interactive learning process, conducive schoolenvironment, cultured and quality community. The purpose of the research is: (1) describe how the role of the headmaster's leadership in supporting the culture of SMPK Angelus Custos II Surabaya (2) describes how the role of the headmaster's leadership in supporting the quality of SMPK Angelus Custos II Surabaya. This research uses Qualitative research method. Data collection using research instruments with participant observation methods, in-depth interviews, documentation and literature reviews. The results of this study are: (1) the role of the principal leadership at SMPK Angelus Custos II Surabaya in supporting the culture and quality of education is considered as an important element and optimal enough in determining the direction of school success. (2) The impact of the principal's support in improving the culture and quality of education at SMPK Angelus Custos II Surabaya is quite maximal. It can be concluded that the role of the headmaster's leadership in supporting the culture and quality of the school is very influential in improving the quality of the school.

Instructional leadership is strategically used to improve the quality of learning. This leadership style is leadership oriented to improve the quality of learning, instructional leadership policy becomes the parameters of the school in improving the quality of learners' learning outcomes. The purpose of the study was: knowing and analyzing the influence of instructional leadership models, improving learning activity on student learning outcomes. This research uses quantitative research method. Data collection using research instruments by disseminating questionnaires using google form. The results of this study are: (1) there is an influence of instructional leadership model on improving the activeness of learners' learning; (2) there is an influence of instructional leadership model on learners' learning outcomes; and (3) there is an influence of instructional leadership on improving the activeness of learning and learning outcomes of learners. It can be concluded that instructional leadership is effective in improving the quality of learning.

The role of the headmaster's leadership in supporting the culture and quality of the school is very influential for the quality of the school. This leadership is oriented to how the role of the headmaster's leadership in supporting the interactive learning process, conducive schoolenvironment, cultured and quality community. The purpose of the research is: (1) describe how the role of the headmaster's leadership in supporting the culture of SMPK Angelus Custos II Surabaya (2) describes how the role of the headmaster's leadership in supporting the quality of SMPK Angelus Custos II Surabaya. This research uses Qualitative research method. Data collection using research instruments with participant observation methods, in-depth interviews, documentation and literature reviews. The results of this study are: (1) the role of the principal leadership at SMPK Angelus Custos II Surabaya in supporting the culture and quality of education is considered as an important element and optimal enough in determining the direction of school success. (2) The impact of the principal's support in improving the culture and quality of education at SMPK Angelus Custos II Surabaya is quite maximal. It can be concluded that the role of the headmaster's leadership in supporting the culture and quality of the school is very influential in improving the quality of the school.

Instructional leadership is strategically used to improve the quality of learning. This leadership style is leadership oriented to improve the quality of learning, instructional leadership policy becomes the parameters of the school in improving the quality of learners' learning outcomes. The purpose of the study was: knowing and analyzing the influence of instructional leadership models, improving learning activity on student learning outcomes. This research uses the quantitative research method. Data collection using research instruments by disseminating questionnaires using google form. The results of this study are: 1.) There is an influence of the instructional leadership model on improving the activeness of learners' learning; 2.) There is an influence of the instructional leadership model on learners' learning outcomes; and 3.) There is an influence of instructional leadership on improving the activeness of learning and learning outcomes of learners. It can be concluded that instructional leadership is effective in improving the quality of learning.

Instructional leadership is strategically used to improve the quality of learning. This leadership style is leadership oriented to improve the quality of learning, instructional leadership policy becomes the parameters of the school in improving the quality of learners' learning outcomes. The purpose of the study was: knowing and analyzing the influence of instructional leadership models, improving learning activity on student learning outcomes. This research uses quantitative research method. Data collection using research instruments by disseminating questionnaires using google form. The results of this study are: (1) there is an influence of instructional leadership model on improving the activeness of learners' learning; (2) there is an influence of instructional leadership model on learners' learning outcomes; and (3) there is an influence of instructional leadership on improving the activeness of learning and learning outcomes of learners. It can be concluded that instructional leadership is effective in improving the quality of learning.