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Every activity is bound to be presented with obstacles, this research describes the obstacles to the solutions suggested by the researchers. Based on the research results, extracurricular activities are divided into 2 (two) parts, namely mandatory and optional extracurricular activities. This is in the Minister of Education and Culture Regulation Number 63 of 2014 concerning extracurricular activities in educational units. One of the extracurricular activities that must be implemented at every level is the Scout Education extracurricular as implemented in the 2013 curriculum. Scout Education plays a role as a vehicle for complementary activities in the learning process with the aim of forming and developing student character. In the implementation of Scout Education extracurricular activities there are 3 (three) models, namely the Block Model, Actualization Model and Regular Model. This research method uses a descriptive qualitative method, namely the research results are presented descriptively.  

The purpose of carrying out this research is to find out: (1) The steps for implementing individual guidance by the principal for teachers to increase teacher work productivity at SMP Negeri 3 Muntok, and (2) The magnitude of the increase in teacher work productivity after implementing individual guidance developed by the school principal . This research is school action research analyzed using a qualitative approach. The research was carried out at SMP Negeri 3 Muntok in 2019. The research results obtained were: (1) The implementation of individual guidance can be developed based on the steps: (1) Guidance on developing learning models through comparative studies and follow-up planning, followed by analytical guidance SWOT; (2) Guidance on the implementation of educational administration, followed by providing direct feedback on the results of the teacher's work; (3) Advanced guidance sets reliable targets, developed through joint evaluation of program targets for other teachers who are also experiencing the same problems; (4) Guidance on how to carry out collaboration with other teachers in more depth, up to the ability to demonstrate the materials needed by other teachers; (5) Guidance on effective and efficient work strategies, which are developed through training in determining optimal quantity figures and how to measure them, namely through scoring techniques; (6) Developing motivational guidance; (7) Building independence so that teachers avoid plagiarism-based activities, and guidance in making effective plans; (8) Guidance in making effective work planning coupled with innovative aspects; (9) Encourage teachers to implement programs to increase teacher competency through seminars and workshops followed by implementation of the results of new experiences from teacher activities; (2) The implementation of individual guidance is able to increase teacher work productivity in schools by resolving teacher problems in the development and implementation of learning programs in schools.

This study aims to improve student learning outcomes in mathematics class X MIPA 2 at SMA Negeri 2 Medan using the Group Investigation learning model. This research is a class action research. The subjects of this study were students of class X MIPA 2 with a total of 36 students. This research consisted of two cycles with two meetings in each cycle. Each meeting carried out a test of learning outcomes. Data collection techniques used learning achievement tests, observation sheets and student response questionnaires. Data analysis techniques use data reduction and data exposure. The results of this study indicate that the application of the Group Investigation learning model in mathematics learning can improve student learning outcomes in class X MIPA 2. This increase in learning outcomes can be seen from student contributions during the learning process in the form of student learning outcomes tests, students pay attention to the teacher's explanation, students express opinions , students work with groups, student responses to the use of learning models and the results of observations. The increase in classical completeness on the learning outcomes test I cycle I was 19.44%. Meanwhile, learning outcomes II in cycle I increased to 44.44%. In cycle II, the classical completeness test III of 86.11% increased to 94.44% in the fourth learning achievement test. The observation results showed that in the first cycle it increased from 3.54 to 3.73 in the very good category and the student response to learning using the Group Investigation model in the first cycle was 85% increasing to 90% in the second cycle. It can be concluded that almost all students in class X MIPA 2 gave a positive response and accepted the implementation of the Group Investigation learning model in class X MIPA 2. Based on the results of this study it can be concluded that the Group Investigation Learning Model can improve student learning outcomes in Mathematics Learning at SMA Negeri 2 Medan.

This study aims to determine the application of the Problem Based Learning learning model to mathematical communication skills in terms of independent learning on set material in class VII SMP Negeri 01 Tayan Hulu. The research form used is quasi-experimental designs, with a 2×3 factorial design. The population in this study were students of class VII A and students of class VII B. The sample in this study was one class selected by cluster random sampling. Data collection techniques used are direct communication techniques and measurement techniques with data collection tools in the form of questionnaires and test questions in the form of essays. The data analysis technique used was the analysis of two dissimilar cell paths with the normality test using the Lilifors test, homogeneity using the Bartlett test and continued with the multiple comparison test using the Scheffe method. The results of this study are (1) the mathematical communication of students who follow the problem-based learning model is better than students who follow the conventional learning model, (2) the ability of mathematical communication between students who have high learning independence is better than moderate after the implementation of the model learning problem based learning. (3) students' mathematical communication skills in the moderate learning independence category were better than students in the low learning independence category after applying the problem-based learning model. (4) at the level of independent learning, problem-based learning models provide better mathematical communication skills than conventional learning models.    

Based on observations made at SMA Negeri 1 Gunuang Omeh District, the problem found was the low interest in learning of students in PAI and BP subjects due to the large number of students who did not pay attention to the teacher's explanation, and the lack of use of learning models and media used in learning , one of which is the Problem Based Learning learning model. The role of the learning model is very important, because using visual media will be able to influence students' learning interests. The purpose of this study was to find out the use of the Problem Based Learning learning model in increasing students' learning interest in PAI and BP subjects on Da'wah Strategy and Islamic Development in Indonesia Class XII.MIPA at SMA Negeri 1 Gunuang Omeh District. This type of research is Classroom Action Research (PTK). The process of implementing PTK has four main components, namely planning, action, observation and reflection carried out in 3 cycles. The results of data analysis obtained the percentage of students' learning interest using the Problem Based Learning learning model of 44.83% in cycle I. The process of applying the Problem Based Learning learning model in PAI and BP learning increased in cycle II by 65.52% and 79.31 % in cycle III. So it can be concluded that the implementation of PAI and BP learning by using the Problem Based Learning learning model can increase students' learning interest.