Education has the core of the interaction between educators and students in helping students master educational goals. Educational interactions can take place in the family, school, and community environment, which will support students to develop their educational experience.  Classroom action research is described as an effort to examine the learning activities of students by carrying out a planned action by the teacher and analyzing the effect of actions to improve and improve the quality of learning.     The activity method used in community service activities is (1) lectures, used by the service team to convey the principles of classroom action research, classroom action research procedures, implementation of classroom action research, and procedures for writing classroom action research reports. The lecture was supported by the use of laptops and LCDs to display service materials for a limited time. (2) Demonstration, used by the service team in the hope that participants can start practicing problem formulation in the learning process that can be solved through classroom action research, class action research proposal design, to writing class action research reports.   The conclusion of this community service, namely (1) the community service activities carried out by the Research Team for the Primary School Teacher Education Department with the lecture and demonstration method have been able to improve the understanding of teachers of SDN Cibitung Kulon 01 Bogor about classroom action research and it is hoped that the teacher can simultaneously write the report, (2) writing reports Classroom action research is expected as an effort to develop the profession and at the same time assist teachers in achieving the credit score required for promotion.

The low learning outcomes about mathematics are the background of research problems. The purpose of this study was to improve the mathematics learning outcomes of multiplication material through the Realistic Mathematics Education (RME) learning model for grade III students in the even semester of the 2019/2020 school year. This research method is Classroom Action Research which follows the model of Kemmis and Taggart.  This research includes 3 cycles where each cycle includes 4 stages, namely planning, implementing, observing and reflecting. The research time was from January to March 2020 with 30 students as research subjects, while the data were collected through tests, interviews and observations. The research results show that there is a significant increase in mathematics learning outcomes in class III. This is evidenced by the increase in the average result of the math test in each cycle, namely in cycle 1: 64.26 then cycle 2: 70.86 and cycle 3: 78.2. The results of researcher's observations in each cycle also increased, namely in cycle 1 = 2.44; cycle 2 = 2.88; cycle 3 = 3.89. Likewise, the results of student observations also increased, namely in cycle 1 = 2.4; cycle 2 = 3,2; cycle 3 = 4. And the results of the interviews conducted concluded that learning mathematics through the Realistic Mathematics Education (RME) learning model was fun for students. This study concluded that learning mathematics using the Realistic Mathematics Education (RME) learning model can improve student mathematics learning outcomes on multiplication material.

This study aims to determine the increase in learning interest of students with special needs in science subjects at SDIT Yaditama Ar-Rahman. The subjects in this study were IV grade students totaling 3 people. This research method is classroom action research which consists of four aspects, namely planning, implementation, observation and reflection. Data collection techniques in this study used observation, interviews and documentation. Based on the results of the study, that in cycle 1 the science learning process was said to be not good, because students with special needs did not appear to have an interest in participating in learning. In addition, the teacher in using the demonstration learning model has not been fully implemented properly in each meeting. Whereas in cycle 2 the interest in learning of students with special needs was quite visible and had increased. Penelitian ini bertujuan untuk mengetahui peningkatan minat belajar siswa berkebutuhan khusus dalam mata pelajaran IPA di SDIT Yaditama Ar-Rahman. Subjek dalam penelitian ini adalah siswa kelas IV berjumlah 3 orang. Metode penelitian ini adalah penelitian tindakan kelas yang terdiri dari empat aspek, yaitu perencanaan, pelaksanaan, pengamatan dan refleksi. Teknik pengumpulan data dalam penelitian ini menggunakan observasi, wawancara dan dokumentasi. Berdasarkan hasil penelitian, bahwa pada siklus 1 proses pembelajaran IPA dikatakan belum baik, karena siswa berkebutuhan khusus belum terlihat memiliki minat dalam mengikuti pembelajaran. Selain itu, guru dalam menggunakan model pembelajaran demonstrasi belum sepenuhnya terlaksana dengan baik dalam setiap pertemuan. Sedangkan pada siklus 2 minat belajar siswa berkebutuhan khsus sudah cukup terlihat dan mengalami peningkatan.

The work performance of a teacher today is an inseparable part of our world of education. Currently, being a quality teacher has become an absolute requirement. There are many factors that influence the creation of teacher performance in the school organizations. Some of them are related is principal leadership and teacher performance role. The research aim of this research is to note how the relationship between principal leadership and teacher competence partially and can be influenced teacher performance at SMP Widya Nusantara, Bekasi, West Java. This research method is through a quantitative approach with a questionnaire obtained from 30 respondents. The research result shows that there is a positive and significant relationship between principal leadership and teacher performance. This matter can be observed from t value (5,291) > t table (1,703), then Ho unaccepted and H1 accepted. There is also positive and significant relationship between teacher competence with teacher performance. This matter can be observed from t value (8,307) > t table (1,703), then Ho unaccepted and H2 accepted. From this calculation significant coefficient multiple correlation test obtainable F value = 17,482 > F table at the error level (a) 1% = 7,677. Therefore, it can be concluded that the correlation coefficient between principal leadership and teacher competence is in accordance with teacher performance is significant. It means Ho unaccepted and H3 accepted, in the sense is principal leadership (X1) and teacher competence (X2) is in accordance positively related and significant to performance teacher variable (Y) at SMP Widya Nusantara. Whereas, Correlation Coefficient Value (r) as big as 0,751 means is 75,1% of principle leadership and teacher competence are related to teacher performance at SMP Widya Nusantara, whereas the rest as big as 24,9% related to other factors that unobserved by the researcher.

Natural Sciences (IPA) is the result of human activities in the form of organized ideas and concepts, about the natural surroundings obtained from experience through scientific processes. In learning science, students must be active so that what is learned becomes meaningful. In the initial observation of science lessons at SDN Sukamaju 3, it was found that learning outcomes did not meet the predetermined KKM standard, namely 65, students who finished studying <30%, and student activities were less than optimal because the learning process was boring. This research is a classroom action research that aims to determine the improvement of science learning outcomes at SDN Sukamaju using the inquiry learning method. The subject of this research is the third-grade student number 23, this research is conducted in three cycles in each cycle an objective test is held. In the results of the research cycle I the percentage of student activity results is 69.56% and the average grade is 63.91, then in the second cycle the percentage of student activity is 78.26%, and the average value increases to 64.13, and in the third cycle the percentage student activity is 95.65%, and the average values reach 77.17. Based on the results of this study, it can be said that the application of the inquiry learning model in science lessons on the subject of changing objects can improve the learning outcomes of third-grade students at SDN Sukamaju 3, Tapos District, Depok City.