The aims of this research were to find the effect of Academic Supervision of School Principal and Work Motivation toward Teacher's Performance of Bussines and Management Group State's and Private's Vocational High School in Depok City directly or indirectly. The population of this research was Bussines and Management teachers in Depok City amounting to 384 people. The sample in this research amounted to 80 people. The sampling method was done by using proportionate random sampling. Data collection is done by filling questionaires. Analysis of the data used is path analysis. Data processing is performed with IBM SPSS version 23.0 for Windows. The results showed that there is significant influence between Academic Supervision of School Principal to Work Motivation (1), Academic Supervision of School Principal to Teacher's Performance (2), and Work Motivation to Teacher's Performance (3). Totally, the magnitude of the effect is known 68,39 % directly and indirectly, while the remaining 37,10% is influenced by other factors not examined in of this research.

<span lang="EN-US">The 2013 curriculum which has been implemented for more than six years in Indonesia has many problems in its application. Therefore, we need to conduct empirical research to determine the causes of the ineffective implementation of the 2013 curriculum in schools. This study involved 13 high schools and vocational high schools in the provinces of DKI Jakarta and West Java with a total of 420 students, 26 teachers, and principals as respondents. The research employed mixed parallel method and data analysis using combined analysis of qualitative and quantitative approaches. The research found that there are still schools that use two different curricula, 2013 curriculum and school-based curriculum. In implementing the 2013 curriculum, teachers are required to use various learning with a scientific approach that refers to student-centered concepts. There is a need for the training program to improve teachers’ professional competence, especially in the terms of various learning methods mastery.</span>

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh servant leadership, komitmen organisasi dan lingkungan fisik secara bersama-sama terhadap kinerja guru, pengaruh servant leadership terhadap kinerja guru, komitmen organisasi terhadap kinerja guru, lingkungan kerja fisik terhadap kinerja guru. Metode penelitian yang digunakan adalah survey. Jumlah sampel 63 orang guru, teknik sampling yang digunakan yaitu cluster sampling yang diambil dari 3 Sekolah Menengah Kejuruan Negeri (SMK) di Kotamadya Jakarta Timur secara proporsional. Hasil penelitian: 1.) Terdapat pengaruh yang positif dan signifikan servant leadership, komitmen organisasi dan lingkungan kerja fisik secara bersama-sama terhadap kinerja guru; 2.) Terdapat pengaruh yang positif dan signifikan servant leadership terhadap kinerja; 3.) Terdapat pengaruh yang positif dan signifikan komitmen organisasi terhadap kinerja guru; dan 4.) Tidak terdapat pengaruh yang positif dan signifikan lingkungan kerja fisik terhadap kinerja guru. AbstractThe purpose of this study was to determine the effect of servant leadership, organizational commitment, and the physical environment together on teacher performance, the influence of servant leadership on teacher performance, organizational commitment to teacher performance, physical work environment on teacher performance. The research method used was a survey. The total sample of 63 teachers, the sampling technique used is cluster sampling taken from 3 State Vocational High Schools in the Municipality of East Jakarta proportionally. Research results: 1.) There is a positive and significant influence of servant leadership, organizational commitment, and physical work environment together on teacher performance; 2.) There is a positive and significant influence of servant leadership on performance; 3.) There is a positive and significant influence of organizational commitment on teacher performance; and 4.) There is no positive and significant influence of the physical work environment on teacher performance.

The purpose of this study was to determine the effect of leadership effectiveness, task commitment and work environment together on teacher performance, effect of leadership effectiveness on teacher performance, task commitment to teacher performance, work environment on teacher performance. The research method used is a survey. The sample size is 91 teachers, the sampling technique used is random cluster sampling. Data collection using a questionnaire. Data analysis consists of testing the validity and reliability of the institution, the prerequisite test for data analysis and description. Testing the hypothesis with linear regression techniques. The results of the study addressed (1) There was a significant effect of Leadership Effectiveness and Task Commitment together on Teacher Performance. (2) There is a significant effect of Leadership Effectiveness on Vocational High School Teacher Performance. (3) There is a significant effect of Task Commitment on Teacher Performance. (4) There is a significant effect of the Work Environment on Teacher Performance.

The decline in learning outcomes in Statistics is a problem that must be immediately solved. Many factors affect learning outcomes such as; intelligence, interest, talent, motivation, learning patterns, learning resources, and so on. The data used in this study are secondary data from TU-FIPPS and BAAK which consists of data on final grades of Statistics students of the Economic Education Study Program, Indraprasta PGRI University. In addition, researchers also use primary data collected through surveys. Data analysis using the Chi-squared Automatic Interaction Detection (CHAID) method. Based on the results of this study, explanatory variables that affect the decline in student learning outcomes Statistics are variables of motivation and group learning frequency. The explanatory variable which has the strongest influence with the decrease in student learning outcomes Statistics is motivation. The value of the accuracy of student classifications produced using CHAID analysis of eighty-five point one percent. The classification tree model of CHAID analysis in this study is better and more accurate for estimating the decline in learning outcomes Statistics in the downward category than in the non-down or very down categories.