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Adolescence is a transition period, namely a phase of development between childhood and adulthood. The main problem for teenagers in general is the search for identity. They experience an identity crisis. This is a problem for every teenager. implementation of activities to deliver material on the dangers of drugs. The activities were carried out together by the students as planned. The participants' ability to answer material questions can be said to be good (75%) correctly. Delivery of material using lecture and demonstration methods supports participants' ability to master the material presented by the service team. Education about the dangers of drugs is going well. Increased knowledge and skills for participants

Background: Improving the quality of life of Indonesian people can be done through educational efforts both at school and outside of school. The School Health Business (UKS) is a basic health business aimed at schools and is the duty of the public health center to achieve health and improve learning achievement of school children). One of the functions of the UKS is as a forum for providing early health education especially for school children. Method: Before the implementation of the activity, the number of students involved amounted to 40 people, while the selection of students based on grade 8 and grade 9 would be selected again after getting extension activities and transforming as a UKS cadre. Activity Methods Used (1) Lecture and Demonstration Methods to discuss General Knowledge about School Health Enterprises (UKS), the role and participation of students in UKS activities, Efforts to Encourage, (2) Learning Methods Used to Transfer Assistance or Skills from the Value System Owned resource person to students. As a guest speaker providing health examination exercises for special UKS cadre students consisting of general physical examination and vital signs (blood pressure, temperature, pulse and breathing). Results: The results of the data collection obtained for SMP did not have its own UKS room ,but it was still combined with the primary school room which was still in the same building. Schools do not have UKS cadres and have never done UKS program activities. The level of student knowledge related to UKS is also very low. Conclusion: the level of student knowledge after counseling was found as many as 36 (86%) people have good knowledge and 6 people (14%) have enough knowledge. This shows that the provision of counseling and training can increase student knowledge. Suggestions, for SatyaSai Junior High School and Denut 3 Public Health Center to make a policy about the importance of UKS and to continue the program to have UKS space and to form a UKS structure so that good student behavior is formed to increase PHBS in schools and to follow up 

This research is motivated by the problem of lack of understanding and attention export drivers in carrying out work in the factory area because of the facilities used still using conventional methods, so that export drivers experience difficulty in understanding work processes in terms of stuffing and resulting procedures losses in terms of time, energy and financial. The way to overcome this in this study is the use of use outreach media as a tool for export officers who display 2D images and interesting explanations as well as music, using the Demonstration delivery method so that export drivers get better performance and easily understand the material delivered by the export officer. This research uses the Research and Development product development method (RnD), using 6 out of 10 stages of research namely potential and problems, gathering data, product design, design validation, design improvements and product trials. The results of this study are to produce aids for export officers by using Adobe Flash CS3 software with validity values ​​from media experts 3.0 where it is declared feasible, the validity value of the material expert is 3.3 where stated very feasible, and increase the understanding of export drivers from 65% to start upto 87.50%

Every two minutes one person dies of cardiac arrest. death rates can  be prevented if the victim gets immediate assistance, if someone who is trained in pulmonary cardiac resuscitation (CPR) provides basic life support until medical assistance takes over. Basic life support can be done by anyone and anywhere as soon as possible at the beginning of the occurrence of cardiac arrest to increase survival. This activity aims to provided health education to the community so that they can know and demonstrate how to provide basic life support in cases of cardiac arrest. Methods: Health education uses the lecture method of discussion accompanied by demonstration with power point media which is assisted with LCD and projector for 30 minutes then followed by demonstration using CPR manikin(Cardiopulmonary Resuscitation) for 10 minutes. A sample size of 30 people in Br. Tek-Tek, Desa Peguyangan, Denpasar Utara with accidental sampling technique. Results: The minimum results achieved are 80% at the point of practicing how to provide pulmonary heart resuscitation and a value of 100% is at 2 points of each evaluation which mentions the meaning of basic life support and mentions the steps of basic life support, while for indications and contraindications from basic life support 90% of participants were able to mention it. Conclusion: Health education program activities and demonstrations about basic life support that have been implemented are very useful to increase knowledge and are expected to be able to practice and provide first aid in cases of respiratory arrest and cardiac arrest. 

SMK Kyai Ageng Pandanaran Semarang  is one of the private vocational high school that want to improve quality of teaching and learning to produce quality graduates. During these teaching and learning methods that are used less than maximum, students are easily saturated, study time is limited and there are no facilities for new teachers to learn service and auto repair material  efficiently. The authors develop a learning media services and auto repair expert system based that aims to resolve the issue. Learning media is developed by prototype approach. Expert system technology advanced trace method is applied into the learning media through   the facilities of diagnosis and troubleshooting to help new teachers and student learning to identify the damage automobile. Database can be managed and updated by senior teachers by utilizing the MySQL database and PHP programming language. In addition, this learning media also features video demonstration of the *.swf file and the theoretical material in the form of a *.pdf file. The results of the development has produced a new system of web-based expert system as a supplement learning media services and auto repair in the process of teaching and learning activities.

Utilization of a mobile device with the Android operating system that is used as a supporting medium and supplement in improving learning outcomes combined with demonstration and discovery learning or demon-disco learning methods is needed to help students improve learning outcomes in vocational competence subjects in hydroponic crop cultivation in vocational high schools Kristen Terang Bangsa, because the use of android-based applications can provide new experiences regarding the use of information and communication technology, as well as provide opportunities for students to be able to learn more independently. The concept chosen as a learning media is to explain the material about understanding, introduction of parts, types, and quiz containing questions about hydroponic plant cultivation. This research uses the Research and Development (RnD) product development method, using 6 out of 10 stages research that is the potential and problems, data collection, product design, design validation, design improvement, product trials. The results of this study are to produce learning media in the form of Android-based applications. The validity value of media experts is 2.6 which is declared feasible, while the validity value of material experts is 3.6 which is declared feasible, and is able to increase the average value in the subject of vocational competence in hydroponic cultivation in Christian Terang Bangsa Vocational Schools which initially 67 (with 13 students who had not yet reached KKM) to 80 (with 4 students who had not yet reached KKM).