Adolescence is a transition period with specific needs for growth and development. The reproduction of health education is essential to be given to adolescents because they are susceptible to the risks of reproduction health problems. Giving explanations of health education for adolescents by using media will maximize them in absorbing information since media has become an integral part of adolescents' life. One alternative media that is close and familiar with adolescents is an Android application that can be easily accessed by teenagers who have it through a handphone. The purpose of this study was to know the effectiveness of android based applications at the Central Jakarta Senior High School. The method of this research is a quasi-experimental research with control group design. Sampling by cluster sampling method at SMAN 1 Jakarta as an intervention group and SMAN 5 Jakarta as a control group. Statistical tests using the Paired T-Test, Wilcoxon Test, and Mann Whitney test. The results of the study show what is meant by the knowledge of adolescents with a value of p = 0,000, so Android application can be applied as a media tool about improving the health of adolescents in schools.

Reproductive health education for deaf adolescents in Indonesia still rarely gets the government's attention and educators in particular. Reproductive health education for deaf adolescents. This reproductive problem for the deaf is evident from the lack of comprehensive literature on the reproductive health of deaf adolescents. Information about reproductive health is necessary because deaf adolescents usually have the same development and sexual desires as normal adolescents. This research analyzes the need for digital reproductive health promotion media for deaf students. This research is explanatory research with a qualitative approach for the needs of digital-based promotional media for reproductive health during puberty. Data collection techniques using questionnaires and in-depth interview guides. Data analysis using content analysis (content analysis). All of the informants stated that they had never received reproductive health counselling. They were also never invited to discuss changes in puberty. The majority of students and parents stated that they needed reproductive health promotion media that were easily accessible and adapted to the limitations of deaf students. The media for promoting reproductive health during puberty that deaf students need focuses on text and images delivered digital-based so that they are easy to access.

Various adolescent health problems in Indonesia are so complex, not only related to physical but also related to psychosocial aspects. When teenagers have to struggle to recognize the sides of themselves that are experiencing physical-psychic and social changes due to puberty, society instead tries to hide everything about sex and leave teenagers with question marks in their minds. The view that sex is taboo, makes teenagers reluctant to discuss reproductive health with others. The lack of accurate and correct information about reproductive health makes teenagers seek access and explore themselves. Health education for adolescents needs to be provided with the right methods and media. Audiovisual media is a learning tool or media that uses video or mobile display, this media is a modern learning among the community and effective for teenagers so that they can absorb the material provided to the maximum.This study aims to determine the influence of audiovisual media on increasing adolescent knowledge about reproductive health. This research is a quantitative study with quasi-experimental design one group without control, with a sample of 50 respondents. Respondents measured the rate ofyears before and after intervention, namely health education using audiovisual media.The results of the study: dependent t-test dependent statistical test on post-test knowledge about reproductive health increased by 6.46 to 8.06 with p value of 0.000 indicating the influence of audiovisual media provision on improving adolescent reproductive health knowledge.

Background: Entering puberty, a young girl will experience various changes. One of them is having menstruation. Menstruation is one of the critical events in life that girls should know. It happens because menstruation does not come once and then disappears in a woman's life, but there is a menstrual cycle that comes every month. Young girls need adequate information to deal with menstruation for the first time. Knowledge should be given to the young girl to deal with menstruation, such as physical and psychic changes. This study aimed to determine the effect of health promotion through animated videos on increasing the knowledge and attitudes of elementary school children facing menarche Methods: This quantitative study used a quasi-experimental design. The population in this study was all 5th-grade elementary school students who had not had menstruation. The sample size was 38 respondents for each group, intervention, and control Result: The results showed a difference in knowledge scores between the intervention and control groups with a p-value of 0.000. There was a difference in attitude scores in the control and intervention groups with a p-value of 0.031. Conclusion: There is an increase in knowledge scores and attitudes before and after the intervention. The difference in the intervention group's knowledge and attitude level scores and the control group and the animated video preparation of menarche influence knowledge and attitude.

Indonesia is the country with the highest child marriage after Cambodia. In addition, West Java Province has the highest absolute number of child marriages in Indonesia (273,300 child marriages). In addition, it also ranks first nationally for out-of-school children at the elementary, junior high, and high school/vocational school levels. Health cadres do not understand their duties and roles in reducing MMR, one of which is knowledge about the impact of child marriage. This activity aims to increase the knowledge and attitudes of health cadres through health education and to empower the potential of existing communities to prevent child marriage. This activity with Preparing, Participatory Programming, Reinventing Assets, Designing, Communicating, Implementing, and Evaluating. Results: The number of cadres who participated in counseling was 25 people. The potential that exists is the presence of midwives and community leaders. Youth of as many as 450 people, 20 children who dropped out of school had elementary school education, 18 had junior high school diplomas, and 4 cases of early marriage. Based on the SWOT analysis, Pondok Rajeg Kelurahan is in quadrant II which requires strategic diversification. Evaluation of activities revealed from the results of the Willcoxon test that there was an effect of health education using early marriage flyers on knowledge p-value = 0.002 (p-value <0.05) and attitude p-value = 0.002 (p-value <0.05 ). Health cadres understand one of their roles and duties from the influence of leaflets on increasing knowledge and positive changes in cadre attitudes to address the problem of early marriage. In addition, their commitment to implementing early marriage prevention and its impact.