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Learning supplements are learning media supporting the material or the primary media used in the learning process. Today's 21st-century learning has to integrate technology and learning activities. This research aims to develop a digital educational comic learning supplement for Vocational High Schools (SMK). The subjects of this study were students of tenth grade from SMK Negeri 46 Jakarta. This type of research is development research, which is adopted from the Borg and Gall development model. The instruments used in this research include media validation sheets, teacher interviews, response questionnaires, and learning outcomes tests. Based on media trials in the field, the following results were obtained: 1) The media developed was feasible with an average media validation questionnaire by experts of 91.5%. 2) The results of the effectiveness test of the digital educational comic learning supplement developed on waste material can improve student learning outcomes. These results show that the digital education comic learning supplement developed is feasible to be used in supporting learning activities in the classroom. [ABSTRACT FROM AUTHOR]

The mangrove forest ecosystem has a significant contribution to the biota that live in the surrounding waters as a food source, one of which is the gastropod class. The purpose of this study is to determine mangrove density, gastropod abundance, and the correlation between mangrove density and gastropod abundance. This research was conducted in March to June 2022 in the Pulau Rambut Wildlife Reserve. The method used in this research is a survey method in the field by drawing a line 50 meters long, then dividing the line into three plots, measuring 10 x 10 meters with a distance between plots of 10 meters. In order to determine the sampling point to take gastropods is by using the purposive sampling technique was used. The data is categorized based on the variables. Mangrove density is variable X, and the abundance of gastropods is variable Y. The results showed that the mangrove density in the North, East, and Southwest of the Pulau Rambut Wildlife Reserve was included in the very good category with a value of 33,400 ind/ha. The highest abundance of gastropods was dominated by the species Aclis sp., with a total of 4,089 individuals, and the lowest was Monodonta sp. totaling six individuals. Mangrove substrate and organic matter content in the area determine the abundance of gastropods. The correlation between mangrove density and gastropod abundance was calculated using simple linear regression analysis with a correlation coefficient of 0.148, while the value of a determination coefficient was 0.022, which means it is positively correlated. [ABSTRACT FROM AUTHOR]

The aim of this study was to engage students in 21st century learning through the implementation of a Dilemma-Science, Technology, Engineering, Arts, and Mathematics (STEAM) teaching model. The Dilemma-STEAM teaching model integrates dilemma stories with problem solving tasks to support students' thinking and problem solving using the STEAM approach. Qualitative research was employed in three schools involving 25 students in a primary school and 60 students in two junior high schools. The data were collected through semi-structured interviews, reflective journals, and classroom observations. The students discussed a dilemma story about energy and thematic data analysis found that they solved problems and construct their understanding of STEAM concepts such as environmental car, oven, and hydroelectric power plants using a range of different strategies. In solving the problems, the activities helped the students to develop the 21st century skills of critical and creative thinking, and collaboration and communication skills. Finally, a dilemma-STEAM model enabled a multidisciplinary approach to be used in conducting science lessons to provide meaningful learning experiences for students. [ABSTRACT FROM AUTHOR]

Micro-teaching is a teaching method currently used by many universities in Indonesia to provide real-world experiences and practice basic teaching skills. This method is able to provide optimal results when it is accompanied by observation, assessment, and optimal feedback to students. Observation, assessment, and feedback activities will run well if the adequate assessment instruments support them, meet the current demands, and are valid. This study aims to develop and validate an instrument for assessing basic teaching skills in implementing microteaching. The instrument was developed by adding skills in using technology in TPACK-based learning following the demands of teacher competence in the 21st century. This research is a development research which involves 53 students as samples. The instrument that has been developed can be used to implement online or offline microteaching. A total of 78 statement items were generated to assess eight basic teaching skills. Three validators carried out expert validation and stated that 92.4% of the instrument was feasible. The reliability test with Cronbach's alpha is 0.9 (very reliable). The item validity test resulted in 56 valid items, and for the evaluation survey, student responses as instrument users gave good results. [ABSTRACT FROM AUTHOR]

Online learning has become a new learning in modern times that makes it easier to convey learning topics. The purpose of this study was to develop teaching materials in the form of an Online Learning Integrated Book on Environmental Balance (OLIBEB). This research was conducted from March to June 2021 at the Universitas Negeri Jakarta. This study used the Research and Development (R & D) method. The results of the study showed that the assessment carried out by three experts, namely media experts, material experts and linguists had very decent results. The percentage of the feasibility of Online Learning Integrated Book on Environmental Balance according to the media experts was 86% and according to Linguist at 82%, which were categorized as very valid, whereas according to the material at 73%, which was categorized as valid. Assessments from small groups and large groups had the same value of 95%, with very valid categories. The conclusion is that OLIBEB is very valid and suitable for use in learning at school. [ABSTRACT FROM AUTHOR]

Environmental pollution knowledge is a part of environmental knowledge which discuss any released substance that might damage natural resources and environmental system. The importance of environmental pollution knowledge correlates with conservation behavior, which is a real action to preserve the environment and protect natural resources. Conservation behavior is also important to stop the degradation of our environment. This research aims to know the relationship between environmental pollution knowledge and conservation behavior of 100 high school students, which was selected by simple random sampling. The research was conducted at Labschool Jakarta Senior High School in November 2019. The instruments used for measuring students' knowledge of environmental pollution are made based on dimensions of Anderson and Krathwol (Factual, Conceptual, Procedural) as many as 32 questions. The instrument used for measuring students' Conservation Behavior is in the form of a statement that has been modified by researchers from the General Ecological Behavior (GEB) that was developed by Kaiser as many as 39 statements. The method was descriptive with a correlational study. The analysis data techniques were normality test, homogeneity test, and hypothesis test. From these tests, we know that the data were normal and also homogenous. The research showed a positive relationship between Environmental Pollution Knowledge and Conservation Behavior of High School Students. These indicate that high school students have to raise environmental pollution knowledge to enhance conservation behavior. [ABSTRACT FROM AUTHOR]

Environmental pollution knowledge is the results of a person's sensing that is obtained from the entry of substances that are detrimental to the environment and affect the use of resources. Environmental pollution knowledge can play a role to form Green purchase intention. Green purchase intention is the intention to do and keep doing purchases or products that are less or less harmful to the community and the environment. This research aimed to know the relationship between environmental pollution knowledge and green purchase intention of 180 from 320 population students who were selected by simple random sampling. Research conducted at 4 universities of DKI Jakarta Province in November 2019. Environmental Pollution Knowledge instruments used based on dimensions according to Anderson and Krathwol theory (Factual, Conceptual, Procedural) as many as 35 questions. Green purchase Intention instruments used a questionnaire that had been developed by Ajzen from the Theory of Planned Behavior as many as 33 statements. The method was descriptive with a correlational study. Data were normal and homogenous. The research showed a positive relationship between Environmental Pollution Knowledge and Green purchase intention of Students. These implicated that students have to raise the environmental pollution knowledge to enhance the Green purchase intention. [ABSTRACT FROM AUTHOR]

The increased use of plastics can cause adverse effects on the environment. One solution is to choose biodegradable plastic. Biodegradable plastic is a plastic that can be decomposed with the help of microorganisms. Students must have environmental knowledge in order to choose biodegradable plastic. Environmental knowledge includes the use of plastics and the impact that arises. This study aimed to determine the contribution of environmental knowledge towards the selection of biodegradable plastic. This research was conducted at the Biology Education Study Program of State University of Jakarta. The research used a descriptive method through correlational study. Sampling was done through a simple random sampling technique with 79 students. Data showed a normal distribution and a homogeneous variance. The regression model obtained was Y = 88.124 + 0.223X. The correlation coefficient was 0.223, which means there was only low correlation. This research concluded that environmental knowledge supported 4.97% of students' choice to select biodegradable plastic. This indicates that many other factors influence the behavior of biodegradable plastics selection. [ABSTRACT FROM AUTHOR]