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This research is motivated by the lack of availability of learning media usage and conventional learning. Therefore, an effectiveness test of the periodic table of the ladder media was conducted to improve the learning outcomes of students at SMKN 1 BP BR on the topic of periodic table of elements. This research is a pre-experimental study aimed at assessing the effectiveness of media usage using data analysis techniques through pretest-posttest assessments. The population in this study is the students of class X TBSM SMKN 1 BP BR. The research instrument is a learning outcomes test consisting of 25 multiple-choice questions that have been pilot tested. The data analysis techniques used are the t-test to determine differences in learning outcomes and the N-Gain test to determine the improvement in students' understanding. The results of the study show that there are differences and improvements in students' learning outcomes. This is evidenced by the average posttest score of 86.67. The improvement in learning outcomes is also supported by hypothesis testing conducted with the t-test, obtaining a t-value (3.45) > t-table (1.21). Another supporting evidence is the average N-Gain test score of 0.75 with a high category. Thus, it can be concluded that the use of the periodic table of the ladder media is effective in improving students' learning outcomes with a high category. This media is suitable for chemistry learning that is symbolic, as it will be more engaging and challenging through direct student involvement in the learning process.

This research is motivated by the lack of availability of learning media usage and conventional learning. Therefore, an effectiveness test of the periodic table of the ladder media was conducted to improve the learning outcomes of students at SMKN 1 BP BR on the topic of periodic table of elements. This research is a pre-experimental study aimed at assessing the effectiveness of media usage using data analysis techniques through pretest-posttest assessments. The population in this study is the students of class X TBSM SMKN 1 BP BR. The research instrument is a learning outcomes test consisting of 25 multiple-choice questions that have been pilot tested. The data analysis techniques used are the t-test to determine differences in learning outcomes and the N-Gain test to determine the improvement in students' understanding. The results of the study show that there are differences and improvements in students' learning outcomes. This is evidenced by the average posttest score of 86.67. The improvement in learning outcomes is also supported by hypothesis testing conducted with the t-test, obtaining a t-value (3.45) > t-table (1.21). Another supporting evidence is the average N-Gain test score of 0.75 with a high category. Thus, it can be concluded that the use of the periodic table of the ladder media is effective in improving students' learning outcomes with a high category. This media is suitable for chemistry learning that is symbolic, as it will be more engaging and challenging through direct student involvement in the learning process.

The use of documentary video learning media can have a positive impact on the learning process, especially the understanding of complex concepts and their application in everyday life. Documentary videos can provide a deeper perspective and insight into real life, so it can be a window or tool to better see and understand real life. In this study, documentary videos have been evaluated in the context of Social Studies learning at the junior high school level. The literature review method was used to analyze various aspects of the use of documentary video learning media, including its impact on concept understanding and application in daily life. The results of this literature review provide an in-depth understanding of the factors that support the effectiveness of documentary video learning media, such as good design, content relevance, and instructional support. However, it also identifies some constraints, including the limited accessibility of technology and the need for teacher support in effective implementation. Thus, the findings from this study provide a strong basis for recommending the implementation of documentary video learning media in social studies learning in junior high schools. The practical implications can provide guidance for the development of more interesting and effective learning materials, by utilizing the potential of documentary videos as innovative and relevant learning aids.

The use of documentary video learning media can have a positive impact on the learning process, especially the understanding of complex concepts and their application in everyday life. Documentary videos can provide a deeper perspective and insight into real life, so it can be a window or tool to better see and understand real life. In this study, documentary videos have been evaluated in the context of Social Studies learning at the junior high school level. The literature review method was used to analyze various aspects of the use of documentary video learning media, including its impact on concept understanding and application in daily life. The results of this literature review provide an in-depth understanding of the factors that support the effectiveness of documentary video learning media, such as good design, content relevance, and instructional support. However, it also identifies some constraints, including the limited accessibility of technology and the need for teacher support in effective implementation. Thus, the findings from this study provide a strong basis for recommending the implementation of documentary video learning media in social studies learning in junior high schools. The practical implications can provide guidance for the development of more interesting and effective learning materials, by utilizing the potential of documentary videos as innovative and relevant learning aids.