The purpose of this study was to analyze the scope related to the subject of problem-solving skills based on multiple representation in 2016 – 2020 with 20 documents through bibliometric analysis. The research method used was a literature study through all the articles analyzed in this study. The articles were taken from the Scopus database with sampling in 2003 – 2020, resulting in 29 scientific work data exported in *.ris (RIS) and *CVS formats. Then, those data were processed using VOSviewer and Microsoft Excel. The results of publications in the last five years have increased. Indonesia is the dominant country in publicizing papers about this topic. Institutions from Germany managed to publish most of the documents about multi representation. Meanwhile, Poland is the origin country of the authors with most publications. The visualization of research trends on multi representation resulted in four main clusters: (1) multi representation related to students, representation, and learning processes (2) multi representation as a class (3) multi representation related to the problem (4) multi representation as a model and process. Meanwhile, Indonesian researchers are very active in contributing to this topic, in line with the number of publications by country, namely Indonesia.

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The aims of the study were to determine students' abilities about Technological Content Knowledge (TCK) assisted by C-Map Tools on static electricity material. The method in this research uses assignments and filling out questionnaires. The sample used in this research is class XII IPA 1. Data were collected by average score of student response questionnaire and average of students six group for rubric assessment C-Map Tools by Suprapto, 2018. Data analysis using descriptive analysis with the average score of the student response questionnaire and the average score rubric assessment C-Map Tools. Students' abilities regarding TCK were obtained from the results of student response questionnaires which contained 3 aspects, namely display, material, and advantage. The average in these three aspects is 77.4%. Students’ skill to make concept mapping in the topic of static electricity through C-Map Tools application achieved with a 75.08% of 100% with a good category. Students are able to connect concepts to one another by using the C-Map Tools application. There is also a limitation in this research, that many students did not include focus questions on their c-map tools.