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Technical facilities are an element that can support educational and learning activities, especially for professional students in the fields of technology and information. Computational thinking is also one of the supportive skills that every student must have. This is consistent with the preliminary research conducted by the researchers. The teacher said that when students learned basic programming materials, they found it difficult and slowed down because of the limited media they used and the non-optimal methods. This research is aimed to determine the effect of unplugged media based on team assisted individualization on the computational thinking skills of vocational high school students in basic programming subjects. The method used in this research is Quasi-experiment using pretest and posttest control group design. The results of the survey are as follows. 1) Learning media was declared available by media professionals at a rate of 94.23%, including the "very good" category. (2) The designed learning media can improve students' mathematical thinking skills with an average profit value of 0.49, and the standard of effectiveness is "medium". (3) Student response to the use of learning media shows a 97.87% percentage value in the "Very Good" category.

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