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Development of the aluminum casting module was aimed at supporting practical learning at Muhammadiyah 1 Bantul Vocational School and determining students' understanding and competence of the module. The module was developed using the research and development method. The data were obtained using questionnaires and documentation, as well as using pre-test and post-test exam which then the result analyzed quantitatively descriptively. The result of the development is an aluminum metal casting module that consists of 157 pages and consists of 13 parts. The results of the aluminum metal casting module validation according to material experts is in a feasibility level of 85% which in the very good category. According to media experts, the feasibility level is 89.13% which in the very good category. According to the supervisor, the feasibility level is 83.75% which in the very good category. The feasibility level in accordance with the student response is 78.59% which in the very good category. The results of the pre-test is 33% while the results of the post-test after module implemented is of 76.75% which indicate the modules are suitable for practical learning because increase students' understanding in aluminum casting. [ABSTRACT FROM AUTHOR]

This study aims to develop a plate pattern and determine its feasibility. The pattern used in casting is generally made of wood. Patterns made of wood have drawbacks in that their service life is not too long. The patterns is developed from aluminum so that the patterns can be used repeatedly and have a long service life. The plate pattern was developed using the R&D method with the ADDIE model. Data was collected by a questionnaire and then analyzed descriptively quantitatively. The subject of this research is plate pattern. The objects of this research are media and material experts, 4 teaching teachers, and 20 vocational school students. The pattern developed is a plate pattern in the shape of cubes, blocks, cylindrical and round. The result shows that the feasibility assessment according to media experts and material experts is 91.81% and it is categorized as very feasible. The feasibility assessment according to the teacher is 91.5% so it is categorized as very feasible. Eligibility assessment from students is obtained 82.91% so it was categorized as very eligible. The casting product has flat and smooth surface, and also has no defect caused by shrinkage and shifting. [ABSTRACT FROM AUTHOR]