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Students consider that spatial geometry is tough, they require equipped mastery of concepts and visualized 2D object. This study is addressed to develop and evaluate EUCLIDA card integrated with AR using 4D model. The EUCLIDA card was claimed to satisfy the valid standard, because it achieves a percentage of 90%, from the appraisal data of two specialists and one practitioner. Moreover, EUCLIDA card also fulfills the utility aspects, because it obtained a percentage of 93% based on the outcome of learning activities observed and gained 97% from the student feedback survey on operating EUCLIDA card. It can be concluded that the EUCLIDA card is considered valid and useful.
Putri et al. (Mon,) studied this question.