Practical Teaching Materials for Transformational Geometry Based on Visuals Ethnomathematics for SMA Toraja Class IX

Abstract

The objective of this research and development is twofold: firstly, to analyse the level of validity of teaching materials for transformation geometry based on visual ethnomathematics of Toraja carvings in Senior High School; and secondly, to analyse the level of practicality of teaching materials for transformation geometry based on visual ethnomathematics of Toraja carvings in Senior High School. The subjects in this development research consisted of three validators: linguists, material experts and media experts, as well as three mathematics teachers and 31 students at SMAN I Tana Toraja. Data collection was conducted through observation, interview sheets, teaching material validation sheets, teacher response questionnaires and student responses. Data analysis techniques were employed using both descriptive qualitative and descriptive quantitative approaches. The results of the qualitative descriptive data analysis yielded a number of suggestions for improvement from expert validation, teachers and students. The quantitative descriptive analysis revealed that the validation results from experts were of a very high standard, with a value of 85.56 in terms of language, 85.16 in terms of material, and 81.17 in terms of learning media. Moreover, the practicality of the developed teaching materials was rated as "very practical" by both teachers and students, with scores of 88.54 and 85.06, respectively.