BOOKLET BERBASIS TUGAS PENGAJUAN SOAL OPEN ENDED KOSAKATA MATEMATIS BUDAYA TAK KASAT MATA SUKU DAYAK BIDAYUH-SOMU DESA SEBUDUH KECAMATAN KEMBAYAN

This research aimed to develop a booklet based on Tugas Pengajuan Soal Open Ended
(TPSOE) Mathematics Vocabulary from the Intangible Cultural of Dayak Bidayuhsomu Desa Sebuduh Kecamatan Kembayan as learning source in the material of
algebra at 7th grade of Junior High School. The use of TPSOE booklet is an application
of ethnomathematics at school. This was qualitative research with descriptive method.
The subject in this research were mathematic teachers of 7th grade of Junior High
School, while the object was material of algebra based on Kompetensi Dasar 3.6 from
Kurikulum 2013 syllabus. The instrument used is validation questionnaire which refers
to BSNP consist of content validity, presentation, language, and graphic components.
The TPSOE booklet validated by three lectures and a teacher. The result revealed that
the TPSOE booklet was valid to be used as a learning source. All of the components got
a score which categorized as very good, content validity component got 95,19%,,
presentation component got 96,25%, language component got 97,50%, and graphic
component got 97,79%.
Keyword: Algebra, Booklet, Ethnomathematics, Mathematics Vocabulary, TPSOE.