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Designing Mode Learning based PMRI-STEM Approach using the Coffee Grinder Context for Culinary Arts Vocational High School Students Susanti, Novi; Putri, Ratu Ilma Indra; Aisyah, Nyimas; Hartono, Hartono
Journal of Honai Math Vol. 9 No. 2 (2026): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v9i2.1289

Abstract

Learning mode as one of the measures of central tendency is often limited to identifying the value that appears most frequently without understanding its meaning in real-world situations. Students tend to understand mode procedurally but experience difficulties in interpreting it as a representation of majority preference in contextual decision-making. Therefore, this study aims to design mode learning based on the PMRI-STEM approach using the context of coffee grinder use to support students’ conceptual understanding of mode in Culinary Arts Vocational High School. This study employed a design research approach consisting of preliminary design, teaching experiment, and retrospective analysis. The participants were 25 students in Grade 10 Culinary Arts Vocational High School. Data were collected through classroom observations, students’ worksheets, interviews, and learning documentation, then analyzed descriptively to examine students’ learning processes during PMRI-STEM learning activities. The study resulted in a learning trajectory consisting of activities involving adjusting grinder machine settings, grinding coffee beans with different grind sizes, observing brewing characteristics, organizing preference data into frequency tables, and determining the mode as the most frequently chosen grind size. The findings showed that students were able to identify the mode correctly and interpret it as a representation of majority customer preference used for determining standard coffee shop menu settings. Students also developed contextual reasoning by connecting grinder settings, brewing results, data representation, and statistical decision-making. These findings indicate that PMRI-STEM learning using the context of coffee grinders can support students’ understanding of mode and contextual statistical literacy in vocational mathematics learning.
Co-Authors Adriani, Novita Dwi Agusti, Sarah Alwizra, Alwizra Amalia Navi’ah, Risyda Amelia, Ayu Ananda, Marsha Radhia Andias, Kukuh Ani Purwati, Ani Aristya, Irma Sendy Asmerat, Desi Awaliah, Nisa Azmi, M. Haikal Baene, Feberlina Bambang Budi Raharjo Barzakh, Imam Budio, Sesra Choirudin, Choirudin Dadan Rohdiana Daulay, Rangga Muriansyah Delima Kiska, Nurul Duano Sapta Nusantara Efi Satriana Silalahi Ely Susanti Erpansyah ERVIANA, RIA Evi Damayanti, Evi Faiz, Muhammad Nabil Farooq , Syed Muhammad Yousaf Fauzan, Fajar Akmal Feriza, Firman Gusmiarni, Widya Hamdani Abdi Hanipah, Anida Hartono Hartono Hasibuan, Namiroh Falah Herlina, Tina Ilawati, Sri iman, Khairul Indah Widyaningrum Indah Widyaningrum Indrayati, Helni Iswandi Iswandi Jesi Alexander Alim Kausari, Dini Khoni'ah, Nurul Kiska, Nurul Delima Kornelia Ringgi Kuwa, Maria Kristin, Julia Lasman Azis lazim, lazim Leni Marlina Lestari, Dwita Lestari, Reza Meiyana Sinaga N, Yennizar Naufal, Ahmad Fitra Neni Lismareni, Neni Novitasari, Nadhea Nur R, Alyssa Nur Rochmah, Alyssa Nur Yanti, Nur Nurzanah, Fitri Nyimas Aisyah Octavia, Rizka Pakpahan, Asima Lamtiar Pratiwi, Tika Ayu Putri, Nurmila RAHMI, ELVI Ramadhanu, Suhada Rambing, Denilay Richardo Ratu Ilma Indra Putri Reni Septrisia Rizki, Nopia Rohani, Tri Rosialani, Resa Sari, Sindy Mustika Sholiyah, Sholiyah Sigit Nugroho Simarni Siti Inganah Slamet Riyadi Sukamto Satoto Sunjaya, Dea Tarigan, David Brando Pratama Telaumbanua, Fitriana Tyas, Debora Korining Umi Kalsum Wulandary Pane, Herviza Yani, Sari Yusnanda, Febri Zakwan, M. Hadin Zulkardi Zulkardi