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Cecil Hiltrimartin

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Author-ID : 282124

Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mathematics Physics Public Health Social Sciences Other

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The effect of PMRI assisted by augmented reality on circle for students’ problem-solving ability Wulandari, Trisna; Susanti, Ely; Hiltrimartin, Cecil
Jurnal Gantang Vol 10 No 2 (2025): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/7mjbm154

Mathematical problem-solving ability among students remains low in conventional learning environments. The integration of Augmented Reality (AR) into the Indonesian Realistic Mathematics Education (PMRI) approach facilitates visualization of abstract concepts and promotes contextual learning. This study analyzes the effect of PMRI-based circle learning assisted by AR on students' problem-solving abilities. A quantitative approach was employed using a One Group Pretest pretest-posttest design with 35 eleventh-grade students from SMA Srijaya Negara Palembang. Data were collected through a mathematical problem-solving test based on Polya's four stages: understanding the problem, devising a plan, carrying out the plan, and looking back, administered before and after the intervention. The Shapiro–Wilk test indicated that the data were normally distributed (pretest = 0.084; posttest = 0.309, both > 0.05). Paired sample t-test analysis revealed a pretest mean score of 19.37 and a posttest mean score of 66.51, with a mean difference of 47.14. The t-test result (t = -23.053, Sig. (2-tailed) < 0.001) indicated a significant difference between pretest and posttest scores. These findings demonstrate that the PMRI-based learning design assisted by AR is effective in improving students' problem-solving abilities through contextual learning experiences and interactive visualization. The results suggest that integrating PMRI with Augmented Reality in circle learning represents an effective instructional innovation for enhancing students' problem-solving abilities.

KECEPAN TUNGKUS SEBAGAI KONTEKS PEMBELAJARAN BERBASIS PEMECAHAN MASALAH PADA MATERI ARITMATIKA SOSIAL Desvitasari, Tria; Hiltrimartin, Cecil; somakim, Somakim
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 14, No 4 (2025)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v14i4.12506

Aritmatika sosial adalah salah satu materi yang cukup urgent dan bermanfaat untuk kehidupan siswa itu sendiri, namun siswa terkendala dalam memahami soal-soal cerita kontektual, diantaranya siswa masih bertanya maksud dari soal cerita tersebut, dan siswa belum secara sistematis dalam melakukan pemecahan masalah tersebut. Oleh karena itu, guru harus dapat menyusun pembelajaran yang menarik dan dapat menggali lebih dalam kemampuan siswa dalam memecahkan suatu persoalan, yaitu menerapkan pembelajaran berbasis pemecahan masalah dengan menggunakan konteks makanan tradisional Muba “Kecepan Tungkus”. Penelitian ini bertujuan untuk menghasilkan lintasan belajar dan meningkatkan kemampuan pemecahan masalah siswa dengan menggunakan konteks makanan tradisional MUBA “Kecepan Tungkus”. Penelitian ini terdiri atas 4 (empat) aktivitas, yaitu: (1) aktivitas merancang produk yang berkaitan dengan harga beli; (2) aktivitas membuat produk yang berkaitan dengan harga jual; (3) aktivitas menjual produk yang berkaitan dengan untung/rugi; (4) aktivitas penyelesaian soal-soal pemecahan masalah. Metode yang digunakan dalampenelitian ini, yaitu design research tipe validation studies, terdiri dari 3 tahapan, yaitu preparation and design, design experiment dan retrospective analysis. Teknik pengumpulan data pada penelitian ini menggunakan pengamatan (observasi), wawancara, lembar aktivitas dan pretest/posttest. Hasil dari penelitian ini berupa lintasan belajar yang rancang untuk memberikan pemahaman konsep yang mendalam bagi siswa serta menjadi solusi dalam meningkatkan kemampuan pemecahan masalah, khususnya pada materi aritmatika sosial.

Spatial Literacy and Error Patterns in Elementary 3D Geometry: Foundations for Local Instructional Theory Octaria, Dina; Zulkardi, Zulkardi; Putri, Ratu Ilma Indra; Hiltrimartin, Cecil
Edumatica : Jurnal Pendidikan Matematika Vol 16 No 1 (2026): Edumatica: Jurnal Pendidikan matematika (April 2026)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/edumatica.v16i1.48212

Spatial literacy is a vital math skill for students to learn during their three-dimensional geometry education. The two skills remain essential, yet most fifth-grade students struggle with spatial tasks. This challenge restricts their conceptual growth. The research examines fifth-grade students’ spatial literacy abilities and their error patterns to provide evidence for developing a Local Instructional Theory (LIT) on three-dimensional geometry. The research included 118 fifth-grade students (aged 10-11 years) from two public primary schools in Palembang who participated in a descriptive quantitative study with error analysis. The research data came from student performance on the spatial literacy diagnostic test and their error analysis records. The researchers applied descriptive statistics to determine average scores and establish performance levels for visualisation, reasoning, and communication skills. The researchers categorised student mistakes into four categories: procedural errors, conceptual errors, representational errors and communicative errors. The students produced results indicating significant differences in their performances. Students failed to perform basic procedural tasks, including spatial form comparison and application of formal notation, while they struggled with complex visualisation and the development of multiple-step spatial thinking and conceptual understanding. Students’ learning difficulties manifest as systematic errors, indicating that their challenges stem from complex, interconnected issues rather than random mistakes. The research results demonstrate that students need instruction which teaches them to develop their visualisation abilities, their reasoning skills, and explanatory competencies. The designs serve as an essential tool for uniting procedural fluency with conceptual understanding, leading to better spatial literacy in early geometry education.

Students' Perceptions of Augmented Reality Based Student Worksheets on Circle Geometry Wulandari, Trisna; Susanti, Ely; Hiltrimartin, Cecil
Jurnal VARIDIKA Volume 38 No 2, August 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/varidika.v38i2.13592

This study aimed to describe students’ perceptions of the use of Augmented Reality (AR)-based student worksheets in learning circle geometry. A descriptive quantitative approach was employed. The participants were 30 eleventh-grade students from a senior high school in Palembang selected using convenience sampling, as they were directly involved in learning activities using AR-based worksheets. Data were collected through a 20-item Likert-scale questionnaire covering cognitive, affective, and psychomotor/social aspects. Students’ responses were analyzed descriptively by calculating the percentage of response frequencies for each Likert-scale category and aspect to identify overall perception trends. The results indicated that most students expressed positive perceptions of AR-based student worksheets, particularly in supporting conceptual understanding, learning engagement, and classroom interaction. However, a considerable proportion of neutral responses was also observed, especially in the affective aspect, indicating variation in students’ emotional engagement. Overall, AR-based student worksheets were perceived as a supportive learning medium for circle geometry learning within the context of this study.

Studi Komparatif Topik Tabung dalam Buku Teks Singapura dan Indonesia: Implikasi untuk Literasi Matematika Sanita, Eka; Susanti, Ely; Hiltrimartin, Cecil
Jurnal Pendidikan Matematika dan Sains Vol. 14 No. 1 (2026): February 2026
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpms.v14i1.89010

Penelitian ini bertujuan membandingkan tiga buku teks matematika-Kurikulum Merdeka, Kurikulum Tingkat Satuan Pendidikan (KTSP), dan The Singapore O-Level Curriculum-pada materi tabung dalam konteks literasi matematika. Metode yang digunakan adalah deskriptif-komparatif dengan analisis konten terhadap struktur materi, fakta, konsep, prinsip, distribusi soal berdasarkan taksonomi Bloom, soal pemecahan masalah, dan kesesuaian soal dengan framework PISA. Hasil penelitian menunjukkan bahwa buku teks kurikulum merdeka lebih menekankan konsep dasar namun miskin konteks dan variasi soal, buku teks KTSP mulai mengintegrasikan konteks nyata dan prinsip skalabilitas meski visualisasi terbatas, sedangkan buku teks The Singapore O-Level Curriculum unggul dalam visualisasi, variasi soal kognitif tinggi, serta proporsi soal pemecahan masalah dan konteks PISA yang seimbang. Penelitian ini menegaskan bahwa buku teks dengan materi visual, kontekstual, dan soal beragam lebih efektif meningkatkan literasi matematika siswa. Implikasinya, pengembangan buku teks perlu mengacu pada kerangka literasi matematika internasional agar pembelajaran matematika di Indonesia lebih relevan dan kompetitif.

Cultural Responsive Teaching: Increasing Student PPKn Learning Outcomes Latipia Damayanti; Hiltrimartin, Cecil; Wati, Destiana
Journal of Basic Education Research Vol 4 No 3 (2023): September
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jber.v4i3.723

Purpose of the study: This research will explore how a culturally responsive teaching approach can improve students' cognitive learning outcomes. This classroom action research aims to enhance students' cognitive learning outcomes using a culturally responsive teaching approach. Methodology: This research was carried out in class III in Civics subjects. The type of research method used by researchers was Classroom Action Research. The population and sample used in this study were all class III students at Elementary School 07 Palembang. Data collection techniques used by researchers are observation, field notes, and tests. Data analysis techniques used are qualitative analysis and quantitative analysis. Main Findings: The results of this research are that the application of the culturally responsive teaching approach to Civics subjects in class III can improve student learning outcomes with results in cycle I as much as 57.6%, cycle II as much as 73%, and cycle III as much as 88.4% and post-test 92%. .3% with a student completion target of 85%. Novelty/Originality of this study: Researchers used a culturally responsive teaching approach to improve students' cognitive learning outcomes in grade III Elementary School Civics subjects.

Application of The Make A Match Model to Improve The Learning Outcomes of Class II Students in Elementary Schools Mutia Qodra, Laili; Hiltrimartin, Cecil; Wati, Destiana
Journal of Basic Education Research Vol 4 No 3 (2023): September
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jber.v4i3.724

Purpose of the study: This research aims to improve the learning outcomes of class II students through the Make a Match learning model at State Elementary School 07 Palembang. This type of research is classroom action research carried out over two cycles. The subjects of this research were 30 students. Methodology: The techniques used for data collection are tests, observation, and documentation. The data analysis technique used is qualitative and quantitative data analysis. The research results show that learning outcomes using the Make a Match type cooperative learning model have increased in Indonesian language subjects. Main Findings: This can be seen from before the action. The average student score was only 61.83, with a completion percentage of only 60%. In cycle I, the average student score was 68, 47, with a completion percentage reaching 73%. In cycle II, the average student score was 76.30, and the completion rate reached 83%. Novelty/Originality of this study: The latest research applies the make-a-match learning model to Indonesian language subjects. Thus, using the make-a-match type cooperative learning model can improve the learning outcomes of class 2 students in Indonesian language subjects.

Improving Student Learning Outcomes Using Crossword Based Worksheet In Primary Schools Oktavia, Mitra; Hiltrimartin, Cecil; Wati, Destieana
Journal of Basic Education Research Vol 4 No 3 (2023): September
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jber.v4i3.725

Purpose of the study: This research aims to improve student learning outcomes by using TTS-based LKPD in the learning process. Methodology: This research was carried out in class IV.B of Elementary School 7 Palembang in the science and sciences subject. The research method used is classroom action research. The population and sample in this study were all class IV students at SDN 07 Palembang. The data collection techniques used by researchers are observation and tests. The data analysis technique used is qualitative analysis and quantitative analysis. Main Findings: The results of research using TTS-based LKPD in science and science subjects in class IV can improve student learning outcomes with results in cycle I as much as 45.4%, cycle II as much as 81.8%, and cycle III as much as 88.4% as well as post-test 95.4% with a student completion target of 85%. Novelty/Originality of this study: TTS-based LKPD can improve student learning outcomes in class IV science and science subjects at Elementary School 7 Palembang.

Needs Analysis of Interactive Multimedia Development for Teaching Number Patterns in Fifth Grade Elementary School Amelia, Tasya Faricha; Hiltrimartin, Cecil; Somakim, Somakim
Tekno - Pedagogi : Jurnal Teknologi Pendidikan Vol. 16 No. 3 (2026): Tekno-Pedagogi
Publisher : Program Magister Teknologi Pendidikan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/teknopedagogi.v16i3.55092

Despite the growing use of interactive multimedia and game-based learning in mathematics education, educational escape room games specifically designed for teaching number patterns in elementary schools remain limited and are rarely developed based on comprehensive needs analyses. This study aimed to analyze the need for developing interactive multimedia in the form of an educational escape room game for fifth-grade elementary school students. A descriptive quantitative survey was conducted involving 55 fifth-grade students and 10 teachers at SD Negeri 19 Talang Kelapa. Data were collected using validated Likert-scale questionnaires covering four aspects: teacher needs, student characteristics, learning media, and instructional design. The findings revealed that teacher needs were categorized as needed (73.2%), student characteristics as highly needed (82.4%), learning media as highly needed (87.1%), and instructional design as needed (61.7%). The learning media aspect showed the highest level of need, indicating the importance of engaging, interactive, and accessible digital resources to support mathematics learning. The proposed innovation emerging from this study is the integration of educational escape room game elements into interactive multimedia for number pattern instruction. These findings provide empirical evidence and practical guidance for developing interactive multimedia that aligns with students’ learning characteristics, teachers’ instructional needs, and effective instructional design principles. Future research is recommended to develop, implement, and evaluate the effectiveness of the proposed multimedia in improving students’ mathematical understanding and problem-solving skills.

Co-Authors Adeulliah, Novie Agustarina, Mitta Amelia, Tasya Faricha Araiku, Jeri Aziza, Difa Azka, Dea Alvionita Azka, Dea Alvionita Basa, Zahra Alhumairah Darmawijoyo, Darmawijoyo Desvitasari, Tria Dina Octaria Dina Octaria Diva, Karen Dwi Budi Santoso Ely Susanti Ely Susanti, Ely Erpina, Reppy Ety Septiati Farida Aryani Fauzie, Fauzie Firaisti, Sicilia Freti Lesiana Giani Giani Hadi Nasbey Hapizah Ida Sriyanti Indaryanti Indaryanti Ismet Ismet, Ismet Komariyatiningsih, Novi Kurniadi, Elika Latipia Damayanti Maharani, Annisa Dwi Maharani, Levana Manulang, Lilis Sri Jayanti Meilinda Meilinda Meriza, Dyna Meryansumayeka Meryansumayeka Muhamad Ikhsan Sahal Guntur Mulyono, Budi Mutia Qodra, Laili N. Fahriza Fuadiah Najmi Wahyuni Norma Setiawati, Norma Novi Komariyatiningsih Nurul Ain Safura Nurwijayanti Nyimas Aisyah Nyimas Aisyah Okta, Miko Oktaria, Pelinsia Oktavia, Mitra Oktaviani, Sherly Pratiwi, Weni Dwi Putri, Amelia Defrianti Putri, Debi Suci Rahma Amsar Napenty Rahma Siska Utari Ramandani, M. Rizky Ratu Ilma Indra Putri Riduan, Lindawaty Sanita, Eka Sari, Arika Sari, Nopi Nopa Sary Silvhiany Scristia Scristia, Scristia Somakim, Somakim Sri Sumarni Sukmaningtyas, Novika Susanty, Ely Utami, Putri Indah Wati, Destiana Wati, Destieana Widioktafarani, Hanny Wulandari, Trisna Yesi Arianti, Yesi Yusuf Hartono Zuli Nuraeni Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi

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