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Ely Susanti

Universitas Sriwijaya

Author-ID : 2653819

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Development of STEM-Based E-LKPD on Pythagorean Theorem Material on Students' Problem-Solving Ability Oktaviani Silaen, Elza; Susanti, Ely; Aisyah, Nyimas
Kreano, Jurnal Matematika Kreatif-Inovatif Vol. 16 No. 1 (2025): Kreano, Jurnal Matematika Kreatif-Inovatif
Publisher : UNNES JOURNAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v16i1.16468

Problem-solving ability is a critical component of mathematics education, particularly in understanding Pythagorean theorem concepts. However, current instructional practices often lack integration of STEM approaches and interactive digital tools that support the development of this ability. This study aimed to develop a valid, practical, and potentially effective STEM-based Electronic Student Worksheet (E-LKPD) to enhance students’ problem-solving ability. The research employed the ADDIE development model (Analyze, Design, Development, Implementation, and Evaluation) and involved expert validation, practicality testing, and effectiveness assessment with eighth-grade students in a public junior high school following the Merdeka Curriculum. Data were collected through expert validation sheets, student practicality questionnaires, and problem-solving ability tests, then analyzed using descriptive statistics. Results showed that the E-LKPD met validity criteria with an average score of 4.20, reached a practicality level of 85.33%, and demonstrated a positive potential effect, with 57.71% of students achieving a good performance in problem-solving ability. These findings indicate that the developed STEM-based E-LKPD aligns with pedagogical and technological requirements and is suitable for implementation in mathematics learning contexts. This study contributes to digital mathematics pedagogy by offering a contextual STEM-based learning tool supported by interactive technology, addressing current needs in technology-integrated instruction. Abstrak Kemampuan pemecahan masalah merupakan komponen penting dalam pembelajaran matematika, khususnya pada pemahaman konsep Teorema Pythagoras. Namun, praktik pembelajaran saat ini masih kurang dalam mengintegrasikan pendekatan STEM dan alat digital interaktif yang mendukung pengembangan kemampuan ini. Penelitian ini bertujuan untuk mengembangkan Lembar Kerja Peserta Didik Elektronik (E-LKPD) berbasis STEM yang valid, praktis, dan berpotensi efektif untuk meningkatkan kemampuan pemecahan masalah siswa. Penelitian menggunakan model pengembangan ADDIE (Analyze, Design, Development, Implementation, dan Evaluation) serta melibatkan validasi ahli, uji kepraktisan, dan uji efektivitas terhadap siswa kelas VIII di salah satu SMP negeri yang menerapkan Kurikulum Merdeka. Data dikumpulkan melalui lembar validasi ahli, angket kepraktisan, dan tes kemampuan pemecahan masalah, kemudian dianalisis secara deskriptif. Hasil menunjukkan bahwa E-LKPD memenuhi kriteria valid dengan skor rata-rata 4,20, tingkat kepraktisan sebesar 85,33%, dan menunjukkan potensi efektivitas, dengan 57,71% siswa mencapai kategori baik dalam kemampuan pemecahan masalah. Temuan ini menunjukkan bahwa E-LKPD berbasis STEM yang dikembangkan telah sesuai dengan kebutuhan pedagogis dan teknologi, serta layak diterapkan dalam pembelajaran matematika. Penelitian ini berkontribusi terhadap pedagogi digital matematika melalui penyediaan alat pembelajaran kontekstual yang mengintegrasikan prinsip STEM dan teknologi interaktif.

Desain Pembelajaran Materi Peluang Berbasis PMRI Menggunakan Konteks Wisata Lokal Fitriyana, Nur; Zulkardi, Zulkardi; Putri, Ratu ilma Indah; Susanti, Ely; Mulyono, Budi
Jurnal Pendidikan Matematika : Judika Education Vol. 8 No. 3 (2025): Jurnal Pendidikan Matematika:Judika Education
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/judika.v8i3.15075

This study aims to develop a learning design based on the Indonesian Realistic Mathematics Education (PMRI) approach for teaching probability using the local context of Belitar Seberang Waterfall, Rejang Lebong Regency. The method employed is design research of the validation study type, which consists of three phases: preparing for the experiment, teaching experiment, and retrospective analysis. The teaching experiment was carried out in two stages: a pilot experiment involving six students and the main teaching experiment involving 23 eighth-grade students. Data collection techniques included Student Activity Sheets (LAS), observation, interviews, and documentation. The results show that 80% of students demonstrated a comprehensive understanding of probability concepts and experienced improved learning outcomes after participating in the PMRI-based learning. Revisions to the LAS during the pilot experiment had a positive impact on students’ conceptual understanding. Overall, the PMRI approach, grounded in a local context, proved effective in enhancing student engagement and understanding of mathematical concepts. Keywords: Learning Design, Hypothetical Learning Trajectory (HLT), PMRI, Probability, Tourism Context

Developing STEM-Based Digital Worksheet to Encourage Students' Problem-Solving Skills Susanti, Ely; Aisyah, Nyimas; Silaen, Elza Oktaviani
Indiktika : Jurnal Inovasi Pendidikan Matematika Vol. 7 No. 2 (2025): Indiktika : Jurnal Inovasi Pendidikan Matematika
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/indiktika.v7i2.16759

Mathematics education in the 21st century, a field increasingly shaped by rapid technological advancement and global demands for critical thinking, necessitates the use of contextual, technology-enhanced learning media that promote higher-order thinking skills, particularly in the area of problem solving. Addressing this need, the present study focused on developing a STEM-based digital worksheet, a technology-integrated instructional tool aimed at enhancing students’ mathematical problem-solving skills within the topic of the Pythagorean Theorem. Adopting a Research and Development (R&D) framework, specifically the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation), the study involved a series of methodical phases designed to ensure both pedagogical soundness and technological relevance. Data collection involved conducting interviews and observations, analyzing relevant documents, validating content through expert review, and administering both practicality questionnaires and performance-based assessments grounded in Polya’s problem-solving rubric. Validation by three subject-matter experts, serving as evaluators of content quality and instructional alignment, resulted in an average score of 83.68%, denoting high validity. Practicality, assessed through one-on-one and small-group trials, achieved a mean score of 82.33%, reflecting strong user acceptance and ease of implementation. A field test with 30 students revealed an average problem-solving score of 75%, with notable strengths in identifying and understanding the problem, and relative weaknesses in the final stage of reviewing solutions. These findings, while preliminary, suggest that developing and implementing STEM-based digital worksheets can serve as a promising approach to fostering mathematical problem solving by embedding learning in contextual, interactive, and technologically enriched environments.

Ratios in Agriculture: A Rice Fertilization Context for Ratio Learning Trajectory Sari, Filian Yunita; Zulkardi; Putri, Ratu Ilma Indra; Susanti, Ely
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp509-526

This study aims to develop a learning trajectory for ratio material using rice fertilization context. This study employed validation studies within a design research framework involving seventh-grade students at a junior high school in Belitang. Data was collected through student activity sheets, observations, and interviews. Design research consists of three stages: experimental preparation, experimental design, and retrospective analysis. The findings indicate that the learning trajectory for ratio material in the rice fertilization context includes identifying patterns and relationships between two quantities, determining the simplest unit ratios, representing ratios using ratios table, and solving real-world ratio-related problems. These results confirm that the designed learning trajectory serves as a practical reference for teachers in designing ratio learning that is meaningful, applicable, and relevant to the life experiences of students in agricultural areas, while supporting sustainable agriculture.

Comparative Analysis of Presentation of Set Material in Indonesian and Fijian Mathematics Textbooks Jesika Dwi Putriani; Susanti, Ely; Martin, Cecil Hiltri
Journal of Instructional Mathematics Vol. 6 No. 1 (2025): Contemporary Perspectives on Mathematics Teaching, Learning, and Technology
Publisher : Pendidikan Matematika STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/jim.v6i1.2385

Textbooks are essential learning tools that significantly influence students' comprehension of mathematical concepts, including the foundational topic of sets. This study aimed to analyze how set materials are presented in Indonesian and Fijian mathematics textbooks, focusing on facts, concepts, principles and errors, cognitive levels, problem-solving, and alignment with the Programme for International Student Assessment (PISA) framework. Using a qualitative descriptive-comparative method, the study examined three textbooks: Indonesia’s KTSP (2011), Merdeka Curriculum (2022), and a Fijian mathematics book. Data were collected through document analysis. The findings revealed distinct presentation approaches: KTSP emphasizes symbols and formal definitions; the Merdeka Curriculum uses real-life contexts; and the Fijian book adopts a simple, visual style. Regarding cognitive levels, KTSP questions are mostly C1–C2, Merdeka Curriculum texkbook includes C4–C5, while Fiji remains at C1–C3. However, all three lack sufficient alignment with PISA question types. In terms of problem-solving, KTSP tends to be procedural, the Merdeka Curriculum is more reflective, and Fiji lacks problem-solving tasks. These findings highlight the need for textbooks to include more contextual and higher-order thinking problems to support students’ mathematical literacy and deeper understanding.

Learning Trajectory Flat Building Material Using Batik Besemah Context for Elementary School Students Susanti, Novi; Zulkardi, Zulkardi; Indra Putri, Ratu Ilma; Susanti, Ely; Nusantara, Duano Sapta
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 1 (2024)
Publisher : Universitas Ma'arif Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v8i1.4073

Students experience difficulties in understanding the properties of flat shapes because learning is monotonous, so there is a need for innovation in learning flat shape material. This research aims to produce a learning trajectory for flat building materials using the context of besemah batik for elementary school students. This research uses a design research method which consists of three research steps, namely preparing for the experiment, the design experiment, and retrospective analysis. Data collection was carried out by providing student activity sheets and interviews. Data is analyzed by reducing data, presenting data, and making conclusions. The results of the research show that learning the trajectory of flat shapes using the context of besemah batik consists of four activities, namely 1) observe the besemah batik pattern, 2) redraw the besemah batik pattern, 3) writing down the characteristics of flat shapes. based on the pattern image on besemah batik, and 4) write definitions of various flat shapes and represent various flat shapes in the drawing. Based on the research, it can be concluded that the resulting learning trajectory can help students understand flat shape material.

Integrating Google Earth into Scale Learning: A Learning Trajectory Through Rice Field Size Exploration Sari, Filian Yunita; Zulkardi, Zulkardi; Putri, Ratu Ilma Indra; Susanti, Ely
Edumatica : Jurnal Pendidikan Matematika Vol 15 No 2 (2025): Edumatica: Jurnal Pendidikan matematika (Agustus 2025)
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.v15i2.44693

Students' difficulties in understanding the concept of scale, both conceptually and applicative, are caused by learning that is still abstract and has minimal connection to the real context, so it is necessary to present learning that is more meaningful and applicable. This study aimed to produce a learning trajectory for the concept of scale through rice field size exploration using Google Earth. The approach employed was design research of validation studies type, which encompassed three stages: design preparation, design experiment, and retrospective analysis. The study was conducted at State Junior High School 1 Belitang involving two classes, eight students from class VII.3 and thirty-one students from class VII.4. Data was collected through student activity sheets, observations, and interviews, then analyzed qualitatively using descriptive methods with triangulation techniques. The results showed that learning trajectory for the concept of scale starting from measuring images, comparing sizes in images and actual sizes, making model representations through double number lines, discussing the concept of scale and applying scale in real calculations. The study implied the importance of contextual digital media in fostering meaningful and concrete understanding of mathematical concepts.

A local instructional theory for learning the concept of arithmetic sequence through pocah piring game Putri, Dhea Anisah; Zulkardi; Ely Susanti; Meryansumayeka
Jurnal Elemen Vol 11 No 3 (2025): July
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i3.29672

The nth-term formula is an arithmetic sequence subtopic that contributes significantly to explaining the fundamental concept of an arithmetic sequence. This study aimed to design a Local Instructional Theory (LIT) based on Realistic Mathematics Education (RME) to find the nth-term formula in an arithmetic sequence through the Pocah Piring game. This study was conducted on eighth-grade students in Palembang, Indonesia. This study used educational design research with a validation study, starting with a preliminary design, design experiments, and retrospective analysis. The learning trajectory in this study begins with rich circumstances that require mathematical reasoning rather than abstraction or exact definitions. Three structured learning activities integrating the Pocah Piring game were applied to help the students explore the concept of an arithmetic sequence. To effectively teach arithmetic sequences, instruction should progress from concrete representations, such as physical manipulatives and visual patterns that help students recognise sequential structures, to more abstract forms, including symbolic expressions and general formulas. The developed LIT accurately predicted students’ thinking throughout the learning process, supporting their progression toward the intended learning objectives. Teachers are encouraged to use the LIT derived from this study to guide instruction and design alternative learning pathways when teaching arithmetic sequences.

Enhancing critical thinking with realistic mathematics education: Insight from learning styles, thinking habits, and cognitive abilities Retta, Allen Marga; Putri, Ratu Ilma Indra; Zulkardi; Susanti, Ely
Jurnal Elemen Vol 11 No 3 (2025): July
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i3.30013

Although critical thinking is vital in 21st-century learning, mathematics classes often emphasise procedures over reasoning. Few studies have explored how students’ characteristics (learning styles, thinking habits, and cognitive abilities) interact with contextual learning approaches such as Pendidikan Matematika Realistik Indonesia (PMRI). This study aimed to describe the students’ critical thinking using PMRI as a learning approach, specifically by analysing how these abilities vary based on students’ learning styles, thinking habits, and cognitive ability levels. The context of water pH was used to explore the measures of central tendency. Students were observed based on their learning styles, thinking habits, and cognitive abilities. This study used a descriptive qualitative method with 29 eighth-grade students from junior high school in Palembang. Data were collected through tests, questionnaires (learning styles and thinking habits), and the participants’ academic records. The data were analysed using Miles, Huberman, and Saldana’s model, which involves data reduction, presentation, and conclusions. The results show that female students tend to possess “quite critical category”, while male students also show “quite critical category” category when analysed by learning style, but lower in thinking habits and cognitive ability. This implies that teaching should consider students' differences to support the development of critical thinking.

KEMAMPUAN NUMERASI PESERTA DIDIK MELALUI IMPLEMENTASI BLENDED LEARNING PADA MATERI BILANGAN PECAHAN Lestari, Ayu; Hapizah, Hapizah; Mulyono, Budi; Susanti, Ely
Jurnal Pendidikan Matematika (JUPITEK) Vol 5 No 1 (2022): Jurnal Pendidikan Matematika (JUPITEK)
Publisher : Program Studi Pendidikan Matematika FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jupitekvol5iss1pp60-70

This study aims to describe the numeracy skills of students in the matter of fractional arithmetic. This research method is a type of combination research. The research subjects were 31 students of class VIIU1 SMP Muhammadiyah 4 Palembang, but three people were chosen as subjects to be interviewed. The data collection techniques in this study were questionnaires, tests, and interviews. The instrument in this study is the researcher and assisted by questionnaires, numeracy questions, and interview guidelines. The data analysis technique of this research is quantitative and qualitative with the stages of quantitative data analysis. The results showed that the response of students to blended learning was good. The numeracy ability of students after being given blended learning on fractional numbers is still low. This can be seen from the results of the written test which showed that there were only 2 students in the high category, 6 in the medium category, and 23 in the low category. Based on the results of written tests and interviews that have been analyzed based on indicators of numeracy skills, students are able to using various numbers or mathematical symbols related to basic mathematics and able to analyze information displayed in various forms (graphs, tables, charts, diagrams). This can be seen in students who are able to use mathematical concepts and procedures on fractional number material. Most of the students are not able interpret the results of the analysis to predict and make decisions, because students are not used to reinterpreting the results of calculations into the context of the problem

Co-Authors Abul Walid Adi Saputro Aditya, Pandu Agustarina, Mitta Ainun Jariyah Ainun Mardia Aisyah Turidho Allen Marga Retta, Allen Marga Amrina Rosyada Anak Agung Gede Sugianthara Andita, Sintia Angge Sapto Mubharokh Angge Sapto Mubharokh Annisa Oktavia Lestari Araiku, Jeri Arika Sari Ardani Arin, Arin Arsan Shanie Arum Niti Wijayanti Asmaul Husna Astuti, Puji Audina, Chamila Putri Audrilia, Riski Avida Avida Avida Avida, Avida AYU LESTARI Ayu Mentari Bariyah, Leny Belinda Ambarwati Berlian, M Ridho Ratu Cecep Anwar FS Cecil Hiltrimartin Cecil Hiltrimartin Chn, Rafika Riana Choirunisa, Choirunisa Danil C, Fransisco Darmawijoyo, Darmawijoyo Dasaprawira, M Noviarsyah Debi Suci Putri Delfi, Iftina Desi Safitri Desvitasari, Tria Dewi Ananti Wulan Dewi Rawani Dian Fitriana Diki Suryanto Drajat Friansah Duano Sapta Nusantara Dwi Hasmidyani Dyego Ostian Dyna Meriza Edy Purnomo Effendi, Firman Elfariana, Rizma Elvina, Nova Etika Prasetyani Etika Prasetyani, Etika Ety Septiati Febriani, Ria Firsta, Risa Rahmatia Fitra, Dian Fitrisyah, Muhammad Aidil Hapizah Harisman Nizar Hauda, Nabilah Hendrik Efendi Lumban Tobing Hijir Ardiansyah Hiriza Imron Ida Hamidah Ifana, Bernika Indrialis Ika Pratiwi Ika Pratiwi Indah Rahmasari Indaryanti Indaryanti Intan Saputri Ismail, Norulhuda Isrokatun Isrokatun Isrok’atun Jeri Araiku Jesika Dwi Putriani Johan, Mery Khairida Fahriya Imtinan Kurniadi, Elika Lasti, Nadila Leni Maimuna Luthfi, Nurrana M David Safitra M. Arrasikh Hidayatullah Arrasikh M. Yusuf Maimuna, Leni Marhamah Marhamah Marina, Rini Martin, Cecil Hiltri Masrukan Masrukan Mery Johan Meryansumayeka Meryansumayeka Mitha Frilia Muhammad Aidil Fitrisyah Muhammad Akbar Budiman Muhammad Yusuf Muhammad Yusup Muhammad Yusup Mulyono, Budi MUSLIMIN Nabila Putri Isamer Nabila, Siti Nety Wahyu Saputri Ningsih, Putri Ningsih, Sri Tuti Nisa, Sholihatun Novi Susanti Novi Triana Novita Sari Novita Sari Nugraha, Inka Verandera Nur Fitriyana Nuradinda, Amieyah Nurdiyanto, Tito Nuril Fajria Ramadhona Nuril Fajriana Ramadhona Nurrana Fitria Luthfi Nyiayu Fraisa Fatiyah, Nyiayu Fraisa Nyimas Aisyah Nyimas Aisyah Oktaviani Silaen, Elza Pemi Purnama Sari Pratiwi, Weni Dwi Pratiwi, Weni Dwi PUJI ASTUTI Pujiati Pujiati Purwasi, Lucy Asri Purwoko Purwoko Purwoko Purwoko Puspita Sari Putra, Eko Septiansyah Putri Ningsih Putri, Dhea Anisah Putri, Ratu ilma Indah Putriani, Jesika Dwi Rahma Siska Utari Rahmawati Rahmawati Rahmawati, Rahmawati Ramadan, Dwi Cahya Ramadhona, Nuril Fajria Rarri Bian Ryandi Ratu Ilma Ratu Ilma Indra Putri Rendi Muhammad Aris Rendi Muhammad Aris, Rendi Muhammad Reni Setiawati Reni Setiawati Riski Audrilia S. B. Waluya, S. B. Safitra, M. David Sakiman, Novi Komariyatiningsih Sanita, Eka Saputri, Intan Sari, Arika Sari, Filian Yunita Sari, Pemi Purnama Scristia, Scristia Setiyowati, Nadiah Sholihatun Nisa Silaen, Elza Oktaviani Simarmata, Ruth Helen Sindi Citra Rahayu SISKA NINGSIH Siti Mistima Maat Situmorang, Gresilia Somakim, Somakim Sujinal Arifin Sukmaningthias, Novika Sukmaningtias, Novika Suparmi, Etty Supratik Suryani , Eka SURYANI, EKA Susanti, Elsa SYAHRIAL SYAHRIAL Tatag Yuli Eko Siswono titin wijayanti Tito Nurdiyanto Tobing, Hendrik Efendi Lumban Triana, Novi Trisia Wati Turidho, Aisyah Uswatun Hasanah Utami, Marta Risa Putri Vera Yuliana Vira Putri Ermanda Wijaya, Aldi Putra Winda Nursantika Wulan, Dewi Ananti Wulan, Dewi Ananti Wulandari, Trisna Yanna Sanova Yefsi Desty Ania Yonanda, Pramestry Yuliana FH Yulianita Yunita Sari Manalu, Yunita Sari Yurika Mariani Yusuf Hartono Zuli Nuraeni Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi _

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