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Hasratuddin Hasratuddin

Program Pasca Sarjana Universitas Negeri Medan

Author-ID : 278265

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Public Health Social Sciences Other

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PENERAPAN MODEL PEMBELAJARAN TIPE THINK PAIR SHARE UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SMP Nababan, Suryani; Hasratuddin, Hasratuddin
CARTESIUS : Jurnal Pendidikan Matematika Vol 6 No.2 Tahun 2023
Publisher : Unika Santo Thomas Medan

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Penelitian tindakan kelas ini bertujuan untuk mengetahui apakah kemampuan komunikasi matematis siswa lebih baik setelah menggunakan model pembelajaran kooperatif Think Pair Share. Siswa kelas VIII-1 SMP Negeri 8 Medan yang berjumlah 26 orang menjadi subjek penelitian ini. Hasil analisis data tentang kemampuan komunikasi matematis siswa pada siklus I menunjukkan bahwa hanya 11 siswa (atau 42,30% dari total) memenuhi syarat, yaitu mendapatkan nilai minimal 70. Hasilnya menunjukkan bahwa ketuntasan klasikal kelas belum memenuhi persyaratan minimal 85%. Siklus kedua menunjukkan bahwa 23 siswa atau 88,46% dari total siswa telah mencapai standar komunikasi yang ditargetkan, yaitu mendapatkan nilai minimal 70. Siswa dengan ketuntasan belajar telah meningkat sebanyak 12 siswa. Siklus I menunjukkan peningkatan kemampuan komunikasi matematis sebesar 14,49, dengan nilai rata-rata 64,95 pada tes kemampuan komunikasi dan siklus II meningkat menjadi 79,44. Di kelas VIII-1 SMP Negeri 8 Medan, penerapan model pembelajaran kooperatif Think Pair Share pada materi sistem persamaan linear dua variabel menunjukkan peningkatan komunikasi matematis siswa.

Perbedaan Kemampuan Pemecahan Masalah Matematis Siswa yang Menggunakan Model Pembelajaran Kooperatif Tipe TPS Dan STAD Berbantuan Autograph di SMP N 2 Deli Tua Arifino, Syuza; Hasratuddin, Hasratuddin
CARTESIUS : Jurnal Pendidikan Matematika Vol 7 No.2 Tahun 2024
Publisher : Unika Santo Thomas Medan

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:Penelitian ditujukan untuk memperoleh informasi keberbedaan kemampuan pemecahan masalah pada model TPS dan STAD yang berbantukan Autograph dalam penerapannya serta menilai tuntas klasikal pada kedua kelas dengan model yang digunakan. Penelitian didesain dengan two group design dengan subjek sampel siswa kelas IX-5 dan IX-7 SMP N 2 Deli Tua dengan jumlah 62 siswa. Data diperoleh dinyatakan normal dan homogen yang memberikan perlakuan prasyarat dalam uji hipotesis (uji t). Hasil diperoleh dengan kriteria uji. Sehingga, memberikan kesimpulan penolakan yang artinya adanya keterbedaan model pembelajaran TPS dan STAD terhadap kemampuan pemecahan masalah matematis siswa yang mencakup materi Transformasi Geometri di SMP Negeri 2 Deli Tua tahun ajaran 2023/2024.

Development of RME Based Mathematics Learning Tools to Improve Students' Problem-Solving Abilities and Independence Harahap, Shahnaz Shafitri; Hasratuddin, Hasratuddin; M.Simanjorang, Mangaratua
Jurnal Perspektif Vol 9 No 2 (2025): Jurnal Perspektif
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jp.v9i2.388

This study aims to describe: Validity, practicality and effectiveness of LKPD based on realistic mathematics learning approach developed towards improving students' problem solving ability and independence through LKPD based on realistic mathematics learning approach developed.: This study is a development research using Tessmer development model formative evaluation type. This development model consists of 2 stages of development, namely introduction (determination) and prototyping (design and evaluation). From the results of trial I and trial II obtained: LKPD based on realistic mathematics learning approach to improve students' problem solving ability and Learning Independence developed has met the criteria of valid, practical and effective; Improvement of problem solving ability using LKPD based on realistic mathematics learning approach that has been developed seen from the N-gain value in trial I of 0.35 increased to 0.39 in trial II, meaning it is in the "moderate" category; and the increase in students' self-ability with the realistic mathematics learning approach that has been developed can be seen from the N-gain value in trial I of 0.31 increasing to 0.40 in trial II, meaning it is in the "moderate" category.

Digital Media Innovation Based on Multimedia Cognitive and Constructivist Theory in a Cultural Context: Encouraging Students' Higher Order Thinking Skills Siregar, Budi Halomoan; Panjaitan, Asmin; Hasratuddin, Hasratuddin; Kairuddin, Kairuddin; Mulyono, Mulyono; Rahman, Arief Aulia
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 1 (2024): January
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i1.16800

The high-order thinking skills of students in Indonesia are classified as low, this is in line with the results of diagnostic tests conducted in class IX junior high school. Thus, it is necessary to develop digital media based on multimedia and constructivist cognitive theory with cultural context as one of the alternative solution. This study aims to (1) develop digital learning media based on constructivist and cognitive multimedia theories with a cultural context that fulfills the categories of validity, practicality and effectiveness; and (2) improve students' high-order thinking skills after using these media in the learning process. The research subjects were 30 students in class IX junior high school and the research objects were digital learning media based on constructivist theory and cognitive multimedia with a cultural context to improve students' high-level thinking skills on the topic of dilation. This is a research design with the Plomp model, which consists of (1) Preliminary research; (2) Prototyping phase; and (3) Assessment phase. The research instruments used were interviews, questionnaires and tests. The results showed that the product developed was included in the very valid, very practical, and effective category, where: (a) classical learning completeness reached 97%; (b) positive response by product users reached 97%; and (c) the N-Gain value was 0.791 in the very high category. Thus, it can be stated that the product meets the quality standard criteria, where the product can be used to improve students' high-level thinking abilities.

ANALISIS OBSERVASI HASIL BELAJAR SISWA SD KELAS III DAN KELAS V PADA MATA PELAJARAN MATEMATIKA DI KOTA MEDAN, KABUPATEN DELI SERDANG DAN KABUPATEN LANGKAT Rambe, Titin Rahmayanti; Rola, Fasti; Marianus, Sumarlin Mangandar; Pratama, Anggili; Dongoran, Jhonas; Hasratuddin, Hasratuddin
SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Vol. 13 No. 2 (2023): SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/sejpgsd.v13i2.46216

This study uses a qualitative descriptive method that aims to understand the phenomena of elementary mathematics learning outcomes. The resulting data is presented in the form of numbers described in the description. Research using the observation method was conducted on mathematics learning outcomes in grades III and grade V of elementary schools spread across three districts/cities in North Sumatra Province. To understand students' errors and misconceptions is essential for the effective teaching and learning of mathematics. It is important for teachers to approach student mistakes in a constructive way, helping students understand their mistakes and learn from them. Research has been conducted to investigate patterns of student misunderstandings, errors, and misunderstandings across educational systems, grade levels, gender, and time. Several case studies of mathematics subjects in elementary schools in North Sumatra Province became the main focus of the North Sumatra Education Office so that they held improvement and development activities for Chemistry, Biology, Physics and Mathematics subjects in 2022. The conclusion showed that only three grades III fulfilled and 1 class V that meets above the value of 70.

Penerapan Model Pembelajaran Student Teams Achievement Division Untuk Meningkatkan Kemampuan Penalaran Matematis Siswa di Kelas VIII MTsN 2 Medan Lubis, Putri Wildayani; Hasratuddin, Hasratuddin
ULIL ALBAB : Jurnal Ilmiah Multidisiplin Vol. 3 No. 8: Juli 2024
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jim.v3i8.4621

The aim of this research is to improve students' mathematical reasoning abilities after implementing the Student Teams Achievement Division (STAD) learning model. The subjects of this research were 32 students in class VIII-8 MTsN 2 Medan. The object of this research is the application of the Student Teams Achievement Division learning model. The type of this research is classroom action research. Data was collected through two reasoning tests in the form of essays. The Reasoning Ability Test I was carried out after Action I (Cycle I) which consisted of 4 questions, and the Logic Ability Test II was carried out after Action II (Cycle II) which consisted of 4 questions. The results of the research show an increase in students' mathematical thinking abilities which can also be seen in the results of their mathematical reasoning tests. Before action was taken, the average diagnostic test score was 39.75 and the overall level of thinking was in the very low thinking category for 2 students (6.25%). After carrying out Cycle I actions using STAD type cooperative learning, the average Reasoning Ability Test score increased to 69.68 and as many as 22 people (68.75%) had a poor level of reasoning ability, meaning that the class average increased by 29. 73. After the Cycle II actions were carried out, the average score for the Mathematical Reasoning Test II was 84.28 with a total of 29 students (90.63%) who were in the high completion category, meaning that the average score achieved had increased by 21. 15. Thus it can be concluded that learning using the STAD type cooperative learning model can improve students' mathematical reasoning abilities in class VIII-8 MTsN 2 Medan.

ANALISIS KEMAMPUAN KOMUNIKASI MATEMATIK SISWA DITINJAU DARI SELF EFFICACY Sibarani, Sari Ayu; Fauzi, Kms Muhammad Amin; Sitompul, Pardomuan; Hasratuddin, Hasratuddin; Rajagukguk, Waminton
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 16 No. 1: Juni 2024
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/sigma.v16i1.14614

Penelitian ini bertujuan untuk menganalisis kemampuan komunikasi matematik siswa ditinjau dari self efficacy. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Pengambilan subjek penelitian dialakukan dengan memberikan angket self efficacy kepada siswa kelas VII SMP Negeri 2 Siborong-borong, selanjutnya pengumpulan data dilakukan melalui tes kemampuan komunikasi matematik materi sistem persamaan linier dua variabel (SPLDV) ini diberikan kepada 6 subjek serta tes wawancaraKomunikasi matematik sangat penting dalam menyelesaikan masalah dalam matematika. Namun, pencapaian komunikasi matematik pada siswa masih tergolong rendah. Hal ini berkaitan dengan self efficacy pada siswa. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Hasil penelitian kemampuan komunikasi matematik siswa ditinjau dari self efficacy yaitu subjek menunjukkan hasil yang berbeda-beda. Berdasarkan hasil analisis hasil tes secara lisan dan tulisan dari 4 indikator kemampuan komunikasi matematis , ada subjek dengan self efficacy tinggi yaitu SET1 dapat memenuhi 4 indikator dari 4 indikator kemampuan komunikasi matematis, sedangkan subjek SET2 hanya mampu memenuhi 2 indikator, selanjutnya subjek sedang yaitu Subjek SES1 mampu memenuhi 3 indikator dan subjek SES2 hanya mampu memenuhi 2 indikator, serta subjek dengan self efficacy rendah yaitu SER1 dan SER2 tidak mampu memenuhi indikator apapun dari 4 indikator kemampuan komunikasi matematik. Sehingga dapat disimpulkan bahwa tingkat self efficacy tidak selamanya berbanding lurus dengan kemampuan komunikasi matematika, tetapi self efficacy yang tinggi terhadap matematika akan mempengaruhi meningkatnya kemampuan komunikasi matematik siswa karena dapat membuat siswa memiliki sikap positif terhadap matematika dalam menyelesaikan permasalahan matematika.

The Effectiveness Of Rme Approach With Assisted By Learning Media On Students’ Mathematical Problem-Solving Abilities At Smp Negeri 8 Percut Sei Tuan Cintya Siahaan, Tryani; Hasratuddin, Hasratuddin
Journal of Comprehensive Science Vol. 1 No. 4 (2022): Journal of Comprehensive Science (Jcs)
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jcs.v1i4.81

The purpose of this research is: 1) The effectiveness of the RME approach on mathematical problem-solving abilities at SMP Negeri 8 Percut Sei Tuan as compared to ordinary learning. 2) There is a relationship between students’ problem-solving skills and their initial ability (low, medium, high). The research was conducted at SMP Negeri 8 Percut Sei Tuan from May to June 2022. All the seventh-grade students at SMP Negeri 8 Percut Sei Tuan were subjects of this study. A random sample of 30 students from each class, VII-1 as the experiment class and VII-2 as the control class, was taken. This research is included experimental research using quasi-experiment methods. The instrument utilized were, an introductory mathematical aptitude test, problem-solving test, a sheet of student’s activity observation, and a questionnaire with student responses. The data analysis use in this research is ANAVA two-ways. The findings of this study revealed that: 1) RME approach with assisted by learning media on problem solving ability is effective compared to ordinary learning, and 2) there was no interaction between learning and students’ mathematical initial ability low, medium, and high on students’ mathematical problem-solving ability. The researcher recommended using the RME technique with the use of learning media as an alternate method for teachers to help pupils improve their problem-solving skills

Kemampuan Berpikir Kreatif Matematis Siswa Dan Rasa Ingin Tahu Siswa Pada Pembelajaran Open Ended di SMP Negeri 1 Naman Teran Sembiring, Susanty Br; Hasratuddin, Hasratuddin
ALACRITY : Journal of Education Volume 4 Issue 2 Juni 2024
Publisher : LPPPI Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52121/alacrity.v4i2.365

Tujuan dari penelitian ini ialah untuk mengetahui apakah kemampuan berpikir kreatif matematis siswa yang diberi pembelajaran open ended lebih baik dari pembelajaran biasa. Penelitian eksperimen ialah salah satu penelitian kuantitatif dimana peneliti memanipulasi satu atau lebih variable bebas, mengontrol variabel lain yang relevan, dan mengamati efek dari manipulasi pada variabel terikat. Murid dalam penelitian ini ialah murid kelas VII – 1 (kelas eksperimen) yang berjumlah 22 murid dan VII–2 (kelas kontrol) yang berjumlah 23 murid. Lembar tes kemampuan berpikir digunakan untuk mengumpulkan data. Tes kemampuan berpikir kreatif dilaksanakan dua kali ialah sebelum dan sesudah pembelajaran menggunakan pendekatan open ended yang sering disebut dengan PreTest dan PostTest. Temuan penelitian ini menunjukkan bahwa penggunaan pendekatan open ended lebih baik dari pembelajaran biasa terhadap berpikir kreatif siswa dan rasa ingin tahu siswa, Kemampuan berpikir kreatif dan rasa ingin tahu secara simultan terhadap model open ended ialah sebesar 0,000 < 0,05 dan nilai Fhitung 152,126 > Ftabel 3,49, sehingga terdapat perbedaan dan lebih baik kemampuan berpikir kreatif dan rasa ingin tahu secara simultan terhadap model open ended. Selain itu pada uji hipotesis dilihat bahwa nilai signifikansi sebesar 0,119 yang berarti nilai tersebut lebih besar dari 0,05 maka H0 diterima dan Ha ditolak. Dengan demikian dapat disimpulkan bahwa terdapat perbedaan secara signifikan antara kemampuan berpikir kreatif siswa dan rasa ingin tahu siswa dengan menggunakan model pembelajaran open ended dan kemampuan berpikir kreatif siswa dan rasa ingin tahu siswa menggunakan model pembelajaran biasa.

ANALISIS KESALAHAN SISWA BERDASARKAN TEORI NEWMAN DALAM MENYELESAIKAN SOAL CERITA PADA MATERI BILANGAN DI SEKOLAH DASAR Fachrurazi, Fachrurazi; Hayati, Rahmi; Karim, Asrul; Pratiwi, Siti Habsari; Marzuki, Marzuki; Hasratuddin, Hasratuddin
Euclid Vol 10 No 1 (2023)
Publisher : Universitas Swadaya Gunung Jati.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/e.v10i2.8502

AbstrakRendahnya hasil belajar matematika siswa kelas dalam menyelesaikan soal cerita pada materi bilangan. Penelitian ini bertujuan untuk menganalisis kesalahan siswa dan guru dalam memecahkan masalah pemahaman narasi di kelas tiga dan lima sekolah dasar berdasarkan teori kesalahan Neuman Penelitian ini menggabungkan pendekatan kualitatif. Tujan Penelitian ini bertujuan untuk menyelidiki secara komprehensif kesalahan yang dilakukan oleh siswa kelas tiga dan lima dalam menyelesaikan soal cerita dengan menggunakan metode analisis Newman dan mengidentifikasi penyebab kesalahan tersebut dengan menggunakan metodologi yang sama. Metode pengumpulan data yang digunakan dalam penelitian ini meliputi tes, wawancara, dan catatan tertulis. Instrumen utama yang digunakan dalam penelitian ini adalah tes bercerita materi pelajaran, dengan satu soal uraian untuk masing-masing kelas 3 dan 5, serta wawancara dan dokumentasi tertulis. Reduksi data, penyajian data, dan penarikan kesimpulan adalah bagian dari teknik analisis data yang digunakan. Hasil Penelitian Ketidakmampuan siswa untuk membaca secara akurat seringkali menjadi akar penyebab kesalahan pertama mereka. Kesalahan membaca dibuat ketika seorang siswa tidak dapat menguraikan kata-kata kunci pertanyaan itu. Penyebab kedua adalah kegagalan mendiagnosis masalah dengan benar. Kesalahan dalam pemahaman masalah adalah jenis kesalahan yang dilakukan siswa ketika mereka dapat membaca dengan baik tetapi tidak yakin apa yang sebenarnya perlu diperbaiki. Penyebab ketiga adalah transformasi yang salah. Masalah dengan transformasi terjadi ketika siswa membuat pilihan yang salah mengenai operasi matematika yang harus dilakukan. Keempat, kesalahan proses yang harus disalahkan. Ketidakmampuan untuk mengukur jumlah secara akurat membuat siswa membuat kesalahan dalam memperkirakan kecepatan pemrosesan. Kesalahan dalam proses perhitungan dapat ditelusuri kembali ke ketidakmampuan siswa untuk menggunakan algoritma secara konsisten dan akurat. Penyebab kelima adalah kecerobohan dalam menulis jawaban akhir. Kesulitan menulis jawaban akhir adalah kesulitan di mana siswa tidak dapat menghasilkan hasil tertulis Kata Kunci. Teori Neuman, Soal Cerita, Bilangan AbstractThe low grade students' mathematics learning outcomes in solving word problems on number material. This study aims to analyze students' and teachers' errors in solving narrative comprehension problems in grades three and five of elementary school based on Neuman's theory of error. This study incorporates a qualitative approach. The purpose of this study was to comprehensively investigate the errors made by third and fifth grade students in solving word problems using the Newman analysis method and identify the causes of these errors using the same methodology. Data collection methods used in this study include tests, interviews, and written notes. The main instrument used in this study was the subject matter telling test, with one essay question for each grade 3 and 5, as well as interviews and written documentation. Data reduction, data presentation, and drawing conclusions are part of the data analysis technique used. Research Results Students' inability to read accurately is often the root cause of their first mistakes. Reading errors are made when a student cannot decipher the key words of the question. The second cause is failure to properly diagnose the problem. Errors in problem understanding are the types of errors students make when they can read well but are not sure what exactly needs to be corrected. The third cause is wrong transformation. Problems with transformations occur when students make wrong choices about which mathematical operations to perform. Fourth, process errors are to blame. The inability to measure quantities accurately leads students to make errors in estimating processing speed. Errors in the calculation process can be traced back to students' inability to use algorithms consistently and accurately. The fifth cause is carelessness in writing the final answer. The difficulty of writing the final answer is the difficulty in which the student is unable to produce a written result Keywords. Neuman Theory, Word Problems, Numbers

Co-Authors Ahmad Rifai Siregar, Ahmad Rifai Anam, Rifat Shafwatul Anggili Pratama Annas, Muhammad Khairul Aprillia, Ulfa Dwi Arifino, Syuza Asmin Panjaitan Asrul Karim, Asrul Bornok Sinaga Budi Halomoan Siregar Chairul Fauzi Cintya Siahaan, Tryani Dian Armanto Doharni, Hasnah E. Elvis Napitupulu, E. Elvis E.E. Napitupulu, E.E. Fachrurazi Fasti Rola Fauzi, KMS Muhammad Amin Fauzi, Kms.Amin Harahap, Risfa Rahma Harahap, Shahnaz Shafitri Hetty Elfina Ida Karnasih Ilham Akbar Ismayanty, Ismayanty Izwita Dewi Jhonas Dongoran Joefanny, Laras Kairuddin . Landong, Ahmad Lena Rosdiana Pangaribuan Limbong, Sri Fitri Perdani Lisa Lisa Lisa Lisa, Lisa Londong, Ahmad Lubis, Khadijah Utami Lubis, Putri Wildayani M.Simanjorang, Mangaratua Manalu, Meyanti Manullang, Maratua Marzuki Marzuki Mulyono Mulyono Nababan, Suryani Nasution, Nahlira Anggi Nasution, Suriani Ningtias, Yovita Panjaitan, Sorta Corie Ivana Pargaulan Siagian Pratama, Muhammad Arif Putri, A’liyya Putri, Khairunnisa Rahmad Husein Rahman, Arief Aulia Rahmi Hayati Ramadani, Sri Rani Febriyanni, Rani Rina Ardillah Lubis Rokhiyah, Isti Samosir, Ike Ria Sariayu, Sariayu Sembiring, Susanty Br Sendi Ramdhani Sibarani, Sari Ayu Siregar, Aurelia Desi Natalia Siregar, Fadhillah Rahma Siregar, Julya Syahleni Siregar, Lenni Marlina Siregar, Mia Rizki Idaroyanni Siregar, Muhammad Fadhil Hidayat Siregar, Nurhafizhoh Siti Habsari Pratiwi, Siti Siti Mayang Sari Sitompul, Fatimah Sitompul, Pardomuan Sitorus, Ermida Hormatua Sitorus, Pricilia Mawar M Sri Ardiasih, Lidwina Sri Wahyuni Suci Dahlya Narpila, Suci Dahlya Sumarlin Mangandar Marianus Syahlan, Syahlan Syahril Syahril Tanti Jumaisyaroh, Tanti Taruli Marito Silalahi Waminton Rajagukguk Wariyanti, Astri Waruwu, Winning Amintas Kartika Yulita Molliq Rangkuti

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