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All Journal TABULARASA Journal of Didactic Mathematics Darul Ilmi: Jurnal Ilmu Kependidikan dan Keislaman Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains
Lili Nur Indah Sari
Universitas Negeri Medan
Religion Decision Sciences, Operations Research & Management Education Mathematics Social Sciences

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Peningkatan Kemampuan Koneksi Matematis dan Berpikir Kreatif Siswa Melalui Pembelajaran Open Ended di SMP Muhammadiyah 03 Medan Sari, Lili Nur Indah; Syahputra, Edi; Asmin, Asmin
TABULARASA Vol 12, No 1 (2015): Jurnal TABULARASA
Publisher : TABULARASA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan penelitian ini adalah: (1) untuk mengetahui peningkatan kemampuan koneksi matematis dan kemampuan berpikir kreatif siswa yang diajar dengan menggunakan pembelajaran open ended dan pembelajaran biasa, (2) untuk mengetahui interaksi antara pembelajaran dan kemampuan awal matematika terhadap peningkatan kemampuan koneksi matematis dan kemampuan berpikir kreatif siswa. Penelitian ini adalah kuasi eksperimen. Populasi dalam penelitian ini adalah seluruh siswa SMP kelas VIII SMP 03 Muhammadiyah Medan berakreditasi A dan sampelnya dipilih secara acak yaitu kelas VIIIc (kelas eksperimen) dan kelas VIIId (kelas kontrol). Instrumen divalidasi terlebih dahulu, maka hasilnya menunjukkan bahwa (1) untuk tes kemampuan koneksi matematis adalah valid dengan kriteria tinggi, sedangkan untuk tes kemampuan berpikir kreatif adalah valid dengan kriteria tnggi. (2) koefisien realibilitas untuk tes kemampuan koneksi matematis adalah 0,73 dengan kategori tinggi, sedangkan tes kemampuan berpikir kreatif siswa adalah 0,79 dengan kategori tinggi. Analisis data dilakukan dengan ANAVA dua jalur. hasil penelitian ini menunjukkan bahwa (1) adanya peningkatan kemampuan koneksi matematis dan kemampuan berpikir kreatif siswa dengan menggunakan pembelajaran open ended lebih tinggi dibandingkan dengan siswa yang memperoleh pembelajaran biasa, (2) tidak terdapat interaksi antara pembelajaran dengan tingkat kemampuan siswa terhadap peningkatan koneksi matematis dan kemampuan berpikir kreatif. Peneliti menyarankan: (1) agar pembelajaran open ended menjadi alternatif bagi guru dalam meningkatkan kemampuan koneksi matematis dan berpikir kreatif siswa, (2) perangkat pembelajaran dipersiapkan secara matang serta disesuaikan dengan indikator kemampuan dan alokasi waktu yang harus dicapai, (3) agar selektif dalam memilih materi yang diajarkan dengan pembelajaran open ended karena tidak semua materi cocok diterapkan dengan pembelajaran open ended.
PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MELALUI PENDEKATAN PENDIDIKAN MATEMATIKA REALISTIK Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 5, No 01 (2017)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v5i01.1258

Abstract

Increasing the Ability of Problem Solving by Using Realistic Mathematics Education approach (RME) in Seventh Year Student Class. The aims of the research are: (1) to know the increasing ability of problem solving mathematic student’s by using Realistic Mathematics Education approach, (2) to know there was the interaction between learning and first mathematic ability toward the increasing ability of problem solving mathematic. The research was carried out at MTs S Al-Hijrah Medan. The population of this research is the student grade 1 (one) by taking a sample of the two classes. The data obtained through test THURS, test the ability of mathematical problem solving. The data was analyzed with the test of ANAVA two lines. The result of this research shown that (1) there was increasing ability in problem solving mathematic student’s by using Realistis Mathematics Education approach was better than using direct struction, (2) there were no interaction between learning and student’s ability level to the increasing ability of problem solving mathematic. Research findings recommend RME approach was made one of the learning approaches used in primary schools to conduct varied and innovating learning.
Pengaruh Kecerdasan Logis-Matematis Terhadap Hasil Belajar Matematika Pada Siswa Kelas VII Di MTSN 2 Padangsidimpuan Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 7, No 01 (2019)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v7i01.1665

Abstract

The formulation of the problem in this study is whether there is the influence of logical-mathematical intelligence on the learning outcomes of class VII students of Padangsidimpuan MTsN 2? The purpose of this study was to determine the effect of logical-mathematical intelligence on the mathematics learning outcomes of class VII students of Padangsidimpuan 2 MTsN.This research includes the type of quantitative research using the Ex Post Facto method. The population in this study were VII grade students of MtsN 2 Padangsidimpuan which numbered 211 students while the sample was all students who took the test of Logical-Mathematical Intelligence which amounted to 211 people. The data collection method used is a test with data analysis techniques namely t test.The results showed that: There was a significant influence between logical-mathematical intelligence and the mathematics learning outcomes of class VII students of Padangsidimpuan MTsN 2 as evidenced by the results of the t test of 17.137 greater than the t table of 1.98 (17.137 1.98) which means there are differences in learning outcomes of students who have high logical-mathematical intelligence with students who have low logical-mathematical intelligence. So that it can be concluded that there is a significant influence between Logical-Mathematical intelligence variables and mathematics learning outcomes where students who have high logical-mathematical intelligence, the learning outcomes are high and vice versa. 
PENINGKATAN KEMAMPUAN KONEKASI MATEMATIS DAN BERPIKIR KREATIF SISWA MELALUI PEMBELAJARAN OPEN ENDED DI SMP MUHAMMADIYAH 03 MEDAN Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 3, No 02 (2015)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v3i02.1308

Abstract

The aim of this research are: (1) to find out the improving competence of mathematical connection and student’s creative thinking through open ended learning and usual learning, (2) to find out there was the interaction between learning and fist mathematical competence toward the improving competence mathematical connection and student’s creative thinking. This kind of research is the quasi experiment. The populations of this research are the students in eleventh grade of SMP Muhammadiyah 03 Medan. The sample chosen random sample which are VIII, as experiment class and VIII, as control class. The instrument is validated first, and the result is shown that (1) to test the competence in mathematical connection is valid with the high criteria, on other hand to test Student’s creative thinking competence is valid with the high criteria. (2) Coefficient reliability to test mathematical connection competence is 0,73 with the high category, on other hand reliability to test student’s creative thingking competence is 0,79 with the high category. Data analysis is can rid by using ANAVA two ways The result of this research Revealed that (1) there was improment competence in mathematical student’s creative thinking by using open ended learning is better than using usual learning, (2) there no interaction between learning and student’s competence level to the improment competence of mathematical connection and student’s creative thinking. The research suggests: (1) to use open ended learning as the alternative way for teachers to improve the competence in mathematical connection and student’s creative thinking. (2) learning tools is prepared well and suited with the indicator of competence and time allocation that must be reached, (3) must be selective in choosing the material of learning by using open ended learning because not all materials of teaching is suitable to apply by using open ended learning.
PERANGKAT PEMBELAJARAN BERBASIS MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 4, No 02 (2016)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v4i02.1233

Abstract

Learning Instructional is a set of learning sources that are arranged for students and teachers guide in teaching learning process. Learning Instructional consists of syllabus, lesson plan, materials, students’ worksheet, learning media, and test to measure students’ ability. Cooperative learning is a successful teaching strategy in which small teams, each with students of different levels of ability, use a variety of learning activities to improve their understanding of a subject. Jigsaw is a  grouping strategy in which the members of the class are organized into jigsaw groups. The students are then reorganized into expert groups containing one member from each jigsaw group. The members of the expert group work together to learn the material or solve the problem, then return to their jigsaw groups to share their learning. By using learning instructional bases jigsaw cooperative learning type in teaching learning process, hopefully teaching learning process becomes more effective.
PERBEDAAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA DENGAN MENGGUNAKAN MODEL PEMBELAJARAN PROBING PROMPTING DAN PROBLEM BASED LEARNING DI MTsN 2 PADANGSIDIMPUAN Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 6, No 02 (2018)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v6i02.1276

Abstract

This study aims to determine the significant differences between students' mathematical problem solving abilities after using the Probing Prompting model and the Problem Based Learning learning model. This type of research uses the quasi experimental design method. The design of this study was a pretest-posttest control group design. In this design, the grouping of research samples was done randomly, the experimental class I was taught using the Probing Prompting learning model and the experimental class II was taught using the Problem Based Learning learning model before and after the treatment was given the pretest and posttest. The results obtained from the Student Problem Solving Ability test conducted on the Probing Promting learning model were 43 students and obtained an average value of 67.09 while the Problem Based Learning learning model was 44 students and an average value of 64.43 was obtained. Students 'problem solving abilities after using the Promting Probing learning model in class VIII-1 (Experiment I) Padangsidimpuan 2 MTs obtained an average score of 67.09 Problem Solving Ability with a standard deviation or diversity from the results of students' mathematical problem solving ability test of 12.778. Students 'Problem Solving Ability after using the Problem Based Learning learning model in class VIII-3 (Exp.Padangsidimpuan MTs 2 obtained the average value of students' problem solving abilities of 64.43 with a standard deviation or diversity of a student's problem solving abilities of 13.944. Based on the t-test it is known that there is no difference in the Problem Solving Ability of Students with the Probing Promting learning model in class VIII-1 (Experiment I) and the Problem Based Learning learning model in class VIII-3 (Experiment II) or in other words concluded that there is no difference in Ability Problem Solving Students who are taught using Probing Promting learning models and Problem Based Learning learning models.
Penerapan Pembelajaran Matematika Realistik untuk Meningkatkan Kemampuan Pemecahan Masalah Matematik Siswa Di MIN 2 Padangsidimpuan Sari, Lili Nur Indah
Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Vol 8, No 01 (2020)
Publisher : IAIN PADANGSIDIMPUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/logaritma.v8i01.2355

Abstract

This study aims to improve the ability to solve mathematical problems with the application of realistic mathematics learning. From the students' initial abilities, it can be seen that students in class V MIN 2 Padang sidimpuan still have a fairly low average grade. The study used classroom action research as much as 2 cycles. The subjects of this study were students of class V MIN 2 Padangsidimpuan which were primary data. The research instrument in this study was a test of students' mathematical problem solving abilities and observation sheets. Based on the results of data analysis, it can be concluded that the average increase in students' mathematical problem solving ability from the initial test is 19.833 (19.833%) categorized as very poor to 51.083 (51.083%) which is not good enough in the first cycle and becomes 83.083 (83.083%) in the good category in the cycle II.
Enhancing geometry learning through project-based teaching materials: A focus on circumference and area of circles Sari, Lili Nur Indah; Hoiriyah, Diyah
Journal of Didactic Mathematics Vol 5, No 3 (2024): December
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v5i3.1911

Abstract

This study aims to develop a Student Worksheet based on the Project-Based Learning (PjBL) approach, ensuring its validity, practicality, and effectiveness in facilitating mathematics instruction on the topic of circumference and area of circles for MTs students. The research follows a Research and Development (R&D) methodology, employing the ADDIE development model, which encompasses five stages: Analysis, Design, Development, Implementation, and Evaluation. The validation process assessed the worksheet’s quality across four aspects: content feasibility, material presentation, worksheet structure, and linguistic quality. The results indicate that the content feasibility scored 84%, material presentation 86.5%, worksheet elements 86%, and linguistic quality 88%, all within the “very valid” category. Overall, the Student Worksheet achieved a validity score of 86% (categorized as “very valid”), confirming its appropriateness for use in the classroom. These findings suggest that the PjBL-based Student Worksheet effectively supports mathematics learning and meets expert criteria for validity.
The Effect of Self Directed Learning on Students' Academic Procrastination Attitudes Siregar, Rahma Hayati; Nasution, Ja'far; Sari, Lili Nur Indah; Hoiriyah, Diyah
Darul Ilmi: Jurnal Ilmu Kependidikan dan Keislaman Vol 13, No 1 (2025)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/di.v13i1.16377

Abstract

 This study aims to determine the effect of Self Directed Learning on academic procrastination attitudes in students. Self Directed Learning is an individual's ability to manage the learning process independently, while academic procrastination is the tendency to postpone academic tasks. This study uses a quantitative approach with a correlational method. Samples were taken from junior high school students using cluster random sampling. Data were collected through questionnaires that had been tested for validity and reliability, then analyzed using the Mann Whitney U Test. The results showed that there was no significant effect of students who applied Self Directed Learning on students' procrastination attitudes. However, there was a decrease in academic procrastination attitudes in mathematics in students who applied Self Directed Learning, which can be seen from the average value of students' procrastination attitudes
Co-Authors Asmin Asmin, Asmin Edi Syahputra Hoiriyah, Diyah Nasution, Ja'far Rahma Hayati Siregar