Story: A Butterfly? An Attractor?

The vignette concerns a study that investigated engagement in mathematical problem solving under difficult conditions. It provides an example of dynamic research design, using chaos theory as a metaphor for both designing research and examining findings, and sets the stage for a later in‐depth article about dynamic research design in education.

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PENGARUH PENGGUNAAN MODEL LEARNING STARTS WITH A QUESTION TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA

Journal of Didactic Mathematics ◽

10.34007/jdm.v1i2.173 ◽

2020 ◽

Vol 1 (2) ◽

pp. 70-77

Author(s):

Mustika Helma ◽

Gigin Saipul Rahma

Keyword(s):

Problem Solving ◽

Research Design ◽

Experimental Research ◽

Hypothesis Test ◽

Mathematical Problem ◽

T Test ◽

Mathematical Problem Solving ◽

Model Learning ◽

Ability Test ◽

Class Viii

The study began with observations at VIII Rengat Barat Middle School students of class VIII. This study aims to determine students' mathematical problem solving abilities using the Learnig Starts With A Question model. This type of research is experimental research (experimental research) with a quasi-experimental design research design. The research design used was The Randomized posttest-only control design. The sampling technique uses Simple Random Sampling. In this study the instrument used was a test of students' mathematical problem solving abilities. Data obtained on the problem-solving ability test were analyzed using the Independent Samples T-Test based on the results of the hypothesis test, the value of tcount = 2.014 and ttable = -1.999 with (df) n-2 and significance <0.05 (0.048 <0.05). As for the Independent Samples T-Test testing criteria, reject H0 if t> t table. Based on that, H0 is rejected because tcount = 2,014> ttable = -1,999. So it can be concluded that the students 'mathematical problem solving ability using the Learning Starts With A Question learning model is better than the students' mathematical problem solving ability using the conventional model in class VIII of SMP Negeri 4 Rengat Barat. Keywords: Problem Solving, Learnig Starts With A Question

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KEMAMPUAN PEMECAHAN MASALAH DAN KOMUNIKASI MATEMATIS MENGGUNAKAN MODEL STAD BERBANTUAN ALAT PERAGA DI SMP ISLAM KARANGPLOSO

JPM : Jurnal Pendidikan Matematika ◽

10.33474/jpm.v5i2.3536 ◽

2019 ◽

Vol 5 (2) ◽

pp. 112

Author(s):

Ngganiyatur Rochmah ◽

RR. Ettie Rukmigarsari ◽

Siti Nurul Hasana

Keyword(s):

Qualitative Research ◽

Problem Solving ◽

Research Design ◽

Communication Skills ◽

Quantitative Research ◽

Mathematical Problem ◽

Mathematical Problem Solving ◽

Mathematical Communication ◽

Problem Solving Skills ◽

Sequential Explanatory

Pembelajaran matematika merupakan proses interaksi atau komunikasi antara guru dan peserta didik serta lingkungan belajar agar peserta didik memperoleh kompetensi dalam bidang matematika. Kompetensi di bidang matematika yang harus dimiliki oleh peserta didik salah satunya adalah kemampuan pemecahan masalah matematis dan kemampuan komunikasi matematis, karena pada dasarnya kemampuan tersebut merupakan suatu kemampuan yang penting dan perlu dikuasai oleh peserta didik yang belajar matematika. Khususnya peserta didik sekolah menengah (SM). Metode yang digunanakan dalam penelitian ini adalah mix method research, (metode campuran) dengan jenis sequential explanatory. Desain penelitian kuantitatif menggunakan true experimental. Sedangkan desain penelitian kualitatif menggunakan deskriptif-kualitatif yang digunakan untuk melengkapi penelitian kuantitatif. Pada artikel ini dijelaskan bahwa perlakuan dengan model kooperatif tipe STAD dapat mempengaruhi kemampuan pemecahan masalah matematis dan kemampuan komunikasi matematis peserta didik. Hal tersebut dapat dilihat dalam hasil analisis data kuantitatif maupun kualitatif yang menunjukkan adanya perbedaan kemampuan pemecahan masalah matematis dan kemampuan komunikasi matematis antara peserta didik kelas eksperimen yang diberi perlakuan dengan model kooperatif tipe STAD dengan peserta didik kelas kontrol yang diberi perlakuan dengan model konvensional. Mathematical learning is a process of interaction or communication between teachers and students and the learning environment so that students gain competence in the field of mathematics. One of the competencies in the field of mathematics that must be possessed by students is mathematical problem solving skills and mathematical communication skills, because basically these abilities are an ability that is important and needs to be mastered by students who learn mathematics. Especially middle school students. The method used in this research is a mix method with sequential explanatory methods. Quantitative research design uses true experimental. While the qualitative research design uses descriptive-qualitative research that is used to complement quantitative research. In this article, it is explained that the treatment with the cooperative type STAD model can affect students' mathematical problem solving abilities and mathematical communication skills. This can be seen in the results of quantitative and qualitative data analysis which shows a difference in mathematical problem solving abilities and mathematical communication skills between experimental class students who were treated with the cooperative type STAD model and control class students who were treated with conventional models.

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