Students’ mathematical reasoning ability in solving PISA-like mathematics problem COVID-19 context

This study aims to use the Pendidikan Matematika Realistik Indonesia (PMRI) approach to measure the mathematical reasoning ability of grade VII students in answering PISA-like mathematics problems on number content in the context of COVID-19. This study employs descriptive research with 34 participants from a junior high school in Palembang, Indonesia. Tests, interviews, and observations were utilized to collect data. The method of analysis adopted is descriptive. Google Meet is used to facilitate learning. Learning the PMRI technique was accomplished in this study by assigning sharing and jumping tasks. That is, assignments for students to discuss with each other have different levels of difficulty, followed by two exam questions. In the context of COVID-19, the test questions are PISA-like maths problems. The results show that students’ average mathematical reasoning skill is 63,037, with mathematical manipulation a common indicator. Most students have exhibited indications for presenting conjectures. However, only a few students have put down indicators for drawing logical conclusions, so drawing logical conclusions is an indicator that students rarely see. Overall, grade VII students' mathematical reasoning skills in answering PISA-like mathematics questions on number material in the context of COVID-19 utilizing the PMRI approach is good since students are used to modeling contextual problems such that mathematical manipulation indicators occur.

Pengaruh model pembelajaran kooperatif tipe think talk write (TTW) terhadap kemampuan pemecahan masalah matematika siswa kelas XI MIA SMA NW Mataram Tahun Pelajaran 2019/2020

This research aims to determine the effect of Think Talk Write (TTW) cooperative learning model towards the ability of mathematics problem solving of grade XI MIA SMA NW Mataram academic year 2019/2020. Type of the research is a quasi-experimental design with a posttest only control design. The population of the research is all students grade XI MIA SMA NW Mataram academic year 2019/2020. The sampling technique was saturated sampling tecnique, so the sample obtained that XI MIA 1 as the experimental class and XI MIA 2 as the controlling class. The instrument used was a test of the students learning achievement (post-test) on the sequence and series material. Quantitave analysis obtained by using t-test. The result of this research showed that there is a difference in the average score of students who get learning use the Think Talk Write (TTW) cooperative learning models with students who use direct learning. Meanwhile the effect of Think Talk Write (TTW) cooperative learning model towards the ability of mathematics problem solving of using the effect size with moderate category. This means that the Think Talk Write (TTW) type of cooperative learning models is quite influential on the mathematics problem solving ability of grade XI MIA SMA NW Mataram.

DESCRIPTION OF MATHEMATICS PROBLEM SOLVING ABILITY IN TERMS OF LEARNING STYLE

This study aims to describe and determine students' abilities to solve mathematical problems that focus on visual and auditory learning styles. Subjects are eighth-grade students from junior high school in Bulukumba district. This research is descriptive qualitative, which seeks to determine and describe the mathematical problem solving ability in terms of student learning styles. Data is collected using questionnaires, tests, and interviews. The use of questionnaires describes visual learning styles and auditory learning styles. Two numbers of the test determine mathematics problem solving ability in Polya's step, and interviews confirm mathematics problem solving ability. The data analysis techniques are reduction, presentation, and verification. Based on the results, the first subject with a visual learning style can fulfill all the indicators of Polya's steps, but another one is just three indicators. The first subject with an auditory learning style can meet all Polya's steps, but the other can fulfill three indicators.

Predictive ability of problem-solving efficacy sources on mathematics achievement

<span>This study examined the relationship between mathematics achievement and mathematics problem-solving efficacy sources. A cluster sample of 123 first year prospective teachers of a Philippine higher education institution responded to a 30-item problem-solving efficacy scales and took the teacher-made tests in Mathematics in the Modern World course; namely, Non-Routine Problem Solving and Natures and Numbers Pattern Tracing (NRPS-NNPT), Math Language and Symbols (MLS), and Data Management (DM). The research data was analyzed using Descriptive statistics, Pearson-r and Standard Multiple Regression. On the average, the respondents had satisfactory mathematics achievement. They reported a high level of social persuasion and somatic response and a low level of vicarious experience and mastery experience in mathematics problem-solving. Vicarious experience was directly associated with mastery experience while social persuasion and mastery experience were both inversely related to somatic responses. Among the four problem-solving efficacy sources, only social persuasion significantly predicted mathematics achievement specifically in the areas of NRPS-NNPT, MLS, and DM. Thus, becoming a trusted voice of encouragement and designing a persuasive and optimistic learning environment are highly recommended roles of schools to facilitate students’ mathematics achievement.</span>

Scaffolding on Student Construction Errors in Mathematics Problem Solving

The Purpose of this study is to find out what forms of conceptual construction errors experienced by students in solving mathematical problems and the appropriate form of scaffolding for each concept construction error experienced. This type of research is descriptive qualitative research. In determining the subject of this study using purposive sampling technique. The research subjects were students of class XII, the subjects of this study were 6 people which were then reduced to 2 people representing medium and low abilities. The instruments used in this study were test questions and interview sheets. The data obtained were analyzed by the steps (1) Reducing the data. (2) presenting data and (3) drawing conclusions. The results of this study are that S1 experienced more “correct” pseudo construction errors and mis-logical construction with the scaffolding provided, namely level 2 (reviewing, explaining and restructuring) while S2 experienced four types of errors with the scaffolding provided, level 2 scaffolding. each individual will be different because it must be adjusted to the actual development zone of each.

Student's Mathematic Representation Ability in Mathematics Problem Solving on Triangle Materials

Penelitian ini menggambarkan secara deskriptif bagaimana kemampuan siswa SMP dalam menyelesaikan masalah berkaitan dengan kegiatan merepresentasikan gambar, simbol, dan verbal pada materi segitiga. Penelitian yang digunakan merupakan penelitian kualitatif dengan metode analisis deskriptif. Tahapan penelitian yang dilakukan yaitu 1) penentuan subjek penelitian, 2) penentuan instrumen penelitian, 3) pemberian soal kepada siswa, 3) pengumpulan data penelitian, 4) analisis data hasil penelitian. Hasil penelitian menunjukkan bahwa pada aspek representasi verbal, kemampuan representasi matematis siswa dalam menerjemahkan gambar ke dalam bentuk verbal sudah dimiliki siswa dengan semua tingkat kemampuan. Sedangkan kemampuan representasi siswa dalam mengungkapkan ekspresi verifikasi masih kurang. Pada representasi gambar, siswa dengan semua tingkat kemampuan sudah mampu mengungkapkan istilah yang berkaitan dengan gambar, sedangkan pada proses menggambarkan suatu gambar menggunakan kemampuan representasinya hanya siswa kemapuan tinggi yang mampu menyelesaikan permasalahan. Pada aspek kemampuan representasi simbolik, ketiga siswa sudah mampu mengoperasikan bentuk aljabar, meskipun pada salah satu siswa kurang teliti dalam proses penyelesaiannya yang mengakibatkan hasil yang dihitung tidak benar

Analisis Kemampuan Pemecahan Masalah Matematika Siswa Kelas IX SMP Ditinjau Dari Gender

The aim of this study was to describe the differences of students' problem-solving abilities in completing mathematics problem in the form of story-based problems in terms of gender difference. The type of research used is qualitative and quantitative descriptive research using research instruments, namely tests of problem-solving abilities and interview. Selection of subjects using a random cluster random technique, based on teacher considerations. The subjects in this study were 26 students of class IX of SMPN 8 Mataram in the academic year of 2020/2021. The data collection method started from making observations at school, then distributing the problem-solving ability test which contains 2 problems in the form of elaborative questions. AT the last stage, the researcher conducted interviews with 6 people who were obtained from each representative of the criteria for the test results of the problem-solving abilities that had been given. The data analysis technique in this study was conducted by looking at the test scores of mathematics problem-solving abilities seen from the criteria of high, moderate, and low. The results obtained were: (1) the ability of female students in grade IX at SMPN 8 Mataram to solve mathematics problems related to the statistical topic in form of story-based problems was in moderate criteria with the average score obtained was 73.44, (2) the ability of male students in grade IX at SMPN 8 Mataram to solve mathematics problems related to the statistical topic in form of story-based problems was in moderate criteria with the average score obtained was 77,64, and (3) the difference in problem-solving abilities of male and female students lies on the steps used in solving mathematics problems based on Polya problem solving stages.

Walking Away from a Mathematics Problem Is OK

Providing students the autonomy and choice to learn when productive struggle becomes unproductive is a core teaching belief in the author’s classroom. This article tells the story of one student’s ability to know and express when his frustration was too great and how he chose to walk away from his work and return the next day.