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.

Analysis of Mathematics Problem Solving Ability of Junior High School Students in Solving Problems in Online Learning

This study aims to determine the mathematical problem solving ability of students in solving story problems with online learning. The method in this study used a qualitative descriptive research method. The results showed that there were differences in the ability to identify the elements that were known and asked, there were differences in the ability to choose and apply strategies or problem solving procedures and there were differences in the ability to examine and explain the results or answers according to problems between students with high, medium mathematical problem solving abilities. and low. There are 43% of students who have been able to follow and adapt online learning while 57% of other students have difficulty understanding the material being taught. There are 60.86% of students who have a high enough enthusiasm in online learning (online) but 39.13% of students are not happy if learning mathematics is done online due to factors that influence it such as technical constraints. There are 73.91% of students with a positive response to the problem of mathematical problem solving ability even though the learning is carried out online and 26.08% of students with a negative response.

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.

Constructing mental diagrams during problem-solving in mathematics

In mathematics, problem-solving can be considered to be one of the most important skills students need to develop, because it allows them to deal with increasingly intricate mathematical and real-life issues. Often, teachers attempt to try to link a problem with a drawn diagram or picture. Despite these diagrams, whether given or constructed, the student still individually engages in a private discourse about the problem and its solution. These discourses are strongly influenced by their a priori knowledge and the given information in the problem itself. This article explores first-year pre-service teachers’ mental problem-solving skills. The emphasis was not on whether they solved the problems, but rather on their natural instincts during the problem-solving process. The research shows that some students were naturally drawn to construct mental images during the problem-solving process while others were content to simply leave the question blank. The data were collected from 35 first-year volunteer students attending a second semester geometry module. The data were collected using task sheets on Google Forms and interviews, which were based on responses to the questions. An interpretive qualitative analysis was conducted in order to produce deeper meaning (insight). The findings point to the fact that teachers could try to influence how students think during the problem-solving process by encouraging them to engage with mental images.

ANALYSIS ON STUDENTS’ MATHEMATICS ACHIEVEMENT BASED ON LEARNING STYLES

This descriptive and comparative study aims to see the students learning styles and mathematics achievements. The respondent are fifty junior high school students in Lembang, West Bandung, Indonesia. The research instruments are Perceptual Learning Style Preference Questionnaire (PLSPQ) and mathematics problem solving test. The result of this study are: (1) Only twenty percent of the students have exactly one learning style and most of the students has kinesthetic learning style; (2) Students who have three or less major learning styles perform good mathematics achievement, and students who have minor learning styles only, perform better mathematics achievements averagely, comparing with students who have major learning styles; (3) Students perform better mathematics achievement when they have more than one learning style, (4) There is no significant difference in the students’ mathematics achievement, between students who have three or less major learning styles and students who have more than three major learning styles.

Students' Learning Difficulties Review from Mathematics Problem-Solving Ability in Third-Grade Elementary School

Difficulty in the calculation process. It has an impact on low mathematics learning outcomes for students. This study aims to analyze students' learning difficulties in terms of mathematical problem-solving abilities in grade III elementary school fractions. This type of research is descriptive qualitative research. The subjects taken were six students—data obtained through interviews, tests, and documentation. The instrument used to analyze the data is a questionnaire. The technique used to analyze the data is descriptive qualitative and quantitative analysis. The study results are that students have a score on the aspect of understanding the problem of 50 (33.3%) in the medium difficulty category. The planning aspect has a score of 34 (22.60%) (great difficulty). Implementing the plan has a score of 95 (63.30%) (low difficulty). The re-checking aspect has a score of 98 (65.30%), which is in the low difficulty category. The difficulty is due to the lack of understanding of the questions, errors in determining the correct strategy to solve the problems and difficulties in the calculation process, and the child's low grasping power.

NONSTANDARD MATH WORD PROBLEMS AND ANALYSIS OF THE PARTIAL STAGES OF ITS SOLUTION

Choosing the right strategy is an important condition to successfully solve math problems. Research studies often present individual types of strategies more or less separately. This study aims to determine student solutions of selected word problems in the whole context of the solution process. In this context, such nonstandard word problems combine verbal formulation and the character of nonstandard problems (impossible to be solved using an algorithm). In order to get an overall picture of the stages of word problem solution, an analysis of solving a given word problem was conducted among 171 respondents aged 10-11. The analysis was conducted in compliance with partial steps of word problem processing, as the solving of the problem was viewed from a wider perspective. The student’s reaction to the problem, working with the given information, individual forms of solution, and answer formation were recorded. In order to have a more complex idea and possibility to compare, the chosen way of solving the problem was also presented to a selected sample of 26 teachers. Available solutions were analyzed, and there were sought ways how the solution was assessed by the teachers based on selected parameters. Especially their meta-cognitive estimation of the correctness of their own solution was subject to scrutiny. Despite the fact that the respondents chose different strategies of solution (graphic, arithmetical, using judgment, etc.), it appears that the success rate of solving the given nonstandard word problem was very low. Thus, it is necessary to implement such word problems into standard math lessons, also within pre-graduate teacher preparation. Keywords: mathematics teaching, primary school mathematics, problem-solving, prospective teachers, word problem