Fall festival fun

2012 ◽  
Vol 19 (3) ◽  
pp. 136-138

Wonderful opportunities to engage students in enjoying the beauty and products of the season, autumn celebrations are also ripe with themes for various mathematics problems and activities: pumpkins, hay rides, apples, scarecrows, and the changing colors of the leaves. To promote problem solving and critical thinking, the October problems are situated in the context of an elementary school's fall festival.

2018 ◽  
Vol 6 (1) ◽  
pp. 11 ◽  
Author(s):  
Sintha Sih Dewanti

Abstrak Tujuan penelitian ini adalah untuk mendeskripsikan profil berpikir kritis mahasiswa PGMI UIN Sunan Kalijaga Yogyakarta dalam memecahkan masalah matematika dasar. Pemecahan masalah merupakan proses mental tingkat tinggi dan memerlukan proses berpikir yang lebih kompleks termasuk berpikir kritis. Pemecahan masalah juga mempunyai hubungan timbal balik dengan berpikir kritis. Berpikir kritis pada penelitian ini mengacu pada berpikir kritis dengan kriteria FRISCO. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Pada penelitian ini diambil 9 subjek penelitian, yaitu 3 subjek pada kemampuan matematika dasar tinggi, sedang, dan rendah. Pengumpulan data dilakukan dengan pemberian soal pemecahan masalah dan wawancara. Ada 5 tipe masalah yang digunakan dalam soal pemecahan masalah yaitu: simple translation problem, complex translation problem, process problem, applied problem, dan puzzle problem. Profil berpikir kritis mahasiswa dalam memecahkan masalah matematika dasar menurut kriteria FRISCO pada setiap langkah pemecahan Polya sebagai berikut: a) Mahasiswa dengan KPM tinggi mengetahui fokus, alasan, situasi dan kejelasan dalam setiap tahap pemecahan masalah juga menjelaskan inferensinya pada setiap tahap pemecahan masalah Polya pada simple translation problem, complex translation problem, dan applied problem, tetapi belum dapat untuk 2 masalah lainnya; b) Mahasiswa dengan KPM sedang, mengetahui fokus, alasan, situasi dan kejelasan dalam setiap tahap pemecahan masalah juga menjelaskan inferensinya pada setiap tahap pemecahan masalah Polya pada simple translation problem dan applied problem tetapi belum dapat untuk 3 masalah lainnya; dan c) Mahasiswa dengan KPM rendah, mengetahui fokus, alasan, inferensi, situasi, klarifikasi dan memeriksa kembali pada setiap langkah pemecahan masalah Polya pada masalah simple translation problem, dan belum dapat pada puzzle problem, sedangkan untuk 3 masalah lainnya mengetahui fokus dan alasan hanya sampai pada langkah melaksanakan strategi, tetapi belum dapat mengetahui inferensinya. Kata kunci: berpikir kritis, pemecahan masalah, kemampuan matematika dasar Abstract The purpose of this research is to describe the critical thinking profile of PGMI UIN Sunan Kalijaga Yogyakarta students in solving basic mathematics problems. Problem solving is a high level mental process and requires a more complex thinking process including critical thinking. Problem solving also has a reciprocal relationship with critical thinking. Critical thinking in this study refers to critical thinking with the FRISCO criteria. The type of this research is descriptive research with qualitative approach. In this study, 9 subjects taken, that is 3 subject to the ability of high-basic mathematic, medium, and low. Data was collected by way of tests and interviews. There are 5 types of problems used in problem solving tests: simple translation problem, complex translation problem, problem process, applied problem, and puzzle problem. The profile of critical thinking of students in solving basic mathematics problems according to FRISCO criteria at each polya solving step as follows: a) Students with high problem solving abilitys know the focus, reason, situation and clarity in every problem solving step also explain the inferences at each stage of solving Polya problem on simple translation problem, complex translation problem, and applied problem, but not yet for 2 other problems; b) Students with medium problem solving abilitys know the focus, reason, situation and clarity in each stage of problem solving also explain the inferences at each stage of polya problem solving on simple translation problem and applied problem but not yet for the other 3 problems; and c) Students with low problem solving abilitys know the focus, reason, inference, situation, clarification and re-examine each step Polya problem solving on the problem of simple translation problem, and not yet in the puzzle problem, while for 3 other problems know the focus and reason only to the step of implementing the strategy, but not yet know the inferences. Keywords: critical thinking, problem solving, basic math ability


Author(s):  
Heinrich Osvaldo Ndahawali ◽  
Sri Hariyani ◽  
Nur Farida

This study aims to describe the critical thinking skills in solving math problems. The approach used in this research is qualitative research with descriptive research type. The research subjects were 32 students. The six interview subjects were divided into three levels of critical thinking, namely 2 high categories, 2 medium categories and 2 low categories. Data collection procedures are tests of critical thinking skills and interviews. Research data analysis refers to indicators of critical thinking, namely: interpreting, analyzing, evaluating and inferring. Student achievement on each indicator includes: 1) Percentage of students' ability to interpret the completion of the test questions by 65.5%; 2) The percentage of students' ability to analyze the completion of the test questions by 39.1%; 3) The percentage of students' ability to evaluate is 66.6%; and 4) Percentage of students' ability to infer by 40%. The ability of students to interpret a problem solving is good. Students have been able to write out what is known and asked in the problem correctly, but there are students who are less thorough and incomplete in writing the unit of distance. The ability of students to analyze problem solving is quite low. Students do not provide information on drawing illustrations. The ability of students in evaluating problem solving is good. Students are able to do the calculations correctly in accordance with the rubric of assessment. The ability of students to reference problem solving is low. Students are not used to writing the final conclusions of the answers obtained.


Author(s):  
Bayu Hari Prasojo ◽  
Novia Ariyanti

This descriptive study used a quantitative approach that aims at describing the students' critical thinking in solving business mathematics problems with respect to the origin of the school majors. Subjects were students of FEB management UMSIDA first half of the academic year 2016/2017. Data collection techniques in the form of tests to complete the Problem Solving Test (TPM) and the provision of critical thinking questionnaire relating to the work of students on TPM has been given. Data were analyzed using the average, percentage and Pearson Product Moment Correlation test (PPM). And the results showed that (1) the ability to solve business mathematics problems, student majoring in science studies is higher than the ability to solve mathematical problems business student majoring in social studies or student majoring in vocational school (2) critical thinking skills of students majoring in science studies, social studies and vocational school overall thinking ability critical successively shows the critical criterion, quite critical and critical enough (3) critical thinking skills of students at every step of Polya’s Problem Solving as follows: (a) at the stage Understanding the problem, a student of the science studies showed criteria please critical, a student of the social studies indicate criteria quite Critical and student of vocational school indicate the criteria fairly Critical (b) at the stage Make a Plan, a student of the science studies indicates the criteria fairly critical, a student of the social studies indicate criteria is quite critical and student of vocational school indicate the criteria fairly Critical (c) at the stage implement the plan, a student of the science studies showed criteria please Critical, a student of the social studies indicate criteria please Critical and student of vocational school indicate criteria please Critical (c) at the stage Checking Back, a student of the science studies indicates the criteria Critical, a student of the social studies show Critical criteria and student of vocational schools show the criteria, please Critical (4) there is a strong relationship between Business Mathematics problem Solving ability with Students Critical Thinking Skills. Keywords: evaluation of learning, realibility, discrimination power


2018 ◽  
Vol 1 (2) ◽  
pp. 64-69
Author(s):  
Amina Alobaidi

Background: PBL appears to answer many concerns regarding educational methods, encourages students to look for new solutions to relevant problems using available knowledge and resources. The process expands students' critical thinking and problem solving skills while enhancing their creative capabilities Objective: To develop a PBL modules for teaching of organic chemistry. Methods: This module was developed for implementation in the curriculum of Chemistry Departments in Colleges of Sciences and Education. This is an innovations to be developed for increasing the wide-ranging abilities of students. A series of strategies which are involved in PBL, concept mapping and online communications, are suggested and discussed in terms of encouraging student-centered learning.  


2017 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
St Fatimah Azzahra

ABSTRACTThis research is aimed to know the differences increase critical thinking skills through learning group and individual problem solving in thermochemical material. This research uses a quasi-experimental design with nonequivalent control group design and study sample consisted of 103 students, divided into the first experimental (group problem solving) (35 students), the two group experimental (individual problem solving) (34 students). The collected through pretest-posttest. The analyzed with the Kruskal Wallis test, the results showed that the learning problem solving as a group or individually can improve students’ critical thinking skills. Statistical test there are significant differences in the students critical thinking skills thermochemical material between students who received group and individual problem solving. Critical thinking skills improvement with problem solving individual learning higher compared with group learning problem solving.Keywords: problem solving learning, critical thinking skillsABSTRAKPenelitian ini bertujuan untuk mengetahui perbedaan peningkatan keterampilan berpikir kritis siswa melalui pembelajaran group dan individual problem solving pada materi termokimia. Penelitian ini menggunakan metode quasi experimen dengan desain Nonequivalent Control Group Design dan sampel penelitian ini terdiri dari 103 siswa yang terbagi ke dalam kelompok eksperimen pertama (pembelajaran group problem solving) (35 siswa), kelompok eksperimen kedua (pembelajaran individual problem solving) (34 siswa).Pengumpulan data dilakukan melalui pretest-posttest. Data dianalisis dengan uji Kruskal Wallis Test, hasil penelitian menunjukkan bahwa pembelajaran problem solving secara group maupun secara individual dapat meningkatkan keterampilan berpikir kritis siswa. Data uji statistik, terdapat perbedaan yang signifikan keterampilan berpikir kritis siswa pada materi termokimia antara siswa yang mendapat pembelajaran group problem solving dan individual problem solving. Peningkatan keterampilan berpikir kritis dengan pembelajaran individual problem solving lebih tinggi dibandingkan dengan pembelajaran group problem solving.Kata Kunci: Pembelajaran Problem Solving, Keterampilan Berpikir Kritis


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