Keefektifan pembelajaran berbasis proyek ditinjau dari prestasi belajar, kemampuan berpikir kritis, dan kepercayaan diri siswa

Tujuan penelitian ini untuk mendeskripsikan keefektifan pembelajaran berbasis proyek pada materi statistika ditinjau dari prestasi belajar, kemampuan berpikir kritis, dan kepercayaan diri siswa SMP kelas VII. Pembelajaran berbasis proyek terdiri dari enam langkah yaitu: (1) penentuan proyek; (2) perancangan langkah-langkah penyelesaian proyek; (3) penyusunan jadwal pelaksanaan proyek; (4) penyelesaian proyek dengan fasilitasi dan monitoring guru; (5) penyusunan laporan dan presentasi/publikasi hasil proyek; dan (6) evaluasi dan hasil proyek. Populasi dalam penelitian ini adalah siswa kelas VII SMPN 1 Yogyakarta. Instrumen yang digunakan adalah tes prestasi belajar, tes kemampuan berpikir kritis, angket kepercayaan diri, dan lembar observasi keterlaksanaan pembelajaran. Uji hipotesis menggunakan uji proporsi Z pada taraf signifikan 95% (α = 5%). Berdasarkan hasil uji hipotesis diperoleh proporsi siswa yang prestasi belajarnya telah mencapai KKM lebih dari 75%. Proporsi siswa yang memiliki kemampuan berpikir kritis dan kepercayaan diri pada kategori minimal “baik” lebih dari 75%. Dengan demikian dapat disimpulkan bahwa pembelajaran berbasis proyek efektif ditinjau dari prestasi belajar, kemampuan berpikir kritis, dan kepercayaan diri siswa. The effectiveness of project-based learning viewed from students’ learning achievement, critical thinking skill, and self-confidenceAbstractThe purpose of this study was to describe the effectiveness of project-based learning in statistical material viewed from learning achievement, critical thinking skills, and self-confidence of seventh-grade junior high school students. Project-based learning consists of six steps: (1) determining the project; (2) designing project completion steps; (3) preparing the project implementation schedule; (4) completion of the project with facilitation and monitoring from the teacher; (5) preparation of reports and presentation/ publication of project results; and (6) evaluation and results of the project. The population in this study was seventh-grade students of SMP 1 Yogyakarta, Indonesia. The instruments used were a learning achievement test, a critical thinking ability test, a self-confidence questionnaire, and an observation sheet of learning accomplishments. Hypothesis testing uses the proportion Z test at a significant level of 95% (α = 5%). Based on the results of the hypothesis test, the proportion of students who have learning achievement reached KKM was more than 75%. The proportion of students who have critical thinking skills and self-confidence in the minimum category of "good" was more than 75%. Thus it could be concluded that project-based learning was an effective view from students’ learning achievement, critical thinking skills, and self-confidence.

What the high school students say about mathematics homework

Homework had become a tradition in teaching and learning mathematics in school. Even so, in Indonesia, there is not enough research on homework. Our research is conducted to investigate high school students’ views on homework and to provide the basis for further research on homework in Indonesia. In this research, we use exploratory-descriptive qualitative to explore and describe the students’ view of homework. We collected the data from 124 high school students by using the structured interview conducted via online form. The data were analyzed by using the thematic analysis. Based on our results, we found that (1) students know that mathematics homework can help them with their academic achievement and their attitudes toward their studies, (2) mathematics homework is not high on their priority, (3) it makes them tired physically and mentally, and (4) students argue that mathematics problems are better to be solved in the class where they can ask the teacher. We also found their difficulties in doing their homework, such as (1) lack of knowledge (2) their teachers do not give them the necessary ‘tools’ to solve the problems, (3) they can’t ask for helping hands if they can’t solve the problems (4) some emotional problems such as motivation, and (5) other priorities are higher on their list.

Developing augmented reality in mathematics learning: The challenges and strategies

One of the technologies developed massively in learning is Augmented Reality (AR) technology. This research will explain the challenges of teachers in developing AR-assisted learning media and strategies to anticipate the challenges that arise in developing AR-assisted learning media. This type of research is qualitative phenomenological research. The participants of this research were 75 Mathematics teachers who joined the developing AR-assisted learning media training. The teachers came from various regions in Indonesia. The mathematics teachers invited were 36 junior high school teachers and 29 senior high school teachers from public and private schools who were vulnerable at the age of 22-35 years and 27 teacher is male and the others are female. They have attended an AR-assisted media development training because have interested in AR and education. The data collection used is a questionnaire and an interview which is done to all participants and data analyzed using the Bogdan & Biklen model. The results of the research show that the challenges encountered by the teacher are meeting the minimum standards of hardware and software, limited references both sourced from humans, online media or print media. Efforts made by teachers to overcome existing problems such as gradually upgrading laptops, finding sources from foreign languages and trying to form joint learning communities.

Hubungan kemampuan koneksi matematika, rasa ingin tahu dan self-efficacy dengan kemampuan penalaran matematika

Penelitian ini bertujuan untuk mendeskripsikan hubungan kemampuan koneksi matematika, rasa ingin tahu, dan self-efficacy dengan kemampuan penalaran matematis siswa SMA. Penelitian ini merupakan penelitian kuantitatif dengan jenis penelitian ex post facto. Populasi penelitian mencakup seluruh siswa kelas X di Kabupaten Brebes. Sampel adalah 362 siswa yang berasal dari enam sekolah di Kabupaten Brebes ditentukan dengan stratified propotional random sampling technique. Pengumpulan data dilakukan menggunakan tes dan angket dengan skala likert. Teknik analisis data yang digunakan adalah analisis linier ganda dan analisis korelasi parsial. Hasil penelitian menunjukkan bahwa kemampuan koneksi matematis, rasa ingin tahu, dan self-efficacy secara bersama-sama berhubungan dengan kemampuan penalaran matematika siswa SMA, dimana kontribusi yang diberikan sebesar 46,3%, serta persamaan regresi yang diperoleh yaitu Y = 0,97 + 0,422X1 + 0,059 X2 + 0,041 X3. Hubungan antara kemampuan koneksi matematis (X1) dengan kemampuan penalaran (Y) dengan kontribusi sebesar 23,27%. Hubungan antara rasa ingin tahu (X2) dengan kemampuan penalaran dengan kontribusi sebesar 3,59%. Hubungan antara self-efficacy (X3) dengan kemampuan penalaran dengan kontribusi sebesar 1,81%. Relationship between mathematical connection ability, curiosity, and self-efficacy with mathematical reasoning abilityAbstractThis study aimed to describe the relationship between mathematical connection ability, curiosity, and self-efficacy and the mathematical reasoning ability of senior high school students. This study was a quantitative ex post facto study. The population comprised all tenth-grade students of senior high school in Brebes District, Indonesia. The sample was 362 students from six schools that were established using the stratified proportional random sampling technique. The data were collected through a test and Likert-scale questionnaires. The data were analyzed using multiple regression and partial correlation analysis. The results showed that mathematical connection ability, curiosity, and self-efficacy, as an aggregate correlated with mathematical reasoning ability, with a contribution of 46,3% obtained by the regression model Y = 0.97 + 0.422X1 + 0.059 X2 + 0.041 X3. The relationship between mathematical connection and mathematical reasoning ability with the contribution of 23.27%. The relationship between curiosity and mathematical reasoning ability with the contribution of 3.59%. The relationship between self-efficacy and mathematical reasoning ability with the contribution of 1.81%.

Kemampuan proses matematis siswa Kalimantan Timur dalam menyelesaikan soal matematika model PISA

Penelitian ini bertujuan untuk mendeskripsikan kemampuan proses matematis siswa Kalimantan Timur dalam menyelesaikan soal matematika model PISA (Programme for International Students Assessment). Penelitian ini dilakukan terhadap 300 siswa kelas IX SMP Kalimantan Timur yang belum pernah mewakili Indonesia sebagai sampel PISA bidang Matematika. Siswa tersebut tersebar dari tiga level sekolah (rendah, sedang, tinggi) yang ditentukan berdasarkan hasil Ujian Nasional 2016 pada mata pelajaran matematika. Pengumpulan data menggunakan 16 butir soal matematika model PISA (α = 0,835) yang mencakup tiga proses matematis: formulate, employ dan interpret. Kemampuan siswa dianalisis berdasarkan mean measure logit dan selanjutnya ditransformasi ke skala dan level kemampuan matematika PISA, sehingga dapat dibandingkan dengan rata-rata kemampuan siswa Indonesia dan negara OECD dalam studi PISA. Hasil analisis data menunjukkan bahwa kemampuan siswa Kalimantan Timur berada di bawah rata-rata negara OECD. Namun hasil tersebut lebih baik dibandingkan capaian skor siswa Indonesia yang menjadi sampel pada PISA 2015. Berdasarkan kemampuan dalam proses matematis, kemampuan siswa dari level tinggi ke rendah berturut-turut adalah formulate, employ dan interpret. Selain itu, kemampuan proses formulate siswa Kalimantan Timur dari sekolah kategori tinggi di atas rata-rata negara OECD. East kalimantan students’ mathematical process proficiency in solving PISA-like mathematicsAbstractThis study was aimed to describes East Kalimantan students’ mathematical processes proficiency in solving a PISA-like mathematics test. The study was carried out with 300 East Kalimantan ninth-grade students who haven’t represented Indonesia as Mathematics PISA samples. The students were spread across three school levels (low, medium, high) determined based on the results of the 2016 National Examination in mathematics. Data collection uses 16 items of PISA-like mathematics test (α = 0.835) which includes three mathematical processes: formulate, employ, and interpret. Student proficiency was analyzed based on mean measure logit and subsequently transformed to the scale and level of PISA mathematics proficiency so that it can be compared with the average proficiency of Indonesian students and OECD countries in the PISA study. The results of the data analysis show that the average proficiency of East Kalimantan students is below the average of OECD countries. However, these results are better than the average score of Indonesian students who were sampled at PISA 2015. Based on proficiency in the mathematical process, the proficiency of students from high to low levels consecutively namely: formulate, employ, and interpret. In addition, proficiency in the formulating of East Kalimantan students from high-level schools is above the average of OECD countries.

Profil kemampuan berpikir kreatif matematis ditinjau dari gaya kognitif reflective dan impulsive

Penelitian ini bertujuan untuk mendeskripsikan profil kemampuan berpikir kreatif matematis mahasiswa calon guru dalam menyelesaikan masalah open-ended ditinjau dari gaya kognitif reflective dan impulsive. Penelitian ini adalah penelitian deskriptif kualitatif. Subjek penelitian ini adalah mahasiswa calon guru pada Program Studi Pendidikan matematika, Universitas Muhammadiyah Prof. DR. HAMKA yang diambil menggunakan teknik purposive sampling. Validasi data menggunakan teknik triangulasi waktu. Data dianalisis menggunakan metode perbandingan tetap (constant comparative method) dengan langkah (1) reduksi data dan kategorisasi, (2) penyajian data; dan (3) penarikan kesimpulan dan verifikasi. Hasil penelitian menunjukkan bahwa dari empat indikator kemampuan berpikir kreatif matematis, mahasiswa dengan gaya kognitif reflective mampu memenuhi aspek kelancaran dan keterincian, yaitu menjawab soal dengan lebih lancar, mampu menjelaskan hubungan sebab akibat antar konsep yang digunakan, serta lebih rinci dan runtut dalam menjawab dan menjelaskan jawaban tertulisnya, dibandingkan dengan mahasiswa dengan gaya kognitif impulsive. Indikator aspek keluwesan dan kebaruan masih belum bisa terpenuhi karena mahasiswa dengan gaya kognitif reflective dan impulsive baru mampu menjawab pertanyaan menggunakan satu cara saja dan belum menggunakan strategi baru. Profile of mathematical creative thinking ability viewed from reflective and impulsive cognitive style AbstractThe study aimed to describe mathematical creative thinking ability profiles of prospective students in solving open-ended problems in terms of reflective and impulsive cognitive styles. The research classified as a qualitative descriptive study. The subjects of this study were prospective students of the Mathematics Education Department, Universitas Muhammadiyah Prof. DR. HAMKA and selected using a purposive sampling technique. For data validation, we used time triangulation techniques. Data were analyzed using the constant comparison method with steps (1) data reduction and categorization; (2) data presentation; and (3) conclusions and verification. The results showed that from the four indicators of mathematical creative thinking, students with reflective cognitive style were able to fulfill fluency and detail aspects in answering questions, explain causal relationships between concepts used, and more detail in written answers, compared to students with impulsive cognitive style. The indicators of flexibility and originality aspects of both students with the reflective and impulsive cognitive style are still cannot be fulfilled because they only answer questions using one method without using a new strategy.

Efektivitas guided discovery menggunakan pendekatan kontekstual ditinjau dari kemampuan berpikir kritis, prestasi, dan self-efficacy

Penelitian ini bertujuan untuk mendeskripsikan perbedaan keefektifan guided discovery meggunakan pendekatan kontekstual dan konvensional ditinjau dari kemampuan berpikir kritis, prestasi belajar, dan self-efficacy matematika siswa SMP. Jenis penelitian ini adalah quasi-experiment dengan pretest-posttest nonequivalent group design. Populasi dalam penelitian ini adalah siswa kelas VIII SMP Negeri di Kontukowun, kabupaten Muna dan kelas VIII-1 dan Kelas VIII-2 dipilih secara acak sebagai sampel. Untuk mengetahui keefektifan guided discovery menggunakan pendekatan kontekstual dan konvensional menggunakan uji one sample t-test, sedangkan untuk perbedaan keefektifan metode pembelajaran menggunakan uji two group manova. Jika terdapat perbedaan maka dilanjutkan dengan uji perbandingan menggunakan independent sample t-test. Hasilnya menunjukkan bahwa guided discovery menggunakan pendekatan kontekstual efektif ditinjau dari kemampuan berpikir kritis, prestasi belajar, dan self-efficacy; metode konvensional tidak efektif ditinjau dari kemampuan berpikir kritis, prestasi belajar, dan self-efficacy; dan guided discovery menggunakan pendekatan kontekstual lebih efektif dibandingkan konvensional ditinjau dari kemampuan berpikir kritis, prestasi belajar, dan self-efficacy. The effectiveness of guided discovery using the contextual approach in terms of critical thinking ability, achievement, and self-efficacyAbstractThe aim of the study aims to describe the effectiveness of guided discovery using the contextual approach in terms of critical thinking ability, learning achievement and self-efficacy in the mathematics of junior high school students. The study was quasi-experiment with pretest-posttest nonequivalent group design method. The population in this research was all 8th-grade students from one public junior high school in Kontukowuna, Muna Regency, Indonesia and class VIII-1 and VIII-2 were randomly selected as a sample. One sample t-test was used to determine the effectiveness of the guided discovery using the contextual approach and the conventional method. Whereas, two groups of Manova was used to know the difference between the learning methods. Then, if the result showed there is a significant difference between the two classes, the independent sample t-test was administered. Result of the study indicates that the guided discovery using the contextual approach is effective in terms of critical thinking ability, learning achievement, and self-efficacy; the conventional method is not effective in terms of critical thinking ability, learning achievement, and self-efficacy; and the guided discovery using contextual approach is more effective than conventional in terms of critical thinking ability, learning achievement, and self-efficacy.

Level penalaran proporsional siswa dalam memecahkan missing value problem

Tujuan penelitian deskriptif kualitatif ini adalah untuk mendeskripsikan level penalaran proporsional siswa kelas VIII SMP dalam memecahkan masalah satu nilai yang tidak diketahui (missing value problem). Instrumen penelitian ini berupa lembar tugas tentang masalah satu nilai yang tidak diketahui yang telah di validasi. Subjek penelitian ini adalah siswa kelas VIII SMP Negeri 1 Kalipare Malang dengan jumlah 33 siswa. Prosedur pengambilan data diawali dengan siswa diminta mengerjakan instrumen penelitian. Setelah mendapat data hasil pekerjaan siswa, dipilih tiga siswa sebagai subjek penelitian untuk dilakukan wawancara dengan tingkat penalaran proporsional yang berbeda. Hasil penelitian menunjukkan bahwa penalaran proporsional siswa berada pada level 0, level transisi 0 ke 2, dan level 4. Pada level 0, siswa memecahkan masalah satu nilai yang tidak diketahui menggunakan selisih dan sembarang operasi. Pada level transisi dari 0 ke 2, siswa memecahkan masalah satu nilai yang tidak diketahui menggunakan selisih kemudian beralih menggunakan cara membangun kedua ukuran (building both measure). Pada level 4, siswa memecahkan masalah satu nilai yang tidak diketahui hanya menggunakan aturan perkalian silang. Level of student’s proportional reasoning in solving missing value problemAbstractThe purpose of this qualitative descriptive study was to describe the level of proportional reasoning eighth-grade students in solving the problem of the unknown values. This research instrument was an assignment sheet about a missing value problem that validated. The subjects of this research were students of class VIII of SMP Negeri 1 (State Junior High School) Kalipare, Malang, Indonesia, with a total of 33 students. Data collection procedures begin with students being asked to do research instruments. After obtaining data on student work, three students selected as research subjects for interviews with different proportional levels of reasoning. The results showed that students' proportional reasoning was at level 0, transition level 0 to 2, and level 4. At level 0, students solved the problem of missing value problem using differences and arbitrary operations. At the transition level from 0 to 2, students solve the problem of missing value problem using the difference and then switch to using building both measure methods. At level 4, students solve the problem of one unknown value using only the rules of cross multiplication.

Pembelajaran model creative problem-solving untuk mendukung higher-order thinking skills berdasarkan tingkat disposisi matematis

Penelitian ini bertujuan untuk mendeskripsikan pengaruh model creative problem solving terhadap higher-order thinking skills ditinjau dari tingkat disposisi matematis siswa. Jenis penelitian ini adalah kuasi eksperimen menggunakan posttest only non-equivalent control group design. Populasi penelitian ini adalah seluruh siswa kelas XI MIPA di salah satu SMA Negeri di Kendari. Dua kelas dipilih secara purposive sampling sebagai sampel penelitian, yaitu kelas XI-MIPA 1 sebagai kelas eksperimen dan XI-MIPA 3 sebagai kelas kontrol. Instrumen penelitian yang digunakan pada penelitian ini adalah tes higher-order thinking skills dan angket disposisi matematis. Hasil penelitian menunjukkan bahwa rata-rata higher-order thinking skills siswa yang belajar dengan model creative problem solving lebih baik dari siswa yang belajar dengan pendekatan saintifik, sedangkan jika ditinjau dari tingkat disposisi matematis, siswa yang tingkat disposisi matematisnya tinggi memiliki rata-rata higher-order thinking skills yang lebih baik dibanding siswa yang tingkat disposisinya sedang dan rendah. Namun, tidak terdapat pengaruh interaksi antara model pembelajaran dan tingkat disposisi matematis terhadap rata-rata higher-order thinking skills siswa. Creative problem-solving learning model to promote higher-order thinking skills based on the level of mathematical dispositionAbstractThis study aims to describe the effect of the creative problem-solving model on higher-order thinking skills in terms of students' mathematical disposition levels. This research was a quasi-experimental study using a posttest only non-equivalent control group design. The population of this research was all students of 11th grade in one of public senior higher school in Kendari, Indonesia. Two classes were chosen by purposive sampling as the samples of this study that is XI-MIPA 1 as the experimental class and XI-MIPA 3 as the control class. The instruments used in this study were a higher-order thinking skills test and a mathematical disposition questionnaire. The results of this study show that the mean of higher-order thinking skills of students who studied with creative problem-solving models was better than students who studied with a scientific approach, while from the level of mathematical disposition, students with higher-level mathematical dispositions have better mean higher-order thinking skills than students with moderate and low disposition level. However, there is no effect of interaction between learning models and the level of mathematical disposition to the average higher-order thinking skills of students.

Kualitas butir bank soal statistika (Studi kasus: Instrumen ujian akhir mata kuliah statistika Universitas Terbuka)

Penelitian ini bertujuan untuk mendeksripsikan kualitas butir soal ujian akhir semester mata kuliah statistika ekonomi yang dikembangkan oleh Universitas Terbuka (UT) sebagai dasar dalam mengembangkan bank soal yang terkalibrasi menggunakan pendekatan Teori Respons Butir. Penelitian ini merupakan penelitian deskriptif kuantitatif. Sumber data penelitian ini adalah pola jawaban mahasiswa UT yang telah mengikuti ujian akhir semester (UAS) mata kuliah statistika ekonomi selama enam masa ujian, dengan ukuran sampel sebanyak 23334 mahasiswa. Hasil penelitian ini menunjukkan bahwa butir-butir soal ujian akhir semester mata kuliah statistika ekonomi yang dikembangkan UT: (1) terbukti valid secara konstruk, yakni hanya mengukur satu faktor dominan, yaitu kemampuan statistika ekonomi; (2) memiliki kehandalan yang baik dengan nilai koefisien reliabilitas empiris lebih dari 0,70 (koefisien reliabilitas empiris = 0,7335); (3) dari 140 butir soal yang dikalibrasi terdapat 108 butir soal (25 butir soal berkualitas baik atau tanpa revisi dan 83 butir soal berkualitas kurang baik atau perlu revisi) yang layak disimpan dalam bank soal, sedangkan 32 butir soal berkualitas tidak baik; dan (4) mampu memberikan informasi akurat terkait kemampuan statistika ekonomi mahasiswa pada level kemampuan yang tinggi (-1,3 sampai +4,0). Quality of statistical test bank items (Case study: Final exam instrument of statistics courses in Universitas Terbuka) AbstractThis study aims to determine the quality of final semester test items of economic statistics course that was developed by Universitas Terbuka (UT) as a basis for developing calibrated item banks using Item Response Theory. This research uses a quantitative descriptive approach. The researcher investigates the answer pattern of the final semester exam (UAS) in the economic statistics course during six periods of the final exams. The sample size in this study was 23334 students. The results of this study indicate that the final semester exam items of economic statistics courses developed by UT: (1) proved to construct valid, i.e. only measure one dominant factor, namely the ability of economic statistics; (2) has good reliability with empirical reliability coefficient values more than 0.70 (empirical reliability coefficient = 0.7335); (3) of the 140 items calibrated there are 108 items (25 items of good quality or without revision and 83 items of poor quality or need to be revised) that are worth keeping in the question bank, while 32 items of quality are not good; and (4) able to provide accurate information related to students' economic statistical abilities at a high level of ability (-1.3 to +4.0)