scholarly journals Pembelajaran Penjumlahan dan Pengurangan Bilangan Dua Digit secara Simultan untuk Mengembangkan Intuisi Bilangan Siswa

2021 ◽  
Vol 4 (1) ◽  
pp. 31-40
Author(s):  
Ratih Ayu Apsari ◽  
Sariyasa Sariyasa ◽  
I Gusti Putu Suharta ◽  
Baidowi Baidowi ◽  
Tabita Wahyu Triutami

The learning of addition and subtraction that usually be done in sequence impact students’ tendency to separate type of the strategies employ to solve the related problems. In fact, there are a number of situations that can be observed and solved through both lenses. Therefore, in this study we designed a simultaneous addition and subtraction of two-digit numbers learning trajectory. The learning activities were constructed based on Realistic Mathematics Education (RME) Approach. This design study was conducted in three steps consist of preliminary study, teaching experiments, and retrospective analysis. The teaching experiments were done in two cycle, the first was done with four students and the second was done with 33 students in two classes of an elementary school located in Singaraja, Bali. The data related to number sense ability were gathered from observation and students’ written work in solving worksheet and post-test. The collected data were analyzed using constant comparative method. From the results, we found that a simultaneous learning of two-digit numbers addition and subtraction were effectively develop the students’ number sense and encourage the students to develop efficient counting strategies.

2012 ◽  
Vol 43 (4) ◽  
pp. 428-464 ◽  
Author(s):  
Michelle Stephan ◽  
Didem Akyuz

This article presents the results of a 7th-grade classroom teaching experiment that supported students' understanding of integer addition and subtraction. The experiment was conducted to test and revise a hypothetical learning trajectory so as to propose a potential instructional theory for integer addition and subtraction. The instructional sequence, which was based on a financial context, was designed using the Realistic Mathematics Education theory. Additionally, an empty, vertical number line (VNL) is posited as a potentially viable model to support students' organizing their addition and subtraction strategies. Particular emphasis is placed on the mathematical practices that were established in this setting. These practices indicate that students can successfully draw on their experiences with assets, debts, and net worths to create meaning for integer addition and subtraction.


2020 ◽  
Vol 4 (2) ◽  
pp. 100
Author(s):  
Maryati Maryati ◽  
Rully Charitas Indra Prahmana

An essential part of learning transformation geometry is rotation. Before learning more about other parts of the transformation geometry topic, such as translation, dilation, and reflection, firstly, students are required to understand well about rotation. However, several students have not been able to understand this subject properly due to the stages of learning in the rotation has not been appropriately arranged. Thus, this study aims to design a student learning trajectory in learning rotation, which develop from informal to formal level through the Indonesian Realistic Mathematics Education (IRME) approach. Furthermore, researchers used a design research method divided into three stages, namely preliminary design, design experiments, and retrospective analysis. This study describes how the bamboo woven motif contributes significantly to 31 ninth-grade students understanding the rotation concept. As a result, the woven bamboo motif's context can stimulate students' understanding of rotation. It is proven based on the strategies and models of students during their learning process which contributes to their fundamental knowledge of rotation.


2019 ◽  
Vol 3 (1) ◽  
pp. 27
Author(s):  
Dodi Ardiansah ◽  
Mia Yusmianti ◽  
Anugrah Ramadhan Firdaus

This study aims to explain the application of realistic mathematics education in addition and subtraction mathematics learning in class III of SDN 1 Sudimampir, one of the low motivation of students to learn mathematics addition and subtraction is caused by learning activities that are more teacher-centered, so students are less actively involved in the learning process and result in monotonous learning activities in the classroom. Based on the above problems, improvements can be made to increase motivation to learn mathematics using realistic mathematics education. population and sample in the study focused on class III students, the method used in this study was the experimental method. The data collection technique is to provide learning and working on the problem, then grouping values based on the results of student performance in working on mathematical questions, arranged based on group distribution data for more specific value distribution into the mean median mode and graphs in order to find out the results of applying realistic mathematical methods education is expected to increase students 'motivation to learn mathematics, from the study there was a significant increase in the mean score of students' scores in mathematics learning addition and subtraction, namely ± 67,57.


2019 ◽  
Vol 1 (4) ◽  
pp. 37-44
Author(s):  
Asep Budiyono ◽  
Widya Kusumaningsih ◽  
Irkham Ulil Albab

Penelitian ini bertujuan untuk mengetahui peran Hypothetical Learning Trajectory(HLT)dalam membantu siswa dalam memahami konsep luas lingkaran serta mengetahui strategi yang digunakan oleh siswa terhadap Hypothetical Learning Trajectory(HLT) yang diberikan. Penelitian ini dilaksanakan di SMP Negeri 3 Petarukan, Kabupaten Pemalang. Subjek penelitian adalah siswa kelas VIII, dengan melalui 2 tahap yaitu pilot experiment melibatkan 6 siswa dari kelas VIII C dan dilanjutkan teaching experiment yang melibatkan 30 siswa dari kelas VIII B. Penelitian ini menggunakan metode design research yang didalamnya terdapat HLT yang memegang peranan sangat penting sebagai desain dan instrumen penelitian. Pembelajaran dalam penelitian ini menggunakan konteks peralatan dapur yaitu gelas, piring dan mangkuk sesuai dengan karakteristik dari RME. Hasil Penelitian menunjukkan bahwa Hypothetical Learning Trajectory (HLT) dapatmembantu siswa 1) membuat potongan juring lingkaran dan mengubahnya menjadi sebuah bangun datar baru yaitu trapesium, 2) menemukan sendiri konsep luas lingkaran dengan pendekatan trapesium, 3) menyelesaikan permasalahan dalam kehidupan sehari-hari yang berkaitan dengan konsep luas lingkaran. Adapun strategi yang digunakan siswa yaitu 1)mensketsakan permukaan perlatan dapur berupa lingkaran, 2) membandingan keliling dan diameter lingkaran untuk memperoleh nilai phi, 3)menyusun juring menjadi trapesium dan memformulasikan konsep luas lingkaran, 4) menerapkan konsep luas lingkaran.


Author(s):  
Syarifudin Syarifudin

The development of this student book uses the Thiagarajan development model. The development of this model has four stages: definition, planning, development, and dissemination. In addition, the development of students' books is based on realistic mathematics education (PMR), especially on contextual issues, the use of models, and guided discovery. Subsequently the student's book has validated experts and practitioners to be tested in the classroom. Expert and practitioner scores were 3.46 (very valid). Furthermore, it was tested in the classroom in order to see the practicality and effectiveness. Practicality of students' books is measured through the implementation of learning in the learning process. Student book implementation data as a whole is 'high categorized'. Student book effectiveness is measured through three indicators: (1) student activity, (2) student response, and (3) mastery learning. Through classroom tests, data on students' activity observation outcomes during the learning process as a whole are 'active criteria'. Students give a positive response. Post-test data found that none of the students scored under 65% of the standard learning objectives to be achieved. Furthermore, if seen classically obtained an average of 83.1%.


Author(s):  
Hesti Rokhaniyah

The research is the action research aimed at investigating to what extent Reciprocal Teaching overcomes learners’ barriers to effective listening and identifying the situation of teaching and learning when Reciprocal Teaching is employed. Several techniques: interview, observation, and test were applied to obtain the data. The mean score of two raters was calculated to derive the qualitative data; Constant Comparative Method was implemented to analyze the qualitative data. The research result showed Reciprocal Teaching implementation could overcome learners’ barrier to listening including detecting the keywords; recognizing grammar and vocabularies; and discriminating distinctive sounds. The enhancement of Reciprocal Teaching illustrated form mean score of pre-test was 37.4; post-test 1 was 70.4; and post-test 2 was 81. The use of Reciprocal Teaching also optimized the class situation: learners felt encouraged to be receptive to communication in active listening; they got freedom to mind their ideas; and they were more engaged to do mutual task. Considering the finding of the research, the lectures are recommended to use this research for guiding heir learners to solve listening barrier through Reciprocal Teaching.


2020 ◽  
Vol 4 (1) ◽  
pp. 37-43
Author(s):  
Nur Azmi

Penelitian ini bertujuan untuk mengkaji penerapan pendekatan RME berbasis budaya Aceh terhadap peningkatan hasil belajar matematika dan aktivitas siswa. Penelitian ini dikategorikan sebagai penelitian kuantitatif dengan menggunakan deskriptif dan statistik inferensial. Desain penelitian ini berbentuk pre-test post-test control group design, dengan populasi seluruh siswa kelas II SD Negeri 2 Kota Lhokseumawe, dengan mengambil sampel dua kelas (kelas eksprimen dan kelas kontrol) melalui teknik random sampling. Pengumpulan data dilakukan dengan dua jenis instrumen yaitu tes dan non tes. Tes meliputi soal untuk mengukur hasil belajar matematika siswa, dan non-tes berupa  data observer terhadap aktivitas siswa pada pembelajaran matematika realistik berbasis budaya Aceh. Uji statistik yang digunakan dalam penelitian ini adalah statistik deskriptif untuk menyajikan data dan statistik inferensial ANOVA dua jalur. Sebelum ANOVA dua jalur digunakan terlebih dahulu dilakukan uji homogenitas dan normalitas dengan taraf signifikan 5%. Untuk melihat adanya pengaruh peningkatan hasil belajar matematika siswa antara kelompok pemebelajaran matematika realistik berbasis budaya Aceh dengan kelompok konvensional digunakan uji-t pada taraf signifikansi 0,05. Berdasarkan hasil penelitian, diperoleh bahwa 1) Peningkatan hasil belajar matematika siswa yang memperoleh pedekatan pembelajaran matematika realistik berbasis budaya Aceh lebih tinggi daripada peningkatan hasil belajar matematika siswa yang memperoleh pembelajaran biasa / konvensional. (2)Tidak terdapat interaksi antara pendekatan pembelajaran dengan kemampuan awal yang dimiliki siswa (3)  Aktivitas siswa dengan pembelajaran matematika realistik berbasis budaya Aceh lebih aktif dan meningkat serta siswa memberi respon positif.


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