JOURNAL OF SONGKE MATH

PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STAD BERBANTUAN GEOGEBRA TERHADAP KEMAMPUAN KOMUNIKAS MATEMATIS SISWA SMP

Lisna Naldi — 2023-08-12

Penelitian ini dilakukan untuk menganalisis perbedaan kemampuan komunikasi matematis antara siswa yang diajarkan menggunakan model pembelajaran kooperatif tipe STAD berbantuan Geogebra dengan siswa yang mendapat pembelajaran konvensional. Metode yang digunakan adalah penelitian eksperimen semu dengan menggunakan desain posttest-only control group design. Populasi dalam penelitian seluruh siswa kelas VIII SMPN 5 Langke Rembong Manggarai NTT dengan jumlah 152 orang pada tahun ajara 2022/2023. Pengambilan sampel dilakukan dengan random kelas. Sampel penelitian pada kelas eksperimen yaitu kelas VIII B dan kelas VIII A yang berjumlah 29 siswa sebagai kelas kontrol. Instrumen yang digunakan dalam penelitian ini adalah tes uraian. Teknik analisis yang digunakan adalah dengan uji-t. Dari analisis data ditemukan bahwa model pembelajaran kooperatif tipe STAD berbantuan geogebra berpengaruh positif terhadap kemampuan komunikasi matematis siswa. Pembahasan tentang temuan baru dan kelemahan penelitian disajikan sebagai ide dasar untuk penelitian lebih lanjut.

(This research was conducted to analyze differences in mathematical communication skills between students who were taught using the STAD type cooperative learning model assisted by Geogebra and students who received conventional learning. The method used is quasi-experimental research using a posttest-only control group design. The population in the study were all Grade VIII students of SMPN 5 Langke Rembong Manggarai NTT with a total of 152 people in the 2022/2023 academic year. Sampling was done by random class. The research samples in the experimental class were class VIII B and class VIII A, totaling 29 students as the control class. The instrument used in this study is a description test. The analysis technique used is the t-test. From the data analysis it was found that the STAD type cooperative learning model assisted by Geogebra had a positive effect on students' mathematical communication skills. A discussion of the new findings and research weaknesses is presented as a basic idea for further research).

REFLECTIVE TEACHING DESIGN AND CASE ANALYSIS OF MATHEMATICS PROPOSITION COURSE IN MIDDLE SCHOOL—TAKE THE DECISION OF CONGRUENT TRIANGLE AS AN EXAMPLE

Zou Shuo — 2023-08-12

The theory of rethinking teaching originated from the European and American countries, and then it was paid attention to gradually in our country. Reflective teaching theory is an important means to enhance teachers' thinking ability and students' learning ability and improve teaching quality. Based on the overview of reflective teaching theory and its teaching strategies, the author discusses the teaching practice of reflective teaching theory in the middle school mathematics proposition lesson of the same triangle decision lesson, in order to provide reference for improving teachers' professional quality and students’ learning ability.

UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA MENGGUNAKAN MODEL PROBLEM-BASED LEARNING PADA MATERI TRANSLASI DAN REFLEKSI KELAS DI SMP

Teklaniati Gaudensia Lai Belos — 2023-08-12

Trend pembelajaran abad-21 adalah mengkondisikan siswa untuk dapat menyelesaikan masalah yang akan berguna dalam kehidupan sehari-hari. Harapan ini dapat dicapai melalui pembiasaan memecahkan masalah dalam pembelajaran yang direncanakan dengan sistematis. Sehubungan dengan itu tujuan penelitian ini adalah menganalisis peningkatan hasil belajar matematika siswa kelas IX Sekolah Menengah Pertama Katolik (SMPK) Santu Fransiskus Xaverius Ruteng menggunakan model problem-based learning (PBL). Materi yang manjadi focus analisis adalah translasi dan refleksi. Dalam mencapai tujian tersebut, penelitian tindakan kelas diterapkan sebagai bagian dari penelitian deskriptif dimana hasil belajar matematika dideskripsikan untuk tiap siklus dan dianalisis peningkatan tiap siklusnya. Dari hasil analisis deskriptif disimpulkan bahwa penerapan model PBL dapat meningkatkan hasil belajar matematika siswa pada materi translasi dan refleksi. Hal ini terlihat dari adanya peningkatan rerata pada tiap siklus. Dengan hasil ini direkomendasikan untuk menerapakn model pembelajaran serupa pada materi terkait lainnya.

(The 21st-century learning trend is to condition students to be able to solve problems that will be useful in everyday life. This hope can be achieved through the habit of solving problems in systematically planned learning. In this regard, the purpose of this study was to analyze the improvement in mathematics learning outcomes of class IX students at the Catholic Junior High School (SMPK) Santu Francis Xavier Ruteng using a problem-based learning model. The material that becomes the focus of the analysis is translation and reflection. In achieving this goal, classroom action research is applied as part of descriptive research where mathematics learning outcomes are described for each cycle and the improvement of each cycle is analyzed. From the results of the descriptive analysis, it was concluded that the application of problem-based learning models can improve students' mathematics learning outcomes in translation and reflection material. This can be seen from the average increase in each cycle. With these results, it is recommended to apply a similar learning model to other related materials).

PENGARUH PENERAPAN MODEL PEMBELAJARAN PENEMUAN TERBIMBING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA

Emilianus — 2023-08-12

Penelitian ini bertujuan untuk menganalisis perbedaan kemampuan pemecahan masalah matematis antara kelompok siswa yang diajarkan menggunakan model pembelajaran penemuan terbimbing dan yang menggunakan pembelajaran konvensional pada materi aritmatika sosial di kelas VII SMPK Immaculata Ruteng. Jenis penelitian ini adalah penelitian eksperimen semu dengan menggunakan Posttest-Only Control Group Design. Populasinya mencakup seluruh siswa kelas VII SMPK Immaculata Ruteng dengan jumlah 211 siswa. Teknik pengambilan sampel yang digunakan yaitu cluster random sampling. Instrumen yang digunakan untuk mengukur kemampuan pemecahan masalah matematis siswa yaitu instrument tes. Perbedaan kemampuan pemecahan masalah matematis siswa dianalisis menggunakan uji t dengan rumus polled varian. Berdasarkan hasil analisis data diperoleh bahwa kemampuan pemecahan amsalah matematis siswa di kelas eksperimen lebih baik dari pada siswa di kelas kontrol. Hal ini berkontribusi kepada literatur dan praktisi untuk mempertimbangkan penerapan model pembelajaran penemuan terbimbing dalam pembelajaran matematika dan studi lebih lanjut disarankan pada materi lainnya.

(This study aims to analyze differences in mathematical problem-solving abilities between groups of students who are taught using the guided discovery learning model and those who use conventional learning on social arithmetic material in class VII SMPK Immaculata Ruteng. This type of research is quasi-experimental research using the Posttest-Only Control Group Design. The population includes all class VII students of SMPK Immaculata Ruteng with a total of 211 students. The sampling technique used is cluster random sampling. The instrument used to measure students' mathematical problem solving abilities is the test instrument. Differences in students' mathematical problem solving abilities were analyzed using the t test with the polled variant formula. Based on the results of data analysis, it was found that the students' mathematical problem solving skills in the experimental class were better than those in the control class. This contributes to the literature and practitioners to consider the application of the guided discovery learning model in mathematics learning and suggested further study on other materials.).

RESEARCH AND DEVELOPMENT PROCESS OF PENETRATE CORE LITERACY-THE ROTATION AND TRANSFORMATION OF GRAPHICS AS AN EXAMPLE

Yuchan Su — 2023-08-23

This paper focuses on solving problems from line and difference problems, proving angle problems and common vertex problems using rotational transformation ideas to expand the problem-solving process and develop students' core literacy. After analyzing the mathematics test questions, it is not difficult to find that the rotation of a figure is often tested in a comprehensive expansion. The test questions focused on the problems related to angles or line segments when the figure is rotated to a particular position, integrating the dynamic geometry of change and invariance, geometric conjecture, drawing, reasoning, proof and calculation ability, as well as innovation and practical abilityof students' experience of the operation activities related to the transformation of a figure. The solution of such problems requires intuitive imagination, logical reasoning and mathematical literacy. After rotation, the figure and the original figure are congruent, therefore, the method of rotational change becomes a new way of thinking in solving mixed problems with complex figures, and it is easier for students to understand the idea of doing the problem by rotating and transforming the figure to construct auxiliary lines.