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All Journal Jurnal Inovasi Pendidikan IPA EduChemia (Jurnal Kimia dan Pendidikan)
Indah Langitasari
Universitas Sultan Ageng Tirtayasa
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics

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Implementasi pendekatan science writing heuristic pada laporan praktikum berbasis multipel representasi terhadap kemampuan interpretasi Nur Sa'adah; Indah Langitasari; Imas Eva Wijayanti
Jurnal Inovasi Pendidikan IPA Vol 6, No 2: October 2020
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipi.v6i2.31078

Abstract

Kemampuan interpretasi merupakan bagian dari kemampuan berpikir tingkat tinggi yang penting dimiliki oleh siswa untuk dapat menafsirkan dan menyimpulkan perolehan data agar siswa dapat memahami maknanya dengan baik. Kemampuan interpretasi siswa tergolong masih kurang sehingga diperlukan adanya pendekatan pembelajaran yang tepat. Penelitian ini bertujuan untuk mengetahui kemampuan interpretasi yang dimiliki siswa dalam laporan praktikum dengan format SWH yang melibatkan penggunaan kemampuan multipel representasi kimia pada konsep asam basa. Penelitian ini menggunakan desain penelitian deskriptif kuantitatif dengan melibatkan dua kelompok subjek yaitu eksperimen dan kontrol pada siswa kelas XI MIA. Hasil penelitian menunjukkan bahwa kemampuan interpretasi siswa dengan pendekatan SWH secara keseluruhan dikatakan baik yaitu dapat melatih kemampuan interpretasi siswa, meskipun tidak diperoleh peningkatan hasil penelitian. Implikasi penerapan pendekatan ini mampu mendorong siswa untuk menggunakan kemampuan multipel representasi kimia yang sekaligus dapat mengindikasikan kemampuan interpretasi siswa. Implementation of science writing heuristic approach in practicum reports based on multiple representations on interpretation skills AbstractInterpretation skills are part of high-order thinking skills that are important to have by students in order to interpret and conclude the acquistion of datas that students are can understand the meaning of the datas in good. The students’ interpretation skills are still less, so needed the right learning approach. This research aims to determine the interpretation skills of students in the SWH format practicum report which involves multiple representations in chemistry on the acid-base concepts. The research used the quantitative descriptive design involving two groups of a subject are experiment and control were students of class XI MIA. The results showed that students’ interpretation skills with the SWH approach as a whole got to be good it’s able to train students’ interpretation skills even didn’t get an improvement of research results. Implication application of this approach was able to encourage students to use multiple representations skill in chemistry which to can indicated students’ interpretation skills.
Analisis Kemampuan Awal Multi Level Representasi Mahasiswa Tingkat I pada Konsep Reaksi Redoks Indah Langitasari
EduChemia (Jurnal Kimia dan Pendidikan) Vol 1, No 1 (2016): Available Online in January 2016
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.153 KB) | DOI: 10.30870/educhemia.v1i1.436

Abstract

Abstract: Analysis of students’ initial ability before teaching the chemistry concept are very important to determine the correct techniques in learning concept. The objectives of this study was to identify the first year students’ initial ability to describe and explain redox reactions concept using macroscopic, submicroscopic and symbolic representation. This study applies pre-experimental research design involving a group of subjects. The diagnostic instrument consists of 15 items two-tier multiple choice and 2 items essay. Data were analyzed descriptively by tabulating students’ answers of each question. The results showed that the first year students’ initial understanding to the redox reactions concept was very low. Students have not been able to describe and explain the observed redox reactions (macroscopic) in terms of the atoms, molecules and ions that were involved in the reactions. This results also indicated the first year students’ symbolic and microscopic understanding very limited and only 2.9 % of students were able to make the connection between macroscopic observations, symbolic and submicroscopic representation .Keywords:  Initial ability, Redox reaction, Multiple levels of representationAbstrak: Analisis tingkat pemahaman awal mahasiswa sebelum mengajarkan konsep kimia sangat penting agar dapat menentukan teknik yang tepat dalam pembelajaran konsep.  Penelitian ini bertujuan untuk menguji kemampuan awal mahasiswa tingkat I dalam mendeskripsikan dan menjelaskan konsep reaksi redoks menggunakan representasi makroskopik, submikroskopik dan simbolik. Penelitian ini menggunakan desain penelitian pra-eksperimental dengan melibatkan satu kelompok subjek. Instrumen tes terdiri dari 15 soal two tier dan 2 soal essay. Data hasil penelitian dianalisis secara deskriptif dengan mentabulasikan jawaban mahasiswa untuk masing-masing item soal. Hasil penelitian menunjukkan bahwa pemahaman awal mahasiswa tingkat I terhadap konsep reaksi redoks masih tergolong sangat rendah. Mahasiswa belum mampu mendeskripsikan dan menjelaskan hasil pengamatan reaksi redoks (makroskopik) dalam bentuk atom, molekul, dan ion yang terlibat dalam reaksi. Hal ini mengindikasikan bahwa pemahaman simbolik dan submikroskopik mahasiswa tingkat I masih sangat terbatas dan hanya 2,9% mahasiswa yang mampu membuat hubungan antara pengamatan makroskopik, representasi simbolik dan gambaran submikroskopik.Kata kunci:  Kemampuan awal, Reaksi redoks, Multi level representasi
Implementation of IMWR (Inspiring-Modeling-Writing-Reporting) scaffolding on students cognitive learning outcome in the stoichiometry topic Indah Langitasari; Ratna Sari Siti Aisyah; Siti Elis Sya'adah
Jurnal Inovasi Pendidikan IPA Vol 9, No 1: April 2023
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipi.v8i1.38803

Abstract

Stoichiometry is one of the essential chemistry topics that is an abstract concept, involves complex calculations, and is related to other chemical concepts. It can cause not a few students to have difficulty learning it. Scaffolding is needed in the learning process of stoichiometry concepts to help students understand concepts more easily and improve learning outcomes. This research aims to determine differences in students' cognitive learning outcomes on the stoichiometry topic after implementing the IMWR scaffolding model. This research used experimental research with the one-group pretest-postest design. Respondents were 32 high school students who were determined by purposive sampling. The instrument test consisted of 32 items of essays that were valid and reliable. Data is collected and carried out through pretest and posttest. The differences in students' cognitive learning outcomes were analyzed descriptively using the N-gain test and statistical analysis using the paired sample t-test. The paired sample t-test showed a significance value of 0.000 (sig. 0.05), meaning there were differences in student learning outcomes after implementing the IMWR Scaffolding learning model. However, the resulting difference is not significant and is in a low category (N-gain 0.27). Implementing IMWR scaffolding needs to be designed as best as possible by paying attention to students' character to help students understand the concept using procedural knowledge, which impacts better learning outcomes.
Co-Authors Imas Eva Wijayanti Nur Sa'adah Ratna Sari Siti Aisyah Siti Elis Sya'adah