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Chimica Didactica
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Articles 20 Documents
PENGEMBANGAN INDIKATOR UNIVERSAL ALAMI UNTUK PENENTUAN pH LARUTAN PADA PEMBELAJARAN PENENTUAN DERAJAT KEASAMAN DI SMP/MTS Mayasri, Adean
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Abstract

Langkanya indikator universal sintetik di sekolah-sekolah mengakibatkan eksperimen penentuan derajat keasaman larutan tidak bisa dilakukan. Perlu adanya upaya lain untuk mengatasi masalah ini dengan mengembangkan indikator universal yang berasal dari bahan alam. Penelitian tentang Pengembangan Indikator Universal Bahan Alami untuk Penentuan pH Larutan pada Pembelajaran Penentuan Derajat Keasaman di SMP/MTs telah dilakukan. Tujuan dari penelitian ini adalah untuk mengetahui cara menyiapkan dan mengukur pH larutan dengan indikator universal bahan alami yang dilengkapi dengan prosedur penyiapan dan penuntun praktikum, serta melihat apakah prosedur kerja pada penuntun dapat dipraktikkan oleh guru. Subjek penelitian ini yaitu guru yang berjumlah 8 orang yang berasal dari SMPN 2 Banda Aceh, SMPN 6 Banda Aceh, SMPN 8 Banda Aceh, SMPN 14 Banda Aceh, SMPN 18 Banda Aceh, MTsN Rukoh Banda Aceh, dan 10 orang mahasiswa FKIP Kimia Unsyiah angkatan 2012 (semester 1). Metode yang digunakan meliputi pembuatan indikator universal bahan alami, penyusunan penuntun praktikum, dan melihat tanggapan guru dan mahasiswa. Indikator universal bahan alami dibuat dengan cara mengekstrak kunyit, bawang merah, kol ungu, dan ubi ungu dengan etanol 70%. Ke dalam ekstrak direndam kertas saring selama 5 menit dan dikeringkan. Kertas saring disusun ke dalam pipet sehingga menjadi indikator universal bahan alami. Hasil penelitian menunjukkan bahwa indikator universal dari bahan alami dapat digunakan untuk mengukur pH larutan. Menurut tanggapan guru dengan prosedur kerja dan penuntun yang ada, guru dapat membuat indikator sendiri dan dapat menerapkannya di kelas. Persentase tanggapan positif guru dan mahasiswa masing-masing sebesar 95,53% dan 98,57%. Hal ini menunjukkan indikator, penuntun, dan prosedur kerja ini bisa digunakan dalam pembelajaran.
PENERAPAN METODE TEAM TEACHING PADA MATERI IKATAN KIMIA UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS X SMAN 9 TUNAS BANGSA BANDA ACEH Hanum, Latifah
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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This descriptive qualitative study aims to determine the activities of students and teacher as well as the ability to improve student learning outcomes through the implementation of team teaching method in the concept of chemical bonds. The subjects were 32 students of class X-1 SMAN 9 Tunas Bangsa Banda Aceh consisting of 18 female and 14 male. The data was collected through observation of students’ activity and teacher’s activity in implementing team teaching methods as well as providing a test at the end of the meeting. Data obtained from the observation suggests that the activity of students at each meeting (1st, 2nd and 3rd) increase significantly at 66.07%, 76.79% and 87.5%. Based on the observation, the ability of teachers in the implementation of team teaching increased from 73.44% in first meeting to 81.25% in the second meeting and 90.63% in the third meeting. Learning outcomes of students also increased as follows 62.5% (1st meeting), 81.25% (2nd meeting) and 93.75% (3rd meeting). Based on the results of study, it is can be concluded that the implementation of team teaching method can improve learning outcomes as well as student activity and the ability of teachers to implementing instructional material in the chemical bonds at SMAN 9 Tunas Bangsa Banda Aceh
PENERAPAN PENDEKATAN SAINS TEKNOLOGI MASYARAKAT (STM) PADA MATERI KOLOID DI MAN KUTA BARO ACEH BESAR Fitri, Zarlaida
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Telah dilaksanakan penelitian tentang ”Penerapan Pendekatan Sains Teknologi Masyarakat (STM) pada materi Koloid di MAN Kuta Baro Aceh Besar Tahun Ajaran 2011/2012”. Penelitian ini bertujuan untuk mengetahui aktivitas siswa, hasil belajar dan tanggapan siswa terhadap pendekatan STM. Jenis penelitian ini yaitu deskriptif kualitatif dengan subjek penelitian yaitu siswa kelas XI-IA1 yang berjumlah 20 orang. Metode pengumpulan data dilakukan dengan cara observasi, tes tertulis, dan angket. Hasil penelitian menunjukkan bahwa siswa terlibat aktif dalam pembelajaran dimana aktivitas siswa meningkat dari 68,1% pada pertemuan pertama menjadi 77,9% pada pertemuan kedua. Siswa senang belajar materi koloid dengan menggunakan pendekatan STM sehingga hasil belajar siswa tuntas pada dua pertemuan dengan persentase secara klasikal 75% pada tes pertemuan pertama dan 85% tes pertemuan kedua. Persentase siswa yang memberikan tanggapan positif pada penerapan pendekatan STM sebesar 85% sedangkan 15% siswa memberikan tanggapan negatif. Berdasarkan hasil penelitian dapat disimpulkan bahwa aktivitas siswa meningkat, hasil belajar siswa tuntas secara klasikal dan siswa memberi tanggapan positif terhadap penerapan pendekatan STM pada materi koloid.
HUBUNGAN KEMAMPUAN BERPIKIR FORMAL PESERTA OLIMPIADE KIMIA DENGAN KEMAMPUAN MENYELESAIKAN SOAL OLIMPIADE KIMIA TINGKAT LOKAL DAN INTERNASIONAL Akbar, Said Ali
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Abstract

This research aimed to determine the relationship the relationship formal thinking skills of chemistry olympiad participants with problem solving skills the chemistry olympiad questions. The hypothesis in this research that there is a the relationship formal thinking skills of chemistry olympiad participants with problem solving skills the chemistry olympiad questions. The study population was all students from high school or MAN in Banda Aceh and Aceh Besar district participating in the Olympiad. The Sampling used purposive sampling, is the sample members selected by objective research. This research is a qualitative survey using a quantitative approach. The method used in this study is descriptive. The data was collected using a test instrument. In addition, interviews were also used as supporting data in the study. Processing quantitative data used Spearman rank correlation coefficient, while qualitative in percentage form. The results of the analysis obtained rs value about 0,94. Check the table of values r product moment with df of 14, at a significance level of 5% is obtained r table = 0,532, whereas the significance level of 1% is obtained r = 0,661 table. rs value is greater than the price r table, both at significance level of 5% (0,94 0,532), as well as the significant level of 1% (0,94 0,661). Thus, the alternative hypothesis (Ha) is accepted it means there is a strong positive correlation between the variables X and Y. Therefore, it can be concluded that the ability of formal influence Olympiad participants in solving problems.
MENINGKATKAN KETERAMPILAN DASAR MENGAJAR KIMIA MELAUI PEMBELAJARAN BERBASIS BOARD GAME (BGBL) Habiddin, Habiddin
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Abstract

The Course of Basic skills of teaching is provided to train chemistry education students in conducting an efficient and effective learning. These skills include set induction closure lesson skills and explaining skills. In the next globalization of education era, chemistry education students as the future chemistry teachers are expected to have a good skill in teaching in English. In fact, the limitations of their abilities and self-confidence to speak in English cause they did not apply the basic skills of teaching in English properly, especially when they have to explain chemistry concepts with analogies and told the interesting stories related to chemistry. To solve this problem, the design of learning to optimize student opportunities in practicing their speaking skills is the right solution. This learning design is called Board Game-Based Learning (BGBL). BGBL implementation is effective in improving students’ confidences in demonstrating their set induction closure lesson skills and explaining skills in teaching chemistry in English.
PENERAPAN PENDEKATAN SAINS TEKNOLOGI MASYARAKAT (STM) PADA MATERI KOLOID DI MAN KUTA BARO ACEH BESAR Fitri, Zarlaida
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Abstract

Telah dilaksanakan penelitian tentang ”Penerapan Pendekatan Sains Teknologi Masyarakat (STM) pada materi Koloid di MAN Kuta Baro Aceh Besar Tahun Ajaran 2011/2012”. Penelitian ini bertujuan untuk mengetahui aktivitas siswa, hasil belajar dan tanggapan siswa terhadap pendekatan STM. Jenis penelitian ini yaitu deskriptif kualitatif dengan subjek penelitian yaitu siswa kelas XI-IA1 yang berjumlah 20 orang. Metode pengumpulan data dilakukan dengan cara observasi, tes tertulis, dan angket. Hasil penelitian menunjukkan bahwa siswa terlibat aktif dalam pembelajaran dimana aktivitas siswa meningkat dari 68,1% pada pertemuan pertama menjadi 77,9% pada pertemuan kedua. Siswa senang belajar materi koloid dengan menggunakan pendekatan STM sehingga hasil belajar siswa tuntas pada dua pertemuan dengan persentase secara klasikal 75% pada tes pertemuan pertama dan 85% tes pertemuan kedua. Persentase siswa yang memberikan tanggapan positif pada penerapan pendekatan STM sebesar 85% sedangkan 15% siswa memberikan tanggapan negatif. Berdasarkan hasil penelitian dapat disimpulkan bahwa aktivitas siswa meningkat, hasil belajar siswa tuntas secara klasikal dan siswa memberi tanggapan positif terhadap penerapan pendekatan STM pada materi koloid.
SYNTHESIS OF 1,4-BENZODIAZEPINE THROUGH PHOTOCHEMICAL REACTION OF 3-PHENYL-3,6-DIHYDRO-[1,2]DIOXINE WITH ETHYLENDIAMINE Nazar, Muhammad
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Synthesis of 1,4-Benzodiazepine via reaction of ethylendiamine with 3-phenyl-1,2-dioxine has been carried out. The first step of this experiment was conversion of triphenyl phosphine to triphenyl metyl phosphine iodide which was then used to form phenyl butadiene from cinnamaldehyde. The synthesis of phenyl dioxine was done via photochemical reaction of phenyl butadiene with oxygen gas in the presence of tetraphenyl posphene. The coupling reaction between phenyl phosphine and ethylendiamine was carried out under atmospheric pressure at room temperature. All steps of these reactions were confirmed using TLC with appropriate eluents and the resulting compounds were purified using column chromatography. In addition, all products structure including phenyl dioxine and 1,4-benzodiazepine were determined using HNMR.
PENGEMBANGAN MODUL KOMPOS TERINTEGRASI KONSEP KIMIA SEBAGAI BAHAN AJAR UNTUK SISWA PROGRAM AGRIBISNIS TANAMAN PERKEBUNAN (ATP) SMKN ACEH TIMUR Jofrishal, Jofrishal
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Abstract

Learning curriculum in a vocational school combines the adaptive, normative and productive subject group. The adaptive, normative and productive subject groups are expected to be mutually supportive and complementary, in fact the group of subjects did not support each other. The purpose of this study is to develop a learning module for productive subject package (composting techniques) which is integrated by the concept of chemistry as one of the adaptive subjects in vocational school, another purpose of this study is to collect the responses of teachers and students on the module, the module quality assessment by experts, assessment of the portion of chemical concepts that integrated in the module by specialists and module effectivity test. The development of module is using the one of instructional development model in teaching materials development known as ADDIE model (analysis, design, development, implementation, evaluation). The results showed that 92% of teachers responded positively to the module, 85% of students responded positively . While the negative resposes from teacher wes 8% and 15% for student responses. The module quality assessment indicate score 3.36 which the criteria "good" and the expert assessment of chemical concepts are integrated in the module is 70% - 80%. The effectivity of module using student test results indicate the average grades is 92 which criteria "very good". The results suggest that the effectivity of the module is very good for learning.
PENINGKATAN PEMAHAMAN KONSEP IKATAN KIMIA MELALUI PERBAIKAN BAHAN AJAR Wibowo, Agus Mukti
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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Abstract

Most of the materials in chemical bond are abstract concepts such as ions, ionic radii and orbital. Concepts are considerably difficult to be studied by students who have not had formal thinking ability. This difficulty may be caused error concept, namely the concept of student understanding is different from the agreement by experts. One source of error is the concept of the textbooks used in the learning process. Inproper emplanation or inadequate chemical bonds in the material in the books or high school chemistry teaching materials can lead to errors in sudent. The remedial concept using materials that have been corrected his mistakes and shortcomings plus can reduce errors that occur in students' concept.
ANALISIS KEBUTUHAN PENGEMBANGAN MODEL PEMBELAJARAN KIMIA DIRECT INSTRUCTION BERORIENTASI THINKING INDUCTIVELY UNTUK MENUMBUHKAN LIFE SKILL PESERTA DIDIK Wisudawati, Asih Widi
Chimica Didactica Acta Vol 1, No 1 (2013)
Publisher : FKIP Unsyiah

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This study aims to analyze the needs of students and teachers in the learning process chemicals to be used for the development of Direct Instruction model of teaching chemistry Thinking inductively oriented to foster students' life skill. This study population is the entire SMA / MA in Yogyakarta. The samples are purposive sampling determined by taking into account the achievement of learning outcomes. The study sample consisted of 2 (two) MA, 7 (seven) SMA, 2 (two) private high school. Data was gathered from observation, interview guidelines and questionnaires. analyzed descriptively and interpretative, equipped crosscheck the data and data sources. conclusions of this study (1) has identified three (3) learning model commonly implemented by teachers in the learning process chemistry, (2) some of the barriers / obstacles in applying the model of learning-oriented thinking inductively, (3) life skills students have developed the maximum.

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