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Efektivitas Pembelajaran Matematika dengan Strategi Pembelajaran Aktif Index Card Match (ICM) St. Syahdan; Abdul Arif
Laplace : Jurnal Pendidikan Matematika Vol 2 No 1 (2019)
Publisher : Program Studi Pendidikan Matematika IKIP PGRI Jember

This research is an experimental research which aim to know whether the active learning strategy index card match is more effective than expository learning strategy used learning mathematic for students in class VII State Islamic Junior High School at Pitumpanua, Wajo Regency. The design of the research used Posttest Control Group Design. In this research therean experimental group namely VIID class with 32 students which was taught using ICM active learning strategies and one groupcontrolnamely VIIE class with the same number students taught by expository learning strategy. Technique collection data used result of the learning tests, observation sheets for student activity, and questionnaire sheets for the student respond. Data analyzed used description statistic analyzed and statistic inferential analyzed. According to description statistic analyzed obtained:1) In the experimental group, the result of the mathematics learningobtained average of 74,16 with the deviation standard of 12.972 in the high criteria, while in the group control the average learning result of student amount 66,12 with the deviation standard 12,973 in the medium criteria. 2) Learning activities of students in the experimental group showed a positive attitude with a percentage of 58.04% and 51.45% in the control group. 3) The Student responses in the experimental learning group showed a positive response with percentage of 89.87% while in the control group 63.73%. Statistic inferential analyzed shows t count> t table (2.476> 1.67) with a significance of 5%, So we can conclude that the hypothesis is accepted it mean that learning mathematics in grade VII students of State Islamic Junior High School at Pitumpanua country of Wajo Regency through ICM active learning strategies is more effective than expository learning strategies

Peramalan Indeks Harga Konsumen (IHK) Kota Tarakan dengan Metode Double Exponential Smoothing dari Brown St Syahdan; Siti Aisyah
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 5, No 1: Maret - Agustus 2020
Publisher : Universitas Pesantren Tinggi Darul Ulum Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/jmpm.v5i1.1748

The Tarakan City Consumer Price Index (CPI) shows trend patterns. This research is applied research with the aim of determining the best parameters and forecast results of Tarakan City CPI from January to May 2019 with the Double Exponential Smoothing method from Brown. The results of the Tarakan City CPI forecasting with the best parameters 0,5 with MAPE value = 0,670 from January to May 2019, respectively are 147,652; 148,481; 149,309; 150,138 and 150,966. These results indicate that the forecast of CPI in Tarakan City has increased every month. The higher the CPI value, the faster the inflation rate will have an impact on the rising prices of goods and services. By knowing CPI forecasting that continues to increase, the purchase of inventory of goods and services can be accelerated in order to avoid purchasing higher inventory.

Solusi Numerik Model Epidemi Seir pada Penyebaran Tuberkulosis dengan Metode Dekomposisi Adomian Ratna Dwi Christyanti; St Syahdan
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 4, No 2: September 2019 - Februari 2020
Publisher : Universitas Pesantren Tinggi Darul Ulum Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/jmpm.v4i2.1677

Tuberkulosis (TB) merupakan penyakit menular yang menyerang paru-paru. Dalam program penanggulangan TB, sangat perlu diperhatikan jumlah pasien dengan hasil pengobatan lengkap, meninggal, gagal, default dan pindah. Pada artikel ini, dibangun sebuah model matematika yang menggambarkan tingkat penyebaran infeksi penyakit TB dengan menggunakan metode Dekomposisi Adomian. Kemudian melakukan simulasi terhadap model penyebaran penyakit tersebut. Tahapan metode penelitian meliputi membangun model epidemi SEIR untuk penyebaran penyakit TB; mencari solusi untuk penyebaran penyakit TB dengan menggunakan metode Dekomposisi Adomian; melakukan simulasi berbantuan perangkat lunak; menganalisis hasil simulasi; serta menyimpulkan perilaku model yang dianalisis tersebut. Dari hasil simulasi, ditemukan bahwa model ini cukup baik untuk menggambarkan penyebaran penyakit TB dengan menggunakan parameter yang bersesuaian.

THE EFFECTIVENESS OF THE IMPLEMENTATION OF EXPERIENCE, LANGUAGE, PICTORIAL, SYMBOL, AND APPLICATION (ELPSA) IN MATHEMATICS LEARNING BASED ON BRUNERS THEORY TO CLASS VII STUDENTS AT SMPN 29 IN MAKASSAR St Syahdan
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 4, No 2 (2016): Juli
Publisher : Universitas Negeri Makassar

The research is experiment. The research design is One-Group Pretest Posttest Design. The research employed two experiment classes, namely class VII.1 consist of 29 students and class VII.2 consist of 33 students chosen by using simple random sampling technique. Both classes were given the same treatment, namely experience, language, pictorial, symbol, and application in Mathematics learning based on Bruner’s theory. Data collecting techniques were learning result test, observation sheet, and questionnaire sheet. Data analysis employed descriptive statistic, inferential statistic, and effectiveness analysis. The results of the research indicate that: 1) Mathematics learning result of class VII students at SMPN 29 in Makassar after the implementation of experience, language, pictorial, symbol, and application in Mathematics learning based on Bruner’s theory is in high category, the improvement of Mathematics learning result (gain score) of class VII students at SMPN 29 in Makassar is significant and in high category. Mathematics learning result of class VII students at SMPN 29 in Makassar after the implementation of experience, language, pictorial, symbol, and application in Mathematics learning based on Bruner’s theory has not reached classical completeness; 2) the students activity with the implementation of experience, language, pictorial, symbol, and application in Mathematics learning based on Bruner’s theory is in active category; and 3) the students response toward the implementation of experience, language, pictorial, symbol, and application in Mathematics learning based on Bruner’s theory tended to be in positive category. Learning effectiveness score reveals that the implementation of experience, language, pictorial, symbol, and application is fairly effective in Mathematics learning based on Bruner’s theory to class VII students at SMPN 29 in Makassar

ANALISIS UJI KARAKTERISTIK BIOETANOL DARI PISANG HUTAN TERHADAP VARIASI MASSA RAGI Dady Sulaiman; St Syahdan; Siti Maria Ulva
Jurnal Kumparan Fisika Vol 4, No 3: Desember 2021
Publisher : Unib Press, Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jkf.4.3.169-176

Biomass is one of the solutions for Indonesia to obtain energy because Indonesia has the potential for biomass like biodiesel and bioethanol. The biomass to be studied is Bioethanol. One of the main ingredients in the manufacture of bioethanol is forest bananas, where this type of banana is very easy to find in rural areas around the district of Bulungan. Forest bananas are a type of wild plant that grows in the forest and it’s not consumed by residents because there are many seeds in the banana. Therefore, forest banana waste is increasing due to the lack of utilization of the waste. Based on these problems, it is necessary to conduct research that aims to test the characteristics of bioethanol from forest bananas to the variation of yeast mass. The stages of the research method that will be done include several stages, namely 1) the manufacture of bioethanol, 2) the stage of measuring ethanol levels, and 3) the stage of testing the characteristics of bioethanol. The stages of bioethanol testing are characteristic tests, including: 1) Ethanol Content Analysis, 2) Water Content Analysis, 3) Density Analysis, 4) Specific Gravity and API Gravity Analysis, 5) Heat Value Analysis. Based on the research results obtained, the quality of bioethanol produced has the value of density and specific gravity in accordance with the quality standard of bioethanol which is 0.78 in yeast 3% of raw materials. The caloric value that has a close relationship with API Gravity is close to the maximum value of the bioethanol quality standard which is 3702.30 kcal/kg in yeast of 5%. The value of the largest ethanol content was obtained at the total yeast content of 5% which is 24.8%. The lowest water content value is obtained at the total yeast content of 3% which is 75%.

Characteristics of Bioethanol from Musa Salaccensis ZOLL Dady Sulaiman; St Syahdan; Siti Maria Ulva
International Journal of Science and Society Vol 3 No 4 (2021): International Journal of Science and Society (IJSOC)
Publisher : GoAcademica Research & Publishing

The high increase in energy use causes renewable energy solutions such as wind energy, geothermal energy, biomass and others. Biomass is one solution for Indonesia to obtain energy, because Indonesia has the potential for biomass, both biodiesel and bioethanol. The biomass to be studied is Bioethanol. Forest banana is a type of wild plant that grows in the forests of North Kalimantan and is not consumed by residents because there are many seeds in the banana. The purpose of this study was to examine the characteristics of bioethanol from forest bananas. The stages of the research method that will be carried out include several stages, namely 1) making bioethanol, 2) measuring ethanol content, and 3) testing the characteristics of bioethanol. The stages of bioethanol testing carried out characteristic tests including: 1) Ethanol Content Analysis, 2) Moisture Content Analysis, 3) Density Analysis, 4) Specific Gravity and API Gravity Analysis, 5) Calorific Value Analysis. Based on the research results obtained, the quality of the bioethanol produced has a density value and specific gravity in accordance with the bioethanol quality standard, which is 0.46. The calorific value which has a close relationship with API Gravity is close to the maximum value in the bioethanol quality standard, which is 3702.30 kcal/kg. The value of ethanol content and water content still does not meet the quality standards, namely 24.8% and 86%. This is due to the lack of distillation process in this study.

Menghitung Determinan Suatu Matriks Ordo n Ã— n, n â‰¥ 3 Menggunakan Metode Kondensasi CHIO Berbantu Excel dan MATLAB Ratna Dwi Christyanti; St. Syahdan; Chuzaimah Chuzaimah
Jurnal Teknologi Informasi, Ilmu Komputer dan Manajemen Vol 1 No 2 (2017): Teknikom Vol. 1 No. 2 Tahun 2017
Publisher : LPPM STMIK Widya Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (909.472 KB)

Determinants are a function of the set of square matrices to the set of real numbers. The determinant of the matrix A denote | A | or det (A). In this discussion method used to solve the determinant of a matrix is the Chio Condensation method. The Chio Condensation Method is one method that can be used to evaluating the determinant of the order matrix n ÝŠÃ— n, ÝŠn â‰¥ 3 determinant in terms of (ÝŠ n âˆ’ 1) Ã— (ÝŠn âˆ’ 1) with Ü½a11 â‰ 0. Calculating the determinant of the matrix ÝŠ n ÝŠÃ— n, ÝŠn â‰¥ 3 with Chio Condensation method will be easier if it is assisted excel and Matlab.

Pelatihan Pembuatan Briket Berbahan Limbah Sekam Padi Sebagai Sumber Energi Alternatif Desa Sajau Hilir Ulva, Siti Maria; Sulaiman, Dady; Syahdan, St.; Sari, Ayu Lingga Ratna; Arif, Abdul; Christyanti, Ratna Dwi
Jurnal Pengabdian Masyarakat Bangsa Vol. 3 No. 4 (2025): Juni
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v3i4.2418

Limbah sekam padi memiliki potensi besar sebagai bahan baku energi alternatif, namun limbah dari proses pengolahan hasil pertanian yang melimpah ini belum dimanfaatkan secara optimal. Pembakaran langsung sekam padi sering menimbulkan polusi udara, sehingga perlu dilakukan pengolahan yang lebih ramah lingkungan. Salah satu solusinya adalah dengan mengolah sekam padi menjadi briket yang dapat digunakan sebagai sumber energi terbarukan. Artikel ini bertujuan untuk menjelaskan kegiatan pelatihan pembuatan briket berbahan limbah sekam padi sebagai upaya pemanfaatan limbah pertanian sekaligus pemberdayaan masyarakat Desa Sajau Hilir. Metode yang digunakan dalam kegiatan pengabdian ini adalah dengan dilakukannya pendekatan partisipatif yaitu demonstrasi teknik pembuatan briket, serta pendampingan teknis dalam proses produksi. Pelatihan dilakukan secara partisipatif agar terjadi transfer pengetahuan yang efektif kepada masyarakat. Hasil kegiatan menunjukkan bahwa peserta mampu memahami dan mempraktikkan pembuatan briket secara mandiri. Pelatihan ini memberikan dampak positif terhadap peningkatan kesadaran masyarakat mengenai energi alternatif serta potensi pemanfaatan limbah lokal sebagai solusi energi terbarukan di tingkat desa.

Penerapan Metode AHP (Analitic Hierarchy Process) pada Rekomendasi Rumah Kost Mahasiswa (Studi Kasus : Universitas Kaltara) Aisyah, Siti; Syahdan, St.; Kartina, Kartina; Merang, K. Rapiandi Isak
CARTESIUS : Jurnal Pendidikan Matematika Vol 8 No.1 Tahun 2025
Publisher : Unika Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Rumah kos merupakan salah satu kebutuhan bagi mahasiswa yang sedang menempuh ilmu di daerah lain dari luar kampung halaman. Banyak faktor yang perlu dipertimbangkan oleh mahasiswa sebelum memilih rumah kost tersebut. Tujuan dari penelitian ini yaitu dapat memberikan kemudahan bagi mahasiswa dalam mendapatkan informasi berupa rekomendasi rumah kost terbaik secara subjektif, dimana prosesnya menggunakan kombinasi metode Analytic Hierarchy Process dalam penentuan nilai bobot preferensinya. Kriteria yang dijadikan sebagai patokan pendukung keputusan yaitu biaya sewa, fasilitas, jarak. Hasil dari perhitungan metode AHP didapatkan rekomendasi rumah kost dengan skor tertinggi yaitu kost Kost Pagar Hijau yang berada di Gang Mandala depan Kampus Universitas Kaltara. Rekomendasi ini menghasilkan kriteria dengan biaya yang relatif murah dengan fasilitas lengkap, namun berlokasi jauh dari kampus dengan estimasi jarak 400-700 meter

Penerapan Metode AHP (Analitic Hierarchy Process) pada Rekomendasi Rumah Kost Mahasiswa (Studi Kasus : Universitas Kaltara) Aisyah, Siti; Syahdan, St.; Kartina, Kartina; Merang, K. Rapiandi Isak
CARTESIUS : Jurnal Pendidikan Matematika Vol 8 No.1 Tahun 2025
Publisher : Unika Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Rumah kos merupakan salah satu kebutuhan bagi mahasiswa yang sedang menempuh ilmu di daerah lain dari luar kampung halaman. Banyak faktor yang perlu dipertimbangkan oleh mahasiswa sebelum memilih rumah kost tersebut. Tujuan dari penelitian ini yaitu dapat memberikan kemudahan bagi mahasiswa dalam mendapatkan informasi berupa rekomendasi rumah kost terbaik secara subjektif, dimana prosesnya menggunakan kombinasi metode Analytic Hierarchy Process dalam penentuan nilai bobot preferensinya. Kriteria yang dijadikan sebagai patokan pendukung keputusan yaitu biaya sewa, fasilitas, jarak. Hasil dari perhitungan metode AHP didapatkan rekomendasi rumah kost dengan skor tertinggi yaitu kost Kost Pagar Hijau yang berada di Gang Mandala depan Kampus Universitas Kaltara. Rekomendasi ini menghasilkan kriteria dengan biaya yang relatif murah dengan fasilitas lengkap, namun berlokasi jauh dari kampus dengan estimasi jarak 400-700 meter

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