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All Journal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya JPIn : Jurnal Pendidik Indonesia Bakti Cendana: Jurnal Pengabdian Masyarakat International Journal of Management Science and Information Technology (IJMSIT)
Lestari, Windy
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Metode Trend Moment untuk Prediksi Data Trend Naik Brata, Adika Setia; Ramadhani, Ramadhani; Lestari, Windy; Rahmawati, Suci
SAINTIFIK Vol 11 No 1 (2025): Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/saintifik.v11i1.562

Abstract

Non-oil and gas exports are exports carried out outside the gas and oil sectors. Some examples of Indonesia's non-oil and gas export commodities are: Coffee beans, Tea, Spices, Tobacco, Cocoa beans, Shrimp, Textiles, Processed wood products, Palm oil, Chemicals, and others. Export activities are one component of aggregate expenditure because exports can affect the level of national income to be achieved. If exports increase, aggregate expenditure will increase and will then stimulate a country's economic growth. This value can be predicted using the trend moment method which is developed for upward trend data patterns. The stages of this method explain the problem of predicting the Value of Non-Oil and Gas Exports in 2023-2024 using the trend moment method. This method is carried out by looking at the trend line in past data and then applying mathematical principles to the stages of the calculation processes. The test results show that the accuracy of the trend moment prediction model in the 2023-2024 Non-Oil and Gas Export Value data is classified as good with a good Mean absolute percentage Error (MAPE) calculation percentage.
Bimbingan Belajar Gratis Mata Pelajaran Matematika Tingkat SD di Yayasan Kencana Bakti Semesta (YKBS) Badung Bali Rahmawati, Suci; Chonnaniyah, Chonnaniyah; Lestari, Windy
Bakti Cendana Vol 6 No 1 (2023): Bakti Cendana: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/bc.6.1.2023.70-76

Abstract

Parents' hope for their children pursuing formal education is to get maximum test scores and graduate with good grades. Thus, some efforts are made by parents to increase children's understanding of learning. Non-formal education at tutoring institutions is one of the parents' efforts. However, not all parents can provide tutoring facilities through non-formal institutions. Concrete steps are needed from various elements of society to overcome these problems, one of which is a lecturer. Lecturers carry out community service (PKM) by giving free mathematics tutoring at the elementary level within the Badung Bali Kencana Bakti Semesta Foundation (YKBS). The PKM aims to develop good learning habits, increase learning motivation, and increase learning achievement in mathematics. Tutoring is carried out 14 times, held on Wednesdays and Saturdays. The material provided refers to the students' textbooks and worksheets. A series of activity methods, namely (1) warming up through giving motivation to learn (2) explaining the material, (3) questions and answers, (4) quiz, (5) giving gifts, (6) giving post-test. The PKM activity can improve students' learning outcomes, as shown by the post-test results. The development of student motivation also shows good results, shown by the enthusiasm of students who ask for continuous tutoring activities.
Pengembangan Lembar Kerja Siswa (LKS) Berbasis Pendekatan Saintifik untuk Memfasilitasi Kemampuan Pemahaman Konsep Matematika Siswa Kelas VII SMP Muhammadiyah 2 Gamping Azis, Azizah; Setiani, Farida; Rahmawati, Suci; Anhar, Alfian; Lestari, Windy
Jurnal Pendidik Indonesia (JPIn) Vol 7, No 1: April 2024
Publisher : Yayasan Pendidikan Intan Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47165/jpin.v7i1.653

Abstract

Penelitian ini bertujuan untuk mengetahui proses pengembangan bahan ajar berupa Lembar Kerja Siswa (LKS) berbasis pendekatan saintifik untuk memfasilitasi kemampuan pemahaman konsep matematika pada materi bilangan pecahan untuk siswa SMP kelas VII dan untuk mengetahui kualitas LKS ditinjau dari segi kevalidan, kepraktisan, dan keefektifan.. Jenis penelitian ini adalah penelitian pengembangan. Pengembangan LKS mengikuti prosedur ADDIE yang terdiri dari 5 tahapan yaitu analysis, design, development, implementation, dan evaluation. Kualitas LKS dideskripsikan berdasarkan hasil penelitian kevalidan isi LKS oleh ahli materi dan ahli media. Aspek kepraktisan LKS diukur menggunakan hasil penilaian angket respon siswa dan lembar keterlaksanaan pembelajaran. Sedangkan untuk mengukur aspek keefektifan LKS menggunakan hasil tes kemampuan pemahaman konsep matematika. LKS berbasis pendekatan saintifik untuk memfasilitasi kemampuan pemahaman konsep dikembangkan dengan prosedur ADDIE dan telah memenuhi kriteria valid, praktis, dan efektif. LKS dinyatakan valid oleh ahli materi dengan skor rata-rata 3,3 dan ahli media dengan skor rata-rata 3,1 yang termasuk kriteria baik. LKS dinyatakan praktis ditunjukkan oleh rata-rata skor angket respon siswa sebesar 2,9 yang termasuk kriteria baik dan ditunjukkan oleh rata-rata keterlaksanaan pembelajaran sebesar 21,5 yang termasuk kriteria sangat baik. LKS dinyatakan efektif dari hasil tes kemampuan pemahaman konsep matematika yang memperoleh rata-rata ketuntasan dari keseluruhan indikator kemampuan pemahaman konsep matematika sebesar 73,02 yang termasuk kriteria baik.
Pelatihan dasar SPSS untuk menunjang penelitian tindakan kelas bagi guru MA Kalifa Nusantara Denpasar Bali Lestari, Windy; Anhar, Alfian; Brata, Adika Setia; Rahmawati, Suci; Mandasari, Erlinda
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 4 (2025): Juli
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i4.32249

Abstract

AbstrakPendidikan mempunyai peran yang penting dalam membangun peradaban bangsa demi mewujudkan Indonesia Emas, seperti tertuang dalam 17 target Pembangunan Berkelanjutan. Dalam rangka meningkatkan mutu pendidikan dan profesionalisme guru, salah satu upaya yang dapat dilakukan adalah melalui Penelitian Tindakan Kelas (PTK). Agar PTK dapat dilakukan secara objektif, efektif, dan terukur, diperlukan pemahaman yang baik terhadap konsep statistika dan alat bantu pengolah data, seperti SPSS. Kegiatan pengabdian ini bertujuan untuk meningkatkan pemahaman dan pengetahuan guru MA Kalifa Nusantara Denpasar Bali tentang statistika dan meningkatkan keterampilan dalam menggunakan software SPSS untuk menunjang pelaksanaan PTK. Metode pelaksanaan kegiatan ini yaitu dengan pelatihan yang dilakukan secara luring atau tatap muka yang terdiri dari penyampaian materi berupa ceramah lisan dan praktik pengolahan data dengan software SPSS, dan dievaluasi melalui pretest dan posttest. Hasil penelitian menunjukkan bahwa pelatihan dapat meningkatkan kemampuan mengolah data dengan statistika deskriptif menggunakan software SPSS dibuktikan dengan pengujian hipotesis rata-rata dua sample berpasangan dengan p-value sebesar 0,025 yang lebih kecil dari taraf signifikan (α) 5%. Kata kunci: pelatihan; SPSS; penelitian tindakan kelas; statistika; pendidikan. AbstractEducation has an important role in building the nation's civilization in order to realize the Golden Indonesia, as stated in the 17 Sustainable Development Goals. In an effort to improve the quality of education and professionalism of teachers, one approach that can be taken is through Classroom Action Research (CAR). To ensure that CAR is conducter objectively, effectively, and measurably, a good understanding of statistical concepts and processing tools such as SPSS is required. This community service activity aims to improve the understanding and knowledge of teachers at  MA Kalifa Nusantara Denpasar Bali, regarding statistics and to improve their skills in using SPSS to support the implementation of CAR. The program was carried out through offline or face-to-face training, consisting of lectures and hands-on data analysis using SPSS, and evaluated through pretest and posttest assessments. The results showed that the training significantly improved teachers’ ability to process data using descriptive statistics with SPSS, as evidenced by a paired sample t test that produced a p-value of 0.025, which is smaller than the 5% significance level (α). Keywords: training; SPSS; classroom action research; statistics; education.
Cluster of Foreign Tourists Using the K-Means Method Based on Arrival Data at I Gusti Ngurah Rai Airport (2018-2024) Rozy, Fahrur; Setia Brata, Adika; Lestari, Windy; Rahmawati, Suci
International Journal of Management Science and Information Technology Vol. 5 No. 2 (2025): July - December 2025
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijmsit.v5i2.5208

Abstract

Tourism is a vital sector in the economic development of Bali Province, with the number of international tourist arrivals through I Gusti Ngurah Rai International Airport as the main indicator. According to data from the Central Statistics Agency (BPS), the number of international tourists reached its peak in 2019 with over 16.1 million visits. However, in 2020–2021, there was a drastic decline due to the COVID-19 pandemic. In 2022, the number of international tourist arrivals began to show a significant recovery. In 2023, the number of international tourist arrivals to Indonesia reached 11.68 million, most of whom entered through major airports such as I Gusti Ngurah Rai Airport (Bali). The inaccuracy of the tourist arrival grouping process has had a negative impact on business growth and tourism revenue. This study aims to classify the countries of origin of international tourists based on the number of visits using the K-Means Clustering method, an effective unsupervised data mining algorithm for data segmentation. Data was obtained from the Central Statistics Agency (BPS), covering the number of tourist arrivals and their countries of origin from 2018 to 2024. The analysis process involves determining the optimal number of clusters using the Elbow Method, followed by grouping countries based on visit characteristics. The results of the study indicate that tourist countries of origin can be grouped into three main clusters: high-visit countries (Australia and China), medium-visit countries, and low-visit countries. This study provides strategic insights for the government and tourism industry stakeholders in developing more targeted policies, such as improving transportation infrastructure and implementing more effective marketing strategies to maintain and increase the number of tourist visits to Bali.
Co-Authors Adika Setia Brata Alfian Anhar Azis, Azizah Chonnaniyah, Chonnaniyah Mandasari, Erlinda Ramadhani Ramadhani Rozy, Fahrur Setiani, Farida Shita Tiara Suci Rahmawati, Suci