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All Journal BERKALA SAINSTEK Jurnal Pendidikan Biologi Indonesia
Jamaluddin, J.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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LEARNING DIFFICULTIES IN COMPREHENDING VIRUS AND BACTERIA MATERIAL FOR SENIOR HIGH SCHOOLS Firmanshah, Muhammad Imam; Jamaluddin, J.; Hadiprayitno, Gito
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol 6, No 1 (2020): MARCH
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v6i1.10981

Abstract

Previous research only focuses on the difficulties and factors causing learning difficulties without any solution. This study aimed to identify learning difficulties, factors, and alternative solutions overcoming the problems of learning difficulties about viruses and bacteria. Data collection was carried out through the provision of a concept mastery test involving 195 students (8 schools) and in-depth interviews conducted by involving 37 students (4 schools) who received the lowest test scores. Data analysis was performed using a percentage formula to determine the proportion of difficulties for each competency. The results showed that students had difficulty with the highest percentage of virus material, those were the competence of analyzing the role of viruses in life (85.64%) and virus replication process (83.21%). The competence in bacterial material which has the highest percentage of difficulty (77.26%) in identify bacterial classification. The factors causing students to have difficulty learning virus and bacteria consisted of the nature of the topic (77.03%), attitudes and learning habits (60.81%), teacher?s teaching skills (37.84%), and school facilities (27.03%). Alternative solutions are: teachers reduce the content that is complex and detailed, carry out an interactive learning process (audiovisual/animation), providing more learning experiences through practical activities, and teaching through interesting ways.
Rancang Bangun Indoor Positioning System berbasis Wireless Smartphone menggunakan Teknik Global Positioning System dengan Metode Absolut Jamaluddin, J.; Nugroho, Agung Tjahjo; Maulina, Wenny
BERKALA SAINSTEK Vol 7 No 1 (2019)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v7i1.9914

Abstract

Indoor Positioning System (IPS) merupakan teknologi informasi untuk menentukan posisi objek di dalam ruangan berbasis wireless smartphone. Perangkat yang digunakan dalam penelitian ini adalah empat unit smartphone, satu smartphone sebagai transmitter, dan tiga smartphone lainnya sebagai receiver. Tujuan penelitian ini adalah mendapatkan model dan tingkat akurasi dari IPS berbasis wireless smartphone menggunakan teknik Global Positioning System (GPS) dengan metode absolut. Penelitian ini dilakukan dengan membuat dua model IPS dan melakukan pengukuran intensitas sinyal Wi-Fi berdasarkan masing-masing model IPS yang telah dibuat untuk mendapatkan persamaan linier antara jarak dan intensitas sinyal Wi-Fi. Persamaan linier yang didapatkan dari model IPS digunakan untuk menentukan jarak antara receiver dan transmitter berdasarkan intensitas sinyal Wi-Fi yang terukur pada saat pengujian model, kemudian informasi jarak tersebut digunakan untuk menentukan posisi objek (transmitter). Hasil penelitian menunjukkan bahwa Model 1 IPS berbasis wireless smartphone mampu mengestimasi posisi dengan rata-rata tingkat kesalahan mencapai 4,46 m dan tingkat akurasinya mencapai 76,51%. Model 2 IPS mampu mengestimasi posisi dengan rata-rata tingkat kesalahan 9,68 m dengan tingkat akurasinya mencapai 49,03%. Berdsarakan hasil tersebut, dapat disimpulkan bahwa model 1 IPS memiliki tingkat akurasi yang lebih baik untuk mengestimasi posisi objek daripada model 2 IPS. Kata Kunci: Global positioning system (GPS), indoor positioning system (IPS), wireless smartphone.
Co-Authors Agung Tjahjo Nugroho Firmanshah, Muhammad Imam Gito Hadiprayitno Wenny Maulina, Wenny