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All Journal Pelita Eksakta Jurnal Kajian Matematika dan Aplikasinya
Defri Ahmad
Jurusan Matematika, Universitas Negeri Padang
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics Other

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APLIKASI ROF TOTAL VARIATION MENGGUNAKAN SPLIT BREGMAN UNTUK MENGURANGI NOISE PADA GAMBAR PEMBULUH DARAH KAPILER DALAM JARI MANUSIA Mochammad Hafiizh; Vita Kusumasari; Defri Ahmad
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p33-36

Abstract

An image might have noises that could lose important information on that image. As a consequence, we need a consistent method to reduce the noise without erasing the important information. In this paper, ROF Total Variation using Split Bregman is applied to the image to reduce the noise. We choose the monochrome image of the human capillaries on the fingertips.
Training and Workshop to Apply Mathematical Literacy in Classroom for Mathematics Teachers in Dharmasraya Defri Ahmad; Syafriandi Syafriandi; Jazwinarti Jazwinarti
Pelita Eksakta Vol 2 No 1 (2019): Pelita Eksakta Vol. 2 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol2-iss1/62

Abstract

Abstract – 4.0 industry revolution era brings people to have multi-skill ability to survive. In order to prepare multi-skill people Indonesian government create school literacy actions, but this program needs some teachers with strong understanding about literacy. In fact, many teacher do not understand to much about literacy. They only think that literacy is about read. To solve this problem, training and workshop about literacy is needed. Teachers have to know about literacy more spesific especialy literacy that related to their subject. A training and workshop has been done to Junior High School Mathematics teachers in Dharmasraya. In this activity, teachers study about basic understanding of literacy, and mathematical literacy. By some example, teacher try to solve, and to create some mathematics problem related to mathematics literacy. By questioneering this activity teachers say that this program is very good in material, instructor, and activity.
Workshop on High Order Thinking Skills Mathematical Problems to Increase Teachers Teaching Abilities Defri Ahmad; Syafriandi Syafriandi; Media Rosha
Pelita Eksakta Vol 3 No 1 (2020): Pelita Eksakta Vol. 3 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol3-iss1/110

Abstract

Abstract – To accomodate High Order Thinking Skills (HOTS) in classrom, we need to consider curricula, learning process, and assesment. Learning process and assesment have an essential requirement i.e. teacher’s ability. Government has done some activity to increase teacher’s ability to apply HOTS in classrom, but teachers need more. To keep their motivation and ability, teachers need a continue activity related to HOTS. Lecturer is an academic expert who teach in university level. In Indonesia, service to community is one of obligation for lecturer. Hence increasing teachers understanding about HOTS is one of lecturer’s duty. Training and workshops has been designed to rose teachers ability in creating HOTS problems and teaching using those problems. In this activity, teachers are studied about HOTS concept, the government policy about HOTS, solve some HOTS problem in National level test, and how to create HOTS base mathematical problems. For the next activity, teachers are asked to create some HOTS base mathematical problems, and design a learning trajectoty/ design to put their HOTS problem in learning process. Lastly, base on teacher’s satisfaction questionnaire, teachers are very happy to get this activity for the activity’s programme, mastery of topics, and teacher ‘s needs.
Co-Authors Jazwinarti Jazwinarti Media Rosha Mochammad Hafiizh Syafriandi Syafriandi Vita Kusumasari