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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Pendas : Jurnah Ilmiah Pendidikan Dasar JURNAL PENDIDIKAN MIPA Mandalika Mathematics and Educations Journal Journal of Classroom Action Research Jurnal Pendidikan dan Pengabdian Masyarakat
Harry Soeprianto
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

 1 
SIFAT PENYERAPAN BUNYI PADA KOMPOSIT SERAT BATANG PISANG (SBP) – POLYESTER Khusnul Khotimah; Susilawati -; Harry Soeprianto
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 1 (2015): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.9

Abstract

This research conducted to find the physical properties of the absorption of sound from banana stem fiber (Serat Batang Pisang/SBP) with polyesters’ matrix. The sound absorbent material made with a variety of different volume fraction composition. The comparison between the SBP and the volume fraction of the polyester is made of 30%: 70%, 40%: 60% and 50%: 50%. The method of research was done in three stages: making banana stem fiber, manufacturing composite and testing of composite SBP. Composite testing includes physical properties (sound absorption). Preparation of the samples started by taking a banana stem, decomposition banana stem fiber, alkali treatment with NaOH 4%, then mixing the SBP with the matrix  polyester. Manufactured the composites by press the materials on the molding for 12 hours, then tested to find physical properties. Sound absorption test performed using a signal generator and a sound level meter with the principle of the impedance tube method through acoustic box approach as a reference. The results of the study showed that SBP with polyester composite capable to absorb the sound with sound absorption coefficient α = 0.84 at 50% fiber volume fraction. Thus SBP composites can absorb sound for low and medium frequency, based on the standard ISO 11654:1997 (E) where the minimum of sound absorption coefficient of acoustic materials is α = 0.15. Keywords: Composite, banana stem fiber, sound absorber materials, polyester.
PENGEMBANGAN BUKU AJAR ASTRONOMI BERBASIS SELF REGULATED LEARNING SEBAGAI UPAYA MEMOTIVASI MAHASISWA UNTUK BELAJAR MANDIRI Susilawati -; Harry Soeprianto; Habibi -
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 2 (2015): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i2.25

Abstract

The study aims to produce a textbook Astronomy based self-regulated learning that can motivate students to learn independently. The method used is Research and Development (R & D) by adopting three of the four stages of development models that define 4D (definition), Design (design), and the Development (development). Define phase conducted to determine the characteristics of the products textbook developed through a preliminary study. Selection of the format of the manufacture of textbooks carried out at the stage of design to produce a draft of the Development Phase I. undertaken to produce draft II, III draft, and the final product of the textbook developed. Draft II obtained through the revision of expert validation of three validator recommended. Draft III is the result obtained from a test on a small group of 5 students FKIP Unram as samples taken at random. The end product obtained from the development of field tests on all Unram FKIP students who are taking elective courses astronomical TP 2013/2014 amounted to 12 people. Validation results as well as devices supporting textbook shows the criteria of "very decent" to be used and can motivate students to learn independently.
PENGEMBANGAN MODEL PEMBELAJARAN KOOPERATIF TIPE KOSAJI PADA PEMBELAJARAN FISIKA Rumansyah -; Kosim -; Harry Soeprianto
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 2 (2016): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i2.42

Abstract

This study aims to develop a cooperative learning model of KOSAJI type that valid, practical and effective. KOSAJI of cooperative learning model is a collaboration between cooperative learning model type STAD and Jigsaw in physics learning. The method used was the research development model adopted Dick and Carey with ten stages which includes a needs analysis to determine the objectives, formulate indicators, the analysis of the students and the context, the establishment of specific goals of learning, the development of assessment tools of learning, the development of learning strategies, the development and selection of material lesson, formative evaluation, revision of the device, and a summative evaluation of the effectiveness of the device. This research was conducted at SMAN 1 Mataram. KOSAJI cooperative learning model developed together with learning devices such as lesson plans, worksheets, questionnaires students' attitude towards physical and cognitive achievement test. KOSAJI learning model along with the device has been through expert validation, test a small group, limited field testing and large-scale (summative evaluation). Implementation KOSAJI learning model in teaching physics to minimize shortage and optimize the advantages that exist in both the type of cooperative learning model. Based on expert validator test KOSAJI learning model and is well worth learning device used with a percentage value of 94.99% . After going through the stages of the test group was small and limited field KOSAJI learning model can be applied to both in terms of the response of the students (80.52 % on a small test group and 83.41% in the limited field testing ), the response of teachers (76.92 % in the small test group and 82.69 % limited field tests) and enforceability of RPP (86.61 % on a small group of test and 86,62 % in limited field test) with some revisions .Summative test results showed that the learning model KOSAJI effectively improve students' cognitive learning outcomes with increased value in terms of pretest and posttest of 41.93%. Therefore, the development of cooperative learning in teaching physics KOSAJI proved valid, practical and effective.Keyword: KOSAJI Cooperative Learning Model, Physics Learning
Co-Authors Amilatul Ummi Amrullah Amrullah Annisa Syafrina Rizkyka Hamid Arjudin Arjudin Baidowi Baidowi Baidowi Dedi Irawan Eka Kurniawan Habibi - Hapipi Hapipi Hasanah, Wirda Holyness Nurdin Singadimedja I Ketut Sarjana Ketut Sarjana Kosim - Kuraini, Nadia Laila Hayati Mardjun, Arhudawan Muhammad Diennis Dwi Mustika Muhammad Turmuzi Najela Dekantari Ni Putu Ayu Listiani Nilza Humaira Salsabila Nourma Pramestie Wulandari NURUL HIKMAH Nyoman Sridana Prayitno Sudi Rumansyah - Sri Subarinah Sripatmi Sudi Prayitno Susilawati - Ulfa Lu'luilmaknun Ulfa Lu’luilmaknun