Abdurrahman
Universitas Lampung

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Journal : JOURNAL OF KOMODO SCIENCE EDUCATION

PENGEMBANGAN SOAL TES BERPIKIR TINGKAT TINGGI MATERI FLUIDA UNTUK SMA Nova Liana; Wayan Suana; Feriansyah Sesunan; Abdurrahman
JOURNAL OF KOMODO SCIENCE EDUCATION Vol. 1 No. 01 (2018): Science Education in 21st century (NOVEMBER)
Publisher : Unika Santu Paulus Ruteng

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Abstract

The purpose of this research is to design the two-tier multiple-choice (TTMC) test on fluid material by Rasch Model analysis. Development was adopted from Adams and Wieman (2011) including the format of item and construction of item sets, assessment guidelines assigning, expert test, and a revision of item. The subject of research trials was 57 students of grade XI MIA in SMAN 1 Kotaagung. The data obtained were analyzed using the Rasch Model with Winstep 3,73 applications. Based on the results of research, it was concluded that (1) questions of HOTS developed was valid {achieve the acceptable ranges of PT-Measure, Outfit Mean Square (MNSQ), and value of Outfit z-standardized (ZSTD)}, (2) questions of HOTS developed have excellent reliability with alpha chonbrach’s of 0.94, (3) there are 5 very difficult questions, 10 difficult questions, 11 easy questions, and 4 very easy questions, (4) respondent has good consistency of answer, (5) deception options on all item was valid, and (6) all items have a discrimination very good with value of Pt Measure Corr more than from 0,40. Questions of HOTS that developed can increase the higher-order thinking skills of students so they have a good mastery of a concept.
IMPLEMENTATION OF THE STEM LEARNING TO IMPROVE THE CREATIVE THINKING SKILLS OF HIGH SCHOOL STUDENT IN THE NEWTON LAW OF GRAVITY MATERIAL Jeni Pratika Surya; Abdurrahman; Ismu Wahyudi
JOURNAL OF KOMODO SCIENCE EDUCATION Vol. 1 No. 01 (2018): Science Education in 21st century (NOVEMBER)
Publisher : Unika Santu Paulus Ruteng

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (529.785 KB)

Abstract

The purpose of the research is how to know the improvement of the ability to think creatively in class X high school students by using the STEM approach. The sample of this research is the student's class X science one SMAN 14 Bandarlampung school year 2017/2018. The research design used was One-Group-Pretest-Posttest. Creative students thinking ability data collected using the instrument’s ability creatively. The result showed that the value of Normalized Gain (N-Gain) around 0.57 with categories is being. As well as the value of the significance test Pairs Sample T-test of 0.000 meaning STEM learning approach to implementation is able to improve thinking ability creative students. In this study of the indicators most influential creative thinking towards the implementation of the approach STEM is flexible thinking skills seen indicators of assessment of pretest and posttest students who tested showed increased results significantly.