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BERPIKIR KRITIS SISWA DALAM PEMBELAJARAN BERBASIS MASALAH BERBANTUAN KUNCI DETERMINASI Ardiyanti, Yusi
Jurnal Pendidikan Indonesia Vol 5, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Masalah pokok yang di analisis dalam penelitian ini adalahPembelajaranÂ Berbasis Masalah (PBM)berbantuan kunci determinasi dapat meningkatkan keterampilan berpikir kritis siswa SMA, metode yang dilakukan dalam penelitian ini adalah Penelitian Tindakan Kelas (PTK) yang dilakukan sebanyak dua siklus dengan masing-masing siklus terdapat dua pertemuan. Dari PTK tersebut di dapat hasil yang menunjukan bahwa terdapat peningkatan rata-rata hasil pembelajaran yaitu dari 62,89 (siklus I) menjadi 73,42 (siklus II), begitupun dengan setiap indikator pada berfikir kritis terjadi kenaikan, yaitu: indikator memberikan penjelasan dasar mengalami peningkatan sebesar 0,06 (kategori rendah), indikator membangunketerampilan dasar mengalami peningkatan sebesar 0,9 (kategori tinggi) dan indikator menyimpulkan mengalami peningkatan sebesar 0,4 (kategori sedang). Peningkatan ini di hitung berdasarkan rumus gain. Jadi dapat disimpulkan bahwa pembelajaran berbasis masalah berbantuan kunci determinasi dapat meningkatkan berfikir kritis siswa SMA.

FINDING MATRIX CONCEPTS BASED ON COGNITIVE LOAD THEORY ON MATHEMATICS LEARNING ABILITY TO IMPROVE MATHEMATICS LITERACY Asmara, Andes Safarandes; Ardiyanti, Yusi; Suparman, Tarpan
JPI (Jurnal Pendidikan Indonesia) Vol 7, No 2 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This research aimed at improving mathematical literacy among vocational high school students. The subject was students in class X. This qualitative research used tests, observation sheets, questionnaires, and interviews. The result shows that there was a limitation in our brain to process complex contents. Therefore, according to cognitive load theory, in the studying process, the teacher should minimize intrinsic cognitive load and stimulate germane cognitive theory, thus improving students' literacy.

Contextual Learning on Mathematical Subjects to Enhance Student Motivation for Learning in Vocational High School Asmara, Andes Safarandes; Hardi, Hardi; Ardiyanti, Yusi
JPI (Jurnal Pendidikan Indonesia) Vol 8, No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The problem of learning in mathematics is because students always look at mathematics is difficult and usually exacerbated by the use of minimal learning aids. It needs to be given a fun learning solution for students to have the motivation and willingness to learn mathematics.Â One of them is contextual learning. This research wants to see the extent to which contextual learning is able to improve student learning motivation. This study uses qualitative research with the type of action research class (PTK) using the implementation cycle to see increased motivation and student learning outcomes. The results showed an increase in the motivation percentage of learning to study as a whole for each indicator of the I cycle of 62, 89% to 73.42% motivation to study in cycle II for learning outcomes experienced Increase in high category with gain Sebsar 0.71. Based on the data it has been noted that with contextual learning it is able to improve student motivation and learning outcomes.

Effectiveness of Open Worksheet Based on Problems on Skills of Science Process and Creative Thinking of Junior High School Students Yusi Ardiyanti; Marsah Rahmawati Utami
Jurnal Sekolah Dasar Vol 5 No 2 (2020): Jurnal Sekolah Dasar
Publisher : LPPM Universitas Buana Perjungan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jurnalsekolahdasar.v4i2.995

The quality of education is a direct consequence of a change and development of learning at this time. To optimize learning that requires students to have science process skills and creative thinking (in accordance with 21st-century demands) it is necessary to develop more varied learning media. One way is to develop a problem-based open Worksheet that allows students to add information about a material systematically with reference to problem-based learning by covering several stages, including orienting students to problems, organizing students to learn, guiding individual investigations or group, develop and present data, and analyze and evaluate work results. That is expected to improve the skills mentioned above.

ANALISIS AKTIVITAS TOKSISITAS BEBERAPA MINYAK ATSIRI DENGAN METODE BRINE SHRIMP LETHALITY TEST Marsah Rahmawati Utami; Yusi Ardiyanti
Journal of Holistic and Health Sciences (Jurnal Ilmu Holistik dan Kesehatan) Vol 3 No 1 (2019): Journal of Holistic and Health Sciences (Jurnal Ilmu Holistik dan Kesehatan)
Publisher : Sekolah Tinggi Ilmu Kesehatan Holistik

Background: Essential oils are commonly used as raw materials for fragrance oils, medicines and cosmetics. In the pharmaceutical field, essential oils are used as antibacterial, anti-pain and anti-infection. This pharmacological effect is related to secondary metabolites contained in the essential oil. The effectiveness of the active components of secondary metabolites as a drug can be determined by toxicity analysis as a preliminary test. Toxicity analysis that is commonly used is the Brine Shrimp Lethality Test (BSLT). This test illustrates the level of toxicity of extracts against Artemia salina larvae. The results of this test can be used as a preliminary test to identify broader plant bioactivity. Objective: The aim of this study was to analyze the toxicity activities of basil leaf essential oils, galangal rhizome and red betel leaf and their secondary metabolite content. Method: Essential oils were isolated by the steam distillation method, their toxicity activity was tested by the BSLT method, and the contents of the chemical compounds were analyzed by GC-MS. Conclusion: Brine Shrimp Lethality Test results showed that the essential oils of the leaves of the kemanggi, galangal rhizome, and red betel have a level of toxicity with LC50 respectively 57.21 ppm, 110.01 ppm, 360.51 ppm. Based on the results of GC-MS analysis, the main components of the kemanggi leaf essentialoil are lemonal and beta citral, the main components of galangal rhizome essential oil are 2,6-dimethylphenyl borate an 1,8-cineol, while the main components of the red betel essential oil are sabinena and beta mircena.

PENGARUH PROBLEM-BASED LEARNING TERHADAP PENGUASAAN KONSEP DAN KETERAMPILAN BERPIKIR KREATIF SISWA SMK PADA MATERI KARBOHIDRAT Yusi Ardiyanti; Marsah Rahmawati Utami; Dewi Ratnasari
Satya Widya Vol 36 No 2 (2020)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/j.sw.2020.v36.i2.p81-87

Penelitian bertujuan untuk mengetahui bagaimana pengaruh pendekatan problem-based learning pada peningkatan penguasaan konsep dan keterampilan berpikir kreatif siswa SMK pada materi karbohidrat. Penelitian ini merupakan penelitian kuasi ekperimen, dengan desain kelompok kontrol non-ekuivalen yang melibatkan dua kelompok. kelas eksperimen yang mendapat pembelajaran dengan pendekatan Problem-Based Learning dan kelas kontrol yang mendapat pembelajaran menggunakan pendekatan pembelajaran konvensional. Instrumen yang digunakan pada penelitian ini adalah pretest, posttest dan angket, innstrumen pretest posttest berupa 20 soal pilihan ganda (untuk menguji kemampuan penguasaan konsep) dan 4 soal essay(untuk menguji keterampilan berpikir kreatif). Sebelum melakukan pengujian hipotesis maka data penelitian harus memenuhi uji prasyarat yang meliputi uji normalitas (uji Shapiro-Wilk), uji homogenitas varians (Lavene test), uji kesamaaan kemampuan awal siswa (uji t), uji hipotesis penelitian pada posttest dan N-gain dilakukan uji t (parametric) atau Mann Whetney (non parametric). Berdasarkan analisis data diperoleh N-Gain keterampilan berpikir kreatif siswa kelas yang mendapatkan pembelajaran dengan PBL lebih tinggi dibandingkan kelas kontrol yaitu sebesar 0,42 (kategori sedang untuk kelas eksperimen). Namun N-Gain kemampuan penguasaan konsep siswa kelas kontrol lebih tinggi dibandingkan kelas ekperimen yaitu sebesar 0,39 (kategori sedang untuk kelas kontrol)

BERPIKIR KRITIS SISWA DALAM PEMBELAJARAN BERBASIS MASALAH BERBANTUAN KUNCI DETERMINASI Yusi Ardiyanti
Jurnal Pendidikan Indonesia Vol 5 No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Masalah pokok yang di analisis dalam penelitian ini adalahPembelajaran Berbasis Masalah (PBM)berbantuan kunci determinasi dapat meningkatkan keterampilan berpikir kritis siswa SMA, metode yang dilakukan dalam penelitian ini adalah Penelitian Tindakan Kelas (PTK) yang dilakukan sebanyak dua siklus dengan masing-masing siklus terdapat dua pertemuan. Dari PTK tersebut di dapat hasil yang menunjukan bahwa terdapat peningkatan rata-rata hasil pembelajaran yaitu dari 62,89 (siklus I) menjadi 73,42 (siklus II), begitupun dengan setiap indikator pada berfikir kritis terjadi kenaikan, yaitu: indikator memberikan penjelasan dasar mengalami peningkatan sebesar 0,06 (kategori rendah), indikator membangunketerampilan dasar mengalami peningkatan sebesar 0,9 (kategori tinggi) dan indikator menyimpulkan mengalami peningkatan sebesar 0,4 (kategori sedang). Peningkatan ini di hitung berdasarkan rumus gain. Jadi dapat disimpulkan bahwa pembelajaran berbasis masalah berbantuan kunci determinasi dapat meningkatkan berfikir kritis siswa SMA.

Contextual Learning on Mathematical Subjects to Enhance Student Motivation for Learning in Vocational High School Andes Safarandes Asmara; Hardi Hardi; Yusi Ardiyanti
Jurnal Pendidikan Indonesia Vol 8 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The problem of learning in mathematics is because students always look at mathematics is difficult and usually exacerbated by the use of minimal learning aids. It needs to be given a fun learning solution for students to have the motivation and willingness to learn mathematics. One of them is contextual learning. This research wants to see the extent to which contextual learning is able to improve student learning motivation. This study uses qualitative research with the type of action research class (PTK) using the implementation cycle to see increased motivation and student learning outcomes. The results showed an increase in the motivation percentage of learning to study as a whole for each indicator of the I cycle of 62, 89% to 73.42% motivation to study in cycle II for learning outcomes experienced Increase in high category with gain Sebsar 0.71. Based on the data it has been noted that with contextual learning it is able to improve student motivation and learning outcomes.

FINDING MATRIX CONCEPTS BASED ON COGNITIVE LOAD THEORY ON MATHEMATICS LEARNING ABILITY TO IMPROVE MATHEMATICS LITERACY Andes Safarandes Asmara; Yusi Ardiyanti; Tarpan Suparman
Jurnal Pendidikan Indonesia Vol 7 No 2 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This research aimed at improving mathematical literacy among vocational high school students. The subject was students in class X. This qualitative research used tests, observation sheets, questionnaires, and interviews. The result shows that there was a limitation in our brain to process complex contents. Therefore, according to cognitive load theory, in the studying process, the teacher should minimize intrinsic cognitive load and stimulate germane cognitive theory, thus improving students' literacy.

IDENTIFIKASI MISKONSEPSI SISWA PADA MATERI SISTEM REPRODUKSI Yusi Ardiyanti; Marsah Rahmawati Utami
Biosfer : Jurnal Biologi dan Pendidikan Biologi Vol 2 No 2 (2017): Biosfer: Jurnal Biologi dan Pendidikan Biologi
Publisher : Program Studi Pendidikan Biologi, FKIP Unpas,

Understanding the concept of biology is necessary in the integration of nature and technology in everyday life, if the concept of understanding is strong, students can develop and understand higher concepts. But sometimes students have a different understanding of concepts with scientifically accepted concepts and that will lead to misconceptions. The purpose of this study is to determine whether there is misconception in students and sub-concept what most misconception in reproduction system material. To calculate the misconception level of the Certainty of Response Index (CRI) method with the subjects of the study were students of class XI SMA 2 Cikampek. The data can show students misconception for some sub-concepts. The highest misconceptions exist in the menstrual subconses, which is 32.5% while the lowest is in the 10% gamete formation subconsep. This is because students interpret their own understanding of a material based on a text book that is read and an explanation from the teacher.

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