The 21st-century challenges require the next generations to have various skills to deal with, including scientific process skills. This study aimed to describe the scientific process skills of the senior high school student in Palembang in term of ecology subject. This descriptive quantitative research observed 231 respondents of the tenth-grade student from two different sub-districts in Palembang, Gandus and West Ilir. The student’s scientific process skills were measured using the test instrument and interview. The results showed that there were various outcomes for each indicator in Gandus i.e. 68.87% (observing), 75.00% (grouping), 54.81% (interpreting), 73.08% (predicting), 52.56% (formulating a hypothesis), 49.04% (planning an experiment), and 43.59% (communicating). Meanwhile in West Ilir the outcomes for students’ scientific process skills were 69.48% (observing), 66.34% (grouping), 56.65% (interpreting), 64.04% (predicting), 59.64% (formulating a hypothesis), 47.85% (planning an experiment), and 41.39% (communicating). It can be concluded that the students’ scientific process skills in Palembang were categorized as the medium. Hence, strategies to promote students’ scientific process skills in biology class still need to be improved especially in ecology learning.

The development of this practicum module is based on overcoming student difficulties in practicum implementation and final report making. Skills-based modules of the scientific process to practice the skills of the process of science are observing, grouping, interpreting, predicting, formulating hypotheses, planning experiments, and communicating. This module is expected to lead the students to be actively involved in carrying out practicum activities independently related to the concept of the material to be studied. The purpose of this research is to produce teaching material product in the form of practical genetic module based on the skill of science process that is feasible and practical used by students in genetic lecturing. The procedure of development in this research with the 4-D model proposed by Thiagarajan that is define (definition), design (design), develop (development), and disseminate (dissemination). Data collection instruments used in the form of interviews and assessment questionnaire. Data analysis techniques used qualitative analysis by calculating the average score of each component of the module assessment and calculating practicality data on the use of the practicum module. The science-based genetic module of the science process module is appropriate for use by professors of materials experts, media experts, and linguists. Second, module practicum based on science skill based on students' responses have practicality in practicum practice that is 76,05% module contents, 76,26% presentation, and 76,10% from the language.

The purposes of this study are to determine the instrument assessment appropriateness in measuring critical thinking skills and understand the level of critical thinking skills at 10th-grade senior high school participants of biology subjects at Palembang. This study is about research and development (R & D). The instrument of development model used is a 4-D development model from Thiagarajan, namely; define, design, develop, and disseminate. Aiken’s V qualitative and quantitative analysis by using QUEST program was used in this study. The results showed that; 1) Biological assessment instruments used in developing critical thinking skills of senior high school participants of the 10th class of biology subject are worth to be reviewed in terms of test standard characteristics; and 2) the percentage of critical thinking skills mastery level on interpretation indicators: 46.78%; 44.86% analysis; 41.15% evaluation; 49.12% inference; 47.50% explanation; and self-regulation 54.27%.

Penelitian ini bertujuan untuk mengetahui persentase tingkat penguasaan keterampilan proses sains siswa SMA se-Kecamatan Bukit Kecil dan Ilir Barat I Palembang. Metode penelitian yang digunakan dalam penelitian ini adalah deskriptif kuantitatif dengan menggunakan soal pilihan ganda beralasan. Sampel penelitian ada 4 sekolah yang memiliki akreditasi A dengan jumlah responden 335 siswa. Teknik pengambilan sampel dengan cara Purposive Sampling. Teknik pengumpulan data dilakukan dengan wawancara, kuesioner, observasi, dokumentasi dan tes. Hasil penelitian yang didapatkan adalah persentase keterampilan proses sains siswa SMA Se-Kecamatan Bukit Kecil dan Ilir Barat I Palembang. Hasil persentase keterampilan proses sains siswa SMA se-Kecamatan Bukit Kecil palembang adalah indikator mengamati dengan persentase 68,18%, mengelompokkan 66,29%, menafsirkan 61,74%, meramalkan 73,48%, merumuskan hipotesis 42,04%, merencanakan percobaan 43,94%,dan mengkomunikasikan 51,89%. Hasil persentase keterampilan proses sains siswa SMA Se-Kecamatan Ilir Barat I Palembang adalah indikator mengamati dengan persentase 75,98%, mengelompokkan 77,21%, menafsirkan 62,43%, meramalkan 75,43%, merumuskan hipotesis 49,31%, merencanakan percobaan 53,72%, dan mengkomunikasikan 49,03%. Skills analysis of science process of high school students AbstractThis study aims to determine the percentage level of mastery of science process skills of high school students in Kecamatan Bukit Kecil and Ilir Barat I Palembang. The research method used in this research is quantitative descriptive using reasoned multiple choicequestions. The study sample consisted of 4 schools that had an A accreditation with a total of 335 students. Sampling technique using purposive sampling. Data collection techniques were carried out by interviews, questionnaires, observation, documentation and tests. The results of the study were the percentage of science process skills of high school students in Kecamatan Bukit Kecil and Ilir Barat I Palembang. The results of the percentage of science process skills of high school students in Kecamatan Bukit Kecil are indicators observing with a percentage of 68.18%, grouping 66.29%, interpreting 61.74%, forecasting 73.48%, formulating a hypothesis 42.04%, planning an experiment 43.94%, and communicates 51.89%. The results of the percentage of science process skills of high school students in Kecamatan Ilir Barat I Palembang are indicators observing with a percentage of 75.98%, classifying 77.21%, interpreting 62.43%, forecasting 75.43%, formulating a hypothesis 49.31%, planning an experiment 53.72%, and communicates 49.03%.

<p>The purpose of this study is: to see the characteristics, feasibility, and practicality of the development of biology modules based on critical thinking skills grade x Plantae material. Modules developed based on the 4-D development model proposed by Thiagarajan are define, design, develop, and disseminate. The product validation was carried out by four validation professors and three biology teachers at SMA Negeri 4 Palembang as practitioners. Limited trials conducted by 15 students in grade x. Data analysis techniques using qualitative descriptive analysis using formulas from Aiken’s V and azwar formulas in excel. The results of the study are as follows: (1) the characteristics of the modules developed are printed using A4 paper. The module consists of a cover, title page, identity page, preface, table of contents, list of pictures, list of tables, instructions for using the module, indicators of critical thinking skills, matter of activities, Plantae material, exercises, summaries, self-reflection, bibliography, glossary , and answer guidelines; (2) biology module based on critical thinking skills on even semester grade X Plantae material is said to be very feasible in terms of the validation results; and (3) the results of practical responses by students when in the field are stated with very practical criteria.</p><p class="Default"> </p><p class="Default"><strong>Keywords</strong>: biology module, critical thinking skills, Plantae</p>