Development of Experiment-Based Physics Worksheets in Science in Developing Students' Science Process Skills

Background: The low levels of students' critical thinking skills and science process skills in diffusion and osmosis material remain a problem in biology learning. This study aims to develop a student worksheet based on the vee diagram to improve students’ critical thinking and science process skills. Methods: The research employed a Research and Development (R&D) approach using the ADDIE model. The subjects were 11th-grade science students at MA Nurul Huda Munjul, consisting of 25 students in the experimental class and 25 in the control class. Instruments included multiple-choice tests, observation sheets, and questionnaires. Data were analyzed using N-gain and t-tests. Results: The developed student worksheet was valid (97.02%) and effectively implemented (90%). Students' critical thinking skills increased with an N-Gain of 0.41 (moderate), compared to 0.05 (low) in the control class. Science process skills also improved to 81.75% (high), outperforming the control class (53.63%). The correlation between critical thinking and science process skills was not significant (r = 0.298 < r table = 0.396; sig. = 0.149). Students’ responses to the student worksheet were in the very good category (85.33%). Conclusion: Thus, the development of vee diagram-based student worksheets on diffusion and osmosis material can enchance student’s critical thinking and science process skills.

The foodstuff course is one of the subjects that is closely related to the context of daily life. The learning model that has been applied by lecturers has not been able to encourage students to use science process skills optimally and produce real work. The teaching materials used also have not trained students' skills and independence in solving problems of daily life. Borax is a prohibited additive in foodstuffs. This study aims to develop borax indicators from natural substances and develop project-based student worksheets to improve science process skills. The development of natural indicators of borax was carried out using the true experimental design method. Extracts of natural indicators were tested for color change in a solution of pH 5, 7, 12 and on positive and negative borax food samples. The development of student worksheets is carried out using a 4D (defining, designing, developing, and disseminating), model and is only limited to the stage through expert review. LKM that has been developed are validated by experts. The data obtained were then analyzed descriptively. The results showed that (a) extracts from secang wood and turmeric could be used as natural indicators of borax and (b) expert assessment of aspects of student worksheets obtained results in the high and very high validity ranges. The results of the development of natural indicators of borax can be used in the development of teaching materials. The developed student worksheets are suitable for limited testing

The purpose of this study is to develop worksheet based on computer simulation (PhET), and to investigate the contribution of that worksheet in increasing students’ science process skill in learning physics especially for Hooke law concept. Worksheet developed for senior high school level used Research and Development approach with ADDIE model, and has already declared by the validator. Design and method used in this research was with matching pretest-posttest one group design. The research population conducted in one of private Senior High School located at Public Senior High School 1 Peukan Baro Pidie, this random sampling for research is done in grade eleven 4. As a result of this research, it was found that the science process skill of the experimental group was significantly higher than before, it means the developed worksheet can be effectively used to increase students’ science process skills.

Aims of this research are to develop a valid and reliable science process skill test of Likert-type in order for determination of prospective preschool teachers' science process skills and herewith identify prospective teachers' science process skill levels. Draft scale was implemented on 141 3rd and 4th grade prospective teachers studying in Division of Preschool Education in Education Faculty of Afyon Kocatepe University during spring semester of 2013-2014 educational year, and was tested against validity and reliability. The test included 32 items. KR-20 (Kuder-Richardson 20) reliability coefficient of the scale was found .92. This test was then implemented on 138 3rd and 4th grade prospective teachers studying in Division of Preschool Education in Faculty of Education of Kutahya Dumlupinar University during spring semester of 2013-2014 educational year. Science process skills test included subdimensions of integrated process skills such as defining operationally (functionally), formulating hypothesis, identifying and checking variables, analyzing data, experimenting. At the end of the analyses, science process skill levels of prospective preschool teachers were found intermediate, while their scores from science process skills test, independent t-test and single factorial variance analyses (ANOVA) showed no significant difference. However science process skills of prospective preschool teachers were found in support of male prospective teachers when considered by gender, and in support of prospective teachers receiving evening education when considered by session type, and in support of graduates of Anatolian high school when considered by type of high school they graduated.

This research aims to produce a student worksheet based on Science Process Skills (SPS) on the concept of the excretory system and to see the responses of teachers and students to the worksheet. The method used is Research and Development (R&D) with a 4D development model (Define, Design, Develop, Disseminate), which is modified into 3D (without Disseminate). The instruments used in this study included a checklist of student worksheets, interview sheets, content validity and readability test instruments for student worksheets, and teacher and student response questionnaires. The development process was through a validity test by three experts, a readability test by 12 students, and a field trial by one biology teacher and 90 students. The results showed that the developed worksheet had an average validity percentage of 85.40% with excellent criteria. In the readability test, the average percentage of the worksheet reached 92.01%, with excellent criteria as well. While in the field trial, the responses of teachers and students showed excellent criteria with percentages of 87.42% and 86.65%. Based on the results, it can be concluded that the Student Worksheet is very suitable to be used in learning activities

<p style="text-align: justify;">The students' low science process skills are caused by learning that is still dominated by the teacher, so it is necessary to develop a learning approach that focuses students in the learning process. One approach that can be used is learning that integrates science, technology, engineering, and mathematics (STEM). This study aims to measure the improvement of students' science process skills that are integrated with the STEM approach on the reaction rate material. This research is a quantitative research with a pre-experimental design type, one group pretest-posttest with a sample of 30 students from class XI SMA Negeri 9 Pontianak, taken by random sampling technique. The data collection tool used is a subjective test of science process skills. The results showed that there was an effect of the STEM approach on the students' science process skills on the reaction rate material, with a score of 76.11, good criteria. Among the aspects of science process skills measured, including observation, classifying, calculating, predicting, inferring, and communication, the communication aspect of students experienced a significant increase from a score of 3.33 to 91.1. This study shows that the STEM approach to reaction rate learning effectively improves students' science process skills.</p>

This research is a research on the development of Student Worksheets (LKPD) based on Indonesian Realistic Mathematics Education (PMRI) on the subject of curved side shapes. This study aims to 1) describe the product quality of Student Worksheets (LKPD) based on Indonesian Realistic Mathematics Education (PMRI) on the subject of curved side shapes. 2) describe the results of the development of Student Worksheets (LKPD) based on Indonesian Realistic Mathematics Education (PMRI) on the subject of curved side spaces. In this study, researchers used research and development procedures according to Sugiyono which have been modified. The subjects of this study were students of class IX at SMP Amayatul Huda, Kec. Medan, Deli Kel. Labuhan Deli. The object in this research is the Student Worksheet (LKPD) which was developed by the researcher. The data collection technique used is the results of validation and interview results related to student responses regarding the use of Student Worksheets (LKPD) products. The development procedures in this study include: (1) potentials and problems; (2) Data collection; (3) Product design; (4) Design validation; (5) Design revision; (6) Product trials. The product validation results for Student Worksheets (LKPD) developed by researchers were 3.9 and 4.2 and were included in the good category. The Student Worksheet (LKPD) which was developed by the researcher received a positive response from class IX students at SMP Amayatul Huda.

The purpose of this research is to examine the impact of activities based on scientific process skills on problem-solving skills of 4th grade students in science lessons. In the study a non-equivalent control group pre-test and post-test design type of quasi-experimental method was used. The research study group was composed of 30 students with 15 each in the experimental study group and control group. In the experimental and control groups, for scientific process skills, the “Scientific Process Skills Test (SPS)”,and for problem-solving skills, the “Problem Solving Inventory for Children at Elementary Education Level (PSIC)” were used as pre-test and post-tests. Activities including scientific process skills in the experimental group were applied for 8 weeks and 16 lesson hours, while no intervention was made to the control group. In the data analysis process, the Mann-Whitney U test and Wilcoxon Signed-Rank test were used. According to the data obtained from the research, it was observed that there was a significant difference in the post-test scores in the Scientific Process Skills Test (SPST) and the Problem-Solving Inventory for Children (PSIC) of the students in the experimental group compared to the students in the control group. According to these findings, it can be stated that activities including scientific process skills develop problem-solving skills of students in primary science education.

Science process skills are one of the skills that can develop potential in students. Science process skills refer to cognitive and psychomotor aspects, so as to create a meaningful learning based on student experience. Digital literacy abilities and students' science process skills are rarely considered in the learning process, so an analysis is needed to determine students' digital literacy skills and science process skills. This study aims to analyze the relationship between digital literacy skills and science process skills in simple plane materials. The research method used is a mixed method with an explanatory design. The research subjects used were 24 students. The research instruments were digital literacy questionnaires, science process skills observation sheets, and interview sheets. Data analysis techniques used quantitative data analysis and qualitative data analysis. The results of the Pearson correlation test showed that there was a significant relationship between digital literacy skills and students' science process skills in simple plane material. The researcher hopes that further research can determine the relationship based on gender.

Currently, a lot of learning focuses on cognitive achievement, which results in less involvement of students in learning. Whereas in the renewable curriculum students are required to have ability incognitive, affective and psychomotor. One of these psychomotor aspects is science process skills by applying inquiry model. This study aims to determine the effect of the implementation of guided inquiry-based practicum worksheets on colloid topics on students' science process skills. The research method used mixed research method research with concurrent triangulation designs. The research was conducted in Cimahi, involving 33 students of class XII and 5 validators consisting of two lecturers and three teachers. The research instruments were used self-assessment, observation sheets for practicum activities using guided inquiry-based worksheets, assessment of student worksheet’s assignments, and restricted-response essays. The enhancement of science process skills was calculated by the N-gain formula using pretest and posttest score and characterize into high, medium and low. The results showed that the improvement of student science process skills on the topic of emulsifiers was in the medium category with an N-gain value of 0.6. The implementation of the practicum using guided inquiry-based worksheets on the result of self-assessment obtained 82.0%, the results of observation obtained 82.9%, and the assessment of student’s assignment in the worksheets obtained 81.6% in which all in the very good category

Students’ worksheets, as learning material, is important to achieve learning outcomes. This study aimed to develop students’ worksheet, based on STEAM (Science, Technology, Engineering, Art, and Mathematics), on ecosystem topics to empower students’ science process skills. The Research and Development used 4D model by Thiagarajan. Students’ worksheet validity was determined by conducting expert appraisal consisting of instructional review (material and learning expert) and technical review (biology teacher). The product trial was carried out by testing the science process skills of tenth graders. The students’ science process skills were measured using pre-test and post-test, which then were analyzed using N-gain calculation. The results showed that the students’ worksheet based on STEAM was categorized as feasible (material expert) and highly feasible (learning expert and teacher). The N-gain score of students’ science process skills after using student worksheet based on STEAM was 0.5 which categorized as medium. It can be concluded that the students’ worksheet developed is feasible and able to empower the students’ science process skills.

In this study, the learning process was carried out using a scientific approach, then measuring the students' interest in science lessons and science process skills. This study aims to: 1) Determine the level of student interest in science lessons using a scientific approach, 2) Investigate the effect of the scientific approach on students' science process skill levels, 3) Investigate the relationship between interest in science lessons and science process skills. The research method used in this study is descriptive and associative correlational survey research methods. The instruments used in this study consisted of 1) questionnaire on the level of students' interest in science, 2) interview sheets, 3) Science Process Skills Test. The samples of this research were 45 students of AnNizam grade VII. The results showed that the investigation of the majority level of student interest was 52% at a high level, the results of examining the effect of scientific learning on process skills using the independent sample t-test obtained t count > t table , namely 6.16 > 1.68. The simple regression investigation found a strong relationship between interest and science process skills of about 0.63.

The purpose of research to analyse: the science process skills that are taught in a model of scientific inquiry using the media PhET better than students taught by learning direct instruction, science process skills of physics students who has the critical thinking skills using a model of scientific inquiry than average -rata better than students who have critical thinking skills using a direct model of instruction above average, the interaction of scientific inquiry learning model using PhET media with critical thinking skills of students in improving students' science process skills. This research is quasi experimental. Technique that used to gain a sample is random cluster sampling. The instrument used is the science process skills test and test critical thinking skills. The results of this study concluded that: the science process skills of students who are taught by the model of scientific inquiry using the media PhET better than students taught by learning direct instruction, science process skills of physics students who have the critical thinking skills using a model of scientific inquiry over average better than students who have critical thinking skills using a direct model of instruction above average, there is interaction scientific inquiry model using the media PhET with critical thinking skills of students in improving students' science process skills.

This research was research and development which focuses to develop Student’s worksheet based on science process skills. The development model of the research refered to 4-D model by Thiagrajan which was solved only until defining, design, and development stages. This research aims to find out: (1) Students worksheet based on science process skill in respiratory system to junior high school validity, (2) students worksheet based on science process skill in respiratory system to junior high school practicality, and (3) students worksheet based on science process skill in respiratory system effectiveness to improve student’s science process skills. The product examination used one-group-pretest-posttest design and was held in 8th grade of SMPN 13 Makassar for second semester of academic year 2017/2018 with the number of subject was 29 students. The results showed that the instruments used fit the valid criteria, based on the student responses and science process skills tests are categorized as effective.

This study aims to analyze the profile of science process skills through the implementations of project-based learning integrated education for sustainable development on acid-base material. The aim of the project is to create a natural acid-base indicator that can determine the pH range of various solutions and the concentration of a solution using the titration method. This study uses a qualitative research method, the interpretive paradigm with the research subjects of XI IPA students in Jakarta totaling 29 people. Data collection techniques are carried out by class observation, reflective journals of student, interviews, and tests of science process skills. The results showed that science process skills arises during learning and were classified as very good with an average value of 86.99% according to observations and classified as good with an average value of 72.26% in the test of science process skills. Students apply the education for sustainable development (ESD) concept during the project by choosing safe solvents and conducting small-scale experiments to reduce the waste produced. The application of this project is expected to make students have the skills of a researcher by paying attention to sustainable development in every decision they make during learning.