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This research aims to develop learning tools based on science process skills on ecosystem materials at SMA Negeri 11 Enrekang. The research focuses on creating teaching modules and learner worksheets (LKPD) that can increase students' understanding and active involvement in biology learning. This study uses a 4-D development model consisting of four stages: definition, design, development, and deployment, with this research limited to the development stage. The methodology used involves analyzing the needs of students and teachers, designing learning tools, and testing the validity and practicality of the developed tools. The validity test involved two expert validators, while the practicality test was carried out by involving teachers at SMA Negeri 11 Enrekang. The assessment is carried out through a questionnaire that measures the validity and practicality of the learning tools. The results showed that the learning tools developed received an excellent validity assessment, with a "very valid" score for the teaching module and "valid" for the LKPD. The practicality test also showed positive results, with the learning tools rated "very practical" by teachers. These findings indicate that science process skills-based learning tools effectively improve students' understanding of ecosystem materials. This research significantly contributes to developing process skills-based learning tools, which can be adapted in other schools. Further research could test the applicability of these devices to other materials and in different schools to expand their application in biology learning.

In carrying out teaching and learning activities, of course learning media is needed that can support student learning. E-module is a learning media that contains images, videos and quizzes that can provide feedback in learning for students. This research focuses on developmente-mode basedandroid on the use of hand tools. Developmente-mode based android uses the ADDIE development model which has several stages, namelyanalysis, design, development, implementation, andevaluation. This research uses a research designone group pretest-posttest. The subjects of this research were class X TAV SMKN 3 Surabaya with 32 students. Validation is carried out to measure feasibilitye-mode. Student responses are needed to measure practicalitye-mode during learning. Student learning outcomes in the knowledge domain and skills domain are analyzed using the T test to measure effectivenesse-mode in learning. The research results show that (1) the validity of the developmente-mode obtained a result of 83.89% with very valid criteria, which means it is very suitable for use in learning. (2) practicalitye-mode which was developed obtained student response results of 89.47% with very practical criteria, which meanse-modebased android very practical for use in learning to use hand tools. (3) effectivenesse-mode obtained from learning results in the knowledge domain and the attitude domain. In the knowledge domain, the average value is obtainedpre-test of 48.9, while the average valuepost-test amounted to 87.91, and the T test significance value was 0.000<0.05. In the skills domain, an average skill value of 91.92 was obtained, greater than the KKM value of 75, and a T test significance value of 0.000<0.05 was obtained. It can be concluded that there is a significant increase in student learning outcomes in the realm of knowledge and skills.

The aim of this research is to develop valid and practical learning media for the basics of visual communication design. The process of learning the basics of visual communication design at SMKN 1 Pasaman is not optimal, this is caused by several problems, namely the availability of learning media only in the form of printed books that students borrow from the school library. This causes students to not understand the learning material and be less motivated to study and cause low student grades. Based on the data obtained, the students' KKM completion score was only 53%. This research uses the Research and Development (R&D) research and development method with the ADDIE model which consists of 5 stages, namely Analysis, Design, Development, Implementation and Evaluation at each stage. This research involved 36 class X DKV students who took part in learning the basics of visual communication design. The results of this research are Android-based learning software that can be used as a complement to the learning process, especially in the basics of visual communication design subjects. Data collection techniques are in the form of observations and questionnaires, while data collection instruments are in the form of validity questionnaires and practicality questionnaires. The data analysis technique uses a Likert scale with the Aiken formula. The results of this research show that the validity value of the media is an average of 81.53% in the "Very Valid" category, while the validity of the material is an average of 93.85% in the "Very Practical" category and the teacher's practicality assessment is an average of 81.77% in the "Practical" category. " while students' practicality assessment averaged 83.3% in the "Practical" category.

The aim of this research is to develop valid and practical learning media for the basics of visual communication design. The process of learning the basics of visual communication design at SMKN 1 Pasaman is not optimal, this is caused by several problems, namely the availability of learning media only in the form of printed books that students borrow from the school library. This causes students to not understand the learning material and be less motivated to study and cause low student grades. Based on the data obtained, the students' KKM completion score was only 53%. This research uses the Research and Development (R&D) research and development method with the ADDIE model which consists of 5 stages, namely Analysis, Design, Development, Implementation and Evaluation at each stage. This research involved 36 class X DKV students who took part in learning the basics of visual communication design. The results of this research are Android-based learning software that can be used as a complement to the learning process, especially in the basics of visual communication design subjects. Data collection techniques are in the form of observations and questionnaires, while data collection instruments are in the form of validity questionnaires and practicality questionnaires. The data analysis technique uses a Likert scale with the Aiken formula. The results of this research show that the validity value of the media is an average of 81.53% in the "Very Valid" category, while the validity of the material is an average of 93.85% in the "Very Practical" category and the teacher's practicality assessment is an average of 81.77% in the "Practical" category. " while students' practicality assessment averaged 83.3% in the "Practical" category.

Many things are found in the market with various brands and forms, such as in liquid form, instant powder or tablets. The tendency of people today is to prefer to use products whose packaging and presentation are more practical and fast, because it does not need to require a lot of time in preparing it. One example of a health drink that can be found is ginger extract instant drink, where the product is generally made by taking the juice from the ginger rhizome and then further processing. Most of these products are found in powder form, while some are made in tabled or water form.

The cereal products available in the market mostly focus only on practicality and ignore the nutritional content. It is necessary to increase the nutritional content of these products by using local Indonesian raw materials such as sweet potatoes and corn.  The objectives of this study are: 1) to determine the effect of temperature and proportion of purple sweet potato flour and corn flour on the characteristics of cereals produced, 2) to assess the level of preference of panelists for the physical, chemical and sensory qualities of cereals produced. The study design used a factorial randomized design complete with a proportion treatment of purple sweet potato flour and corn. Test parameters include water content, degree of swelling, water absorption, texture, antioxidants, and sensory evaluation. The conclusion in this study is that the comparative treatment of purple sweet potato flour and corn and temperature did not have a real effect on water content, degree of development, water absorption index (IPA), water solubility index (IKA), texture and antioxidants but had an effect on sensory properties

This study aims to determine the level of feasibility assessed from the aspects of validity, practicality, and effectiveness of the PLC-based Logo Softcomfort Job Sheet. Development utilized the Research and Development (R&D) research method. This study employed a one-group pretest-posttest design and was conducted on 34 students of XII TITL 1 class. The research employed a validation instrument for the job sheet, with practicality assessed through student responses, and the effectiveness measured through the cognitive pre-test and posttest scores of students. The results indicate that the job sheet's validity yielded a rating of 94.19, categorized as "very valid." The practicality of the PLC job sheet resulted in a rating of 91.35, categorized as "very practical." Regarding the effectiveness of the PLC job sheet on cognitive learning outcomes, it resulted in a calculated t-value of 18.738, with a critical t-value (df = 66, α = 0.05) of 1.997, obtaining a significance value of 0.000. Based on these findings, the PLC job sheet based on Softcomfort can be considered valid, practical, and effective for use in IML learning at SMK Negeri 1 Pungging.    

This study investigates the performance and sustainability of a hybrid solar-biomass drying system for agricultural products, focusing on its efficiency, environmental impact, and economic feasibility. The hybrid system combines solar energy and biomass combustion to create a continuous and reliable drying process. The key findings reveal that the hybrid system achieves over a 20% improvement in drying efficiency compared to solar-only and biomass-only dryers. This efficiency gain is attributed to the synergistic use of solar energy during the day and biomass energy during periods of low sunlight or at night, ensuring consistent drying conditions and reduced drying time. Additionally, the hybrid system significantly reduces CO₂ emissions, contributing to a more sustainable approach to agricultural processing. The environmental benefits of using renewable energy sources, as opposed to fossil fuels, align with the growing need for energy-efficient and eco-friendly agricultural technologies. Economic analysis suggests that the hybrid system is a cost-effective solution for small- to medium-scale farmers, particularly in rural areas where access to grid electricity is limited. The use of locally available biomass fuels further enhances the system’s sustainability and affordability. This study also discusses the practicality of implementing hybrid dryers in rural farming communities, emphasizing their potential to improve drying efficiency, reduce environmental impacts, and boost economic opportunities for farmers. Future research should focus on optimizing system integration, expanding biomass fuel options, and exploring automation to enhance the performance and scalability of hybrid drying systems.

The student worksheet, also known as LKPD, is a crucial element in the educational process inside schools. Nevertheless, several LKPDS fail to satisfy the requirements of being feasible, valid, and successful in enhancing the abilities of science process learners. Furthermore, the absence of stimuli in the LKPD to foster critical thinking among learners is a pressing issue that requires attention. The objective of this project is to create a Science, Technology, Engineering, Arts, and Mathematics (STEAM) focused Learning Kit and Performance Dashboard (LKPD) that may enhance the scientific process and creative abilities of fourth-grade children in primary school, specifically in relation to plant matter. The study employed the ADDIE Development paradigm, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The findings demonstrated that the STEAM-oriented LKPD created had a positive impact on enhancing the science process abilities and fostering creativity among fourth-grade pupils in relation to plant matter. Furthermore, the enthusiasm for acquiring knowledge and the level of scientific literacy also exert a beneficial impact on the science process abilities of individuals. Teachers and learners also evaluate the LKPD for its viability and practicality

This research aims to produce an LKPD product with a realistic mathematical approach that is valid, practical and effective for improving students' mathematical communication skills. This research and development is based on the stages of the 4D development model by Thiagarajan which was adapted to 3D including the definition, design and development stages. The subjects in this research were the X-Mipa 1 class of SMAN 2 Kabanjahe, totaling 30 people. Based on the research conducted, the validity of the LKPD obtained an average assessment of 89.47% by material experts and 88.15% by media experts with very valid qualifications. Through a questionnaire on the practicality of LKPD by teachers and students, an average of 90.27% was obtained by teachers and 92.12% by students with very practical qualifications. The implementation of learning by applying LKPD with RME was carried out to see the effectiveness of LKPD in obtaining results, namely achieving classical learning completeness. 86.67%, achievement of learning objectives was achieved in questions 1,2,3,4 and 5 and achievement of efficient learning time, from the effectiveness assessment reference, the LKPD developed was classified as effective. The increase in mathematical communication skills that occurred was an increase in the moderate category with an average gain score of 0.632. Based on the data obtained, it was concluded that the LKPD with RME that was developed met the qualifications of being valid, practical and effective.

The absence of student textbooks in the new Creative and Entrepreneurial Project subjects in accordance with the current Merdeka Curriculum causes students to be less familiar with Creative and Entrepreneurial Project material. Therefore, researchers developed an Augmented Reality-Based Creative and Entrepreneurial Project Teaching Book. The research conducted is a type of research and development (research and development). The product development model uses the ADDIE model which consists of Analyze, Design, Development, Implementation, and Evaluation. The development of textbooks uses augmented reality as a supporting media in textbooks. This research design adapts the One Group Pretest Posttest Design, with data collection techniques using questionnaires, observations, and tests. The research subjects involved 28 students of class XI Audio Video Engineering 2 at SMK Negeri 1 Kediri and validators consisting of two lecturers in the Electrical Engineering Education Study Program, and one teacher teaching Creative Projects and Entrepreneurship subjects at SMK Negeri 1 Kediri. The results showed that the level of validity of the textbook in terms of expert assessment was 91% with very valid criteria. The level of practicality of the book in terms of students' responses was 93% with very practical criteria. Learning outcomes with multiple choice tests showed an average pretest score of 64.64, while the average posttest score was 88.04. Based on the Wilcoxon test which shows the difference or increase in pretest and posttest scores has a significance value of 0.000. The significance value of the calculated results thus falls in the H0 rejection area because the significance value of 0.00 <0.05, in other words that the pretest and posttest scores have a significant difference or increase. Based on the calculation and analysis of student learning outcomes data, it can be concluded that the Augmented Reality-Based Creative and Entrepreneurial Project Teaching Book developed is effective in improving student learning outcomes.

This research aims to produce Android-based mobile learning learning media on sequence and arithmetic series material for class VIII SMPN 07 Putussibau. This research uses the ADDIE development design model, which consists of five main stages, namely analysis, design, development, implementation and evaluation. The subjects in this research were class VIII students at SMP Negeri 07 Putussibau. The instruments used in this research were validation sheets, questionnaires and tests in the form of essay questions. The results of the research showed that the validity of the Android-based mobile learning learning media on arithmetic sequences and series material was categorized as very valid, the practicality of the Android-based mobile learning learning media on the arithmetic sequences and series material was categorized as very practical, and the Android-based mobile learning learning media on the sequence and series material. arithmetic is categorized as effective.

This research is a development research that aims to develop PBL-based chemistry learning E-Modules on electrolyte and non-electrolyte solution materials that are valid, practical and effective for use in the learning process. The development model used in this study refers to the Hannafin and Peck development model which consists of 3 stages, namely: (1) needs analysis (Needs Assessment), design stage (Design), and development/implementation stage (Develop and Implementation). This learning E-Module has gone through the validation stage by validators/experts and has gone through small-scale trials and field trials so as to produce a learning E-Module that is valid, practical and effective. Based on the results of data analysis, the average validity of the material was 0.91 and the validity of the media was 0.92 and was in the valid category. The practicality of the E-Module is obtained from the assessment of observers by 100% being in the very practical category, teacher responses of 94.64% and being in the very practical category, and student responses of 91% and being in the practical category. The effectiveness of the E-Module was obtained by 86.36% of students who achieved learning completeness scores. Based on the results of the study, it was concluded that the development of PBL-based chemistry learning E-Modules on electrolyte and non-electrolyte solution materials developed was valid, practical and effective for use in learning.

Drinking water produced by drinking water depots (DAM) is an alternative to meeting the drinking water needs of the community. Practicality and relatively cheaper prices when compared to bottled drinking water, become the main attraction for the community to consume drinking water produced by DAM. This study aims to determine the description of sanitation and bacteriological quality in refill drinking water depots in Kebun Cengkeh, Batu Merah Village, Sirimau Kecematan, Ambon City. The type of research used in this study is descriptive which aims to determine the content of E.coli bacteria and sanitation conditions at refill drinking water depots in Kebun Cengkeh, Batu Merah Village, Sirimau District, Ambon City. The population in this sample is the entire drinking water in all refill depots located in Kebun Cengkeh, Batu Merah Village, Sirimau District, Ambon City. The sample in this study was a portion of the refill drinking water depot. The results showed that 3 DAMIUs had a total score of <70 for sanitary inspection assessment and 3 DAMIUs contained E. coli >0 MPN/100 ml. 3 DAMIUs did not meet the sanitary inspection requirements and 3 DAMIUs did not meet the bacteriological requirements.

One of the media used by PAI teachers at SDN Pakan Labuh 03 is Student Worksheets (LKPD) in learning, especially in Islamic Religious Education lessons. The teacher only gives an explanation of the material then practices the prayer movement directly, then evaluates it. This teaching method is considered inappropriate, because there are still many students who have difficulty understanding the concept of good and correct movement according to Islamic law. The existence of the development of LKPD into e-LKPD that supports the learning of Islamic Religious Education prayer practice materials with the aim of this research is to produce valid, practical, and effective e-LKPD to train students' prayer movements (psychomotor) according to Islamic law on prayer practice material.This research is a development research which has 4 stages, namely: define stage, design stage and develop stage, socialization stage. The research instrument uses product tests, namely: product validity test, product practicality test, and product effectiveness test. The E-LKPD was validated by three validators, namely one media lecturer, one PAI lecturer, and one PAI teacher. At the practicality stage, e-LKPD as a learning resource for prayer practices was tested on fifth grade students at SD Negeri 03 Pakan Labuh.The results of this study are E-LKPD with the support of Liveworksheet and Canva Apps get a final validation value of 0.84, a final practicality value of 0.85 and a final effectiveness value of 0.86. It can be concluded that the development of E-LKPD as a Learning Resource for Prayer Practices at SD Negeri 03 Pakan Labuh is very valid, very practical and very effective to use. E-LKPD can increase teacher creativity, so that ELKPD will look interactive, fun and attract students' learning interest. Interactive E-LKPD is synonymous with sheets in the form of student practice questions done through digital media that meet standards, are practical, and are easily accessible.

This research is development research which aims to develop a learning E-Module using a guided inquiry model in reaction rate material to determine the validity, practicality and effectiveness of the E-Module. The development model used in this research uses the ADDIE development model which consists of 5 stages, namely Analyze, Design, Development, Implementation and Evaluation. This E-module has gone through a validation stage by validators/experts and has gone through food trials, resulting in an E-Module that is valid, practical and effective. The results of the research are 1) E-Module validity assessment by material experts obtained a score of 0.77% in the medium validity category, and media experts obtained a score of 0.81% in the high validity category; 2) the assessment of the practicality of the e-module in student responses obtained a score of 83.75% and teachers who obtained a score of 94.64% were categorized as very practical; 3) The assessment of the effectiveness of the E-Module was seen from the learning results test on 20 students and received a score of 94% so it was categorized as very effective. The conclusion is that the development of a learning E-Module using a guided inquiry model in reaction rate material is valid, practical and effective for use in learning.

The research methodology used by researchers in this research is a research and development approach. The researchers in this study used a research plan that combines a three-dimensional model consisting of four different development stages: Define, Design, and Develop. The participants involved in this research were class VIII students of SMP Negeri 1 Teriak. The method used in selecting the sample used a purposive sampling technique. Purposive sampling is a sampling technique that involves deliberate selection based on certain reasons. Researchers use many data collection strategies, including indirect communication tactics and measurement techniques. The data collection methods used in this research include the use of validation sheets, questionnaires, and assessment of mathematical understanding abilities. Based on the results of the discussion in this research, it can be concluded that the level of validity of interactive video learning media in the form of animated videos on relationship and function material based on direct instruction can be classified as valid with a percentage of 85.27%, the level of practicality obtained is 90.58% with very practical and high level criteria. The effectiveness obtained was 80.76% with effective criteria.

This research aims to ensure accuracy, ease of use, and effectiveness in the learning module development process which aims to increase understanding of the content of the 1945 Constitution of the Republic of Indonesia (UUD 1945). In this research, research and development (R&D) methods are used using the ADDIE development model, namely analysis, design, development, implementation, and evaluation. In the research results, it is known that the results of expert validation of teaching materials obtained a score of 96% and validation of material experts obtained a score of 91%. In the practicality results obtained from the response questionnaire to teachers and students after using the teaching modules used, the practicality results for teachers were 94% and students were 98%. In the results of its effectiveness by giving evaluation questions to class X students, an average of 83.7 was obtained, while the KKM for class The results of this research show that the learning module that has been created meets the third evaluation standard, namely validity, ease of use, and effectiveness.

This research aims to determine the validity, practicality, effectiveness and how the students' answers process in completing the conceptual understanding ability test of the developed Articulate Storyline. This type of research is ADDIE model development research. The subjects of this research were 15 students in class VIII-2. The research results showed that the validity of the media was 85% before revision and 98% after revision from material experts and 61.67% before revision and 98% after revision from media experts on very valid criteria. The practicality of the media has met practical criteria, based on teacher responses obtained at 100% and from student responses obtained at 92.36%. The effectiveness of the media has met the effective criteria in terms of classical student learning completeness reaching 86.67%, use of research time in accordance with the RPP, and student response of 91.67%. The N-Gain test result is 0.70 in the high category. For the student answer process on the ability test (pre-test) it was 38.89%, increasing to 46.67% on the final ability test (post-test). Increasing students' ability to understand mathematical concepts strengthens the development of Articulate Storyline mathematics learning media in the classroom learning process.

The problem in this research is the lack of enthusiasm of students in the learning process, students are lazy to open printed books, lazy to go to the library, limited learning references. The purpose of this study was to describe the Pai learning process, the validity and practicality of developing teaching materials in the form of Reading Literacy Development in Islamic Religious Education Subjects Based on Instagram Social Media in Class X SMA N 3 Panyabung. The method used in this research is research and development. With a 4D approach (Define, Design, Developed, Disseminate). Reading Literacy in Islamic Religious Education Subjects Based on Instagram Social Media in Class X SMA N 3 Panyabung was declared valid by both validators with an overall percentage score of 82.5% being very valid from the two validators. Based on the results of the questionnaire analysis of students' responses to the practicality of using reading literacy in the Pai subject, it was found that this media was practically used in learning with an overall acquisition of 85%. The item statement obtained an average questionnaire value of 84.63%. with very practical information. Based on the results of the validity and practicality that has been carried out by researchers on reading literacy in Pai learning based on Instagram social media for class X SMA 3 Panyabungan can be used in the learning process.