UNIVERSITAS NEGERI SEMARANG (UNNES)

A Robust Data Envelopment Analysis for Evaluating Technical Efficiency of Indonesian High Schools

the main purpose of this study is to evaluate the technical efficiency of high school education in indonesia by applying data envelopment analysis (dea), which is the most frequently used to measure t...


The Effect of Feedback as Soft Scaffolding on Ongoing Assessment Toward the Quantum Physics Concept Mastery of the Prospective Physics Teachers

many recent studies have reported that feedback plays a very important role in students' learning outcomes. however, currently, feedback has not been utilized by lecturers and students in the learning...


Analysis of Students' Critical Thinking Skill of Middle School Through STEM Education Project-Based Learning

this research is to investigate the students` critical thinking skill by using stem education through project based learning. the study applied descriptive research design. in these lessons, the parti...


Teachers' Performance in Science Learning Management Integrated with Character Education

the research aims at revealing the performance of teachers in science learning management integrated with character education. this study employed qualitative research method. based on the result of t...


The Impact of Engineering Design Process in Teaching and Learning to Enhance Students' Science Problem-Solving Skills

this study aimed to determine the impact of the integration of engineering design process (asking, imagining, planning, creating and improving) in an electrical & magnetism module to improve problem-s...


Control Pest of Leaf Caterpillars (Plutella Xylostella) in Delima Rose Apples Using Soursop Leaf Extract (Annona Muricata)

the increasing of pesticide use is in line with the increasing number of pest populations. however, the use of pesticides causes various negative impacts on the environment (soil, water, and air) such...


Development of Digital Storytelling-Based Science Teaching Materials to Improve Students' Metacognitive Ability

this study aims to produce digital-based storytelling teaching materials of natural science that can facilitate the students to be able to explore the object of science learning deeply and to improve ...


Do Physics Textbooks Present the Ideas of Thought Experiments?: a Case in Indonesia

this study sought to check and evaluate whether or not thought experiments presented in the indonesian physics textbooks can be used as tools to transfer scientific knowledge. this was a descriptive s...


Students' Errors in Solving Science Reasoning-Domain of Trends in International Mathematics and Science Study (TIMSS)

this research aims to identify the errors of students' answers in solving the timss cognitive domain of reasoning. this research was a qualitative descriptive research. a total 259 students from four ...


Learning Experience of Pre-Service Physics Teachers in Developing Simple Project Loaded by Life Skills

this research aims to reveal the experience profile of future physics teachers in developing simple multi-loaded life skill project. the research method used was a descriptive method with 62 future ph...


Learning Difficulties of the 5th Grade Elementary School Students in Learning Human and Animal Body Organs

natural science is an elementary school subject that requires students to organize ideas and concepts about the natural world gained from experiences through a series of scientific processes such as i...


Comparison of Mathematical Representation Skill and Science Learning Result in Classes with Problem-Based and Discovery Learning Model

the purpose of this research is to know the difference of mathematical representation skill, the result of science learning and its influence on problem-based learning and discovery learning model. th...


Integrating SQ4R Technique with Graphic Postorganizers in the Science Learning of Earth and Space

this study examined the effect of integrating sq4r reading technique with graphic post organizers on the students' earth and space science learning achievement and development of metacognitive knowled...


Effectiveness of POGIL with SSI Context on Vocational High School Students' Chemistry Learning Motivation

this study aimed to examine the difference of vocational high school students' learning motivation after they were taught the topic of the electrolyte solution and redox reaction using pogil model wit...


Analysis of Science Process Skills of Summative Test Items in Physics of Grade X in Surakarta

the objective of this research is to analyze the science process skills (sps) of the summative test items in physics in surakarta. this research used a descriptive method with content analysis, namely...


Effect of Pressure in Organic Waste Burning Process on the Combustion Rate

the combustion process of organic waste has several drawback which produce flue gases containing pollutants so2, hcl, tar and heavy metals (cu, hg, fe, zn, pb, and cr). the pollutants can be removed ...


Yellow Corn Biscuits for Early Childhood: High Energy and Beta-carotene

snacks which are most widely consumed by early childhood are biscuits. the conventional raw ingredients of biscuits are varied with yellow corn starch, which contains beta-carotene. the composition of...


Characterization of Saccharide Sugar in Corn Seed (Zea Mays Saccharata) by Using Gas Chromatography Mass Spectrometry Method

this study characterizes the saccharide sugar contained in whole sweet corn seeds by extracting using ultrasound assisted solvent extraction for 60 minutes with 24 khz frequency using ethanol solvent ...


The Effect of Temperature and Nitrate Compound on Growth, Biomass and Free Fatty Acid Content on Microalgae Culture of Spirulina SP. and Skeletonema SP.

temperature and availability nutrients played an important role on growth and lipid production of microalgae. in this study, we examined the effect of increasing suhu and excessed and depleted no3 on ...


The Extraction of Brown Algae (Sargassum SP) Through Calcium Path to Produce Sodium Alginate

brown algae is a source of sodium alginat raw material. one type of brown algae that is found to grow in indonesian waters is sargassum echinocarphum. brown algae including one type of seaweed that gr...


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