Coral reefs are one of the compilers of ecologically and economically important tropical marine ecosystems, but are very vulnerable to damage. Declining sea water quality due to climate change, coastal land use, and inaccurate coastal management patterns can threaten its sustainability. This study aims...

Kemantren beach is located in the Kemantren Village, Paciran District, Lamongan Regency. This beach is consists of sand and coral substrate. Kemantren beach is one of the small coastal islands of Java that has already reclaimed with spot of high ecotourism potency and habitat for numerous types of invertebrate....

Scientific literacy skills are essential for students, as it related to how students can understand their environment and their various life problems. The purpose of this research was to study the dynamics of scientific literacy skills of biology students in histology lectures. This research used a descriptive...

The aim of the study was to obtain the optimum content of chlorogenic acid (CA) yacon tubers on the use of natural inhibitors through a combination of immersion in natrium chloride, ascorbic acid and citric acid with 14 days storage at 5 and 15°C temperature variations. Yacon tubers are obtained from...

This research study about self cleaning activity of TiO2 coated on cotton fabric. TiO2 nanoparticles is known as good semiconductor which have photocatalytic properties. Cotton fabric was coated by TiO2 to produce self cleaning textiles. Coating of TiO2 nanoparticles on cotton fabrics was carried using...

To adapt the IT curriculum to the requirements of the IT industry skills, several methods have been proposed. Among them is the method of mining job advertisement data to find skills that are being sought by the industry. However, so far no significant research has focused on providing recommendations...

Graphite is a carbon allotrope with special bonding characteristics. These bonds can be altered given ultrasonic waves to be another form of bond or loosened. Changes in bonds will cause changes in bond characteristics to other forms of carbon allotropes. By varying ultrasonication process (time and...

In this research, Euler method is applied to discretize a harvested predator prey model with ratio-dependent response function and prey refuge. The existence and stability of fixed points has been analyzed. Stability of each fixed point shown that the fixed points are stable for small size of time step....

Since Electronic Chart Display and Information System (ECDIS) is a very important navigator for the safety of seafaring, a cadet of Seafaring Polytechnic should learn it at class. Cadet should master how to use it properly to improve effectiveness and efficiency in seafaring. But, ECDIS only in the ship...

Ramadan Effect, one type of market anomaly, is a seasonal anomaly which shows a difference in average returns in the month of Ramadan compared to other months in one year. The phenomenon of increasing public consumption in the month of Ramadan is suspected to be a phenomenon that causes returns in Ramadan,...

In this paper, problems involving time-dependent diffusion-convection equation are studied. To study these problems, a numerical method is employed to solve the equation numerically. The method used in this research is a Laplace Transform Dual Reciprocity Method (LTDRM). Using this method, the time-dependent...

The fuzzy transport algorithms is used by researchers for finding optimal solution of Fuzzy Transport Problem (FTP), one of them is the Least Cost Method or LCM. The concept of LCM is to choose the least cost from the FTP table to be used as the base cell. If there is the same lowest cost, it is freely...

Mathematical understanding is an important aspect in learning mathematics. Pirie and Kieren's theory classified that eight layers of mathematical understanding, including image making and image having. In solving the problems, these layers can show the students such a way of solving problems. The purpose...

This study aimed to investigate and describe students’ proof schemes for disproving mathematical proposition. Previous studies examined students’ proof scheme of Calculus, Elementary Numbers Theory, Quadratic, and Geometry’s Propositions. This study examined student proof schemes of Divisibility’s Proposition...

Elementary school students’ knowledge of fraction magnitude may predict their mathematics achievement. Students’ mathematics achievement is influenced by their mathematics difficulties. This study exposes students’ representations in estimating fractions to indicate their fraction magnitude knowledge....

This study aims to find out the description of the use of educational game media and its impact on the mathematics learning outcomes of grade VI elementary school students. This study included quasi-experimental research with a pre-test-post-test control group design. This study involved 29 sixth grade...

This study aimed to examine the outcome of lectures conducted using hybrid learning in Integral Calculus courses. It focused on students’ achievement and students’ experiences. Teaching materials were developed using the Plomp development model in the form of learning videos which met valid, practical...

This study was designed to describe the understanding of quadrilateral concepts in junior high school students based on the APOS theory (Action, Process, Objects, and Schemes). The research used qualitative approach to explain the understanding of two junior high school students who had equal mathematical...

This research was aimed to (1) describe the development the good cooperative learning tools with TGT types on algebraic form material and (2) know the effectiveness of the learning on algebraic form material using TGT to reduce the students’ mathematical anxiety. This research was a development research....

The process of learning mathematics, anxiety is a supporting and inhibiting factor for student learning achievement, especially in learning logarithm material. Difficulties in the form of anxiety are one of the emotional factors of students. Anxiety can also be a useful stimulus because each student...

This study aims to develop calculus teaching materials based on Hybrid Learning. It can be used to prepare students with the 21st-century challenge. This research is expected to help students in facing the learning process in the future. Also, this research aims to help the students to engage in the...

The aim of this study is to describe flexibility of students with guardian and artisan personality types in solving fraction problems. This study is a descriptive study using qualitative approach. The subjects consisted of two 8th grade students that were measured by Personality Classification Test (PCT)...

Based on curriculum development in primary and secondary schools, Unesa Mathematics Department through the KKNI curriculum has tried to adjust 2013 curriculum, which is to teach students about learning with scientific and constructivist approach. This is done in the subject of Innovative Learning II...

To activate the cooperation or collaboration skill of the students, educator often make small groups of students and give some topics to be discussed. However, we often ignore the activities that occur within the group. This article describe the process of problem solving occurred in 3 groups of prospective...

The purpose of this study is to explain the validity of student worksheets based on argumentation and self-efficacy learning that has been developed. The development of the student worksheets refers to the design of the Wademan model development research model. The student worksheet applied phases of...

This electronic document is a “live” template and already This study aims to train the digital literacy of seventh-grade junior high school students with electronic books in electronic publisher format. The book used in this study has been validated previously included in the category of very feasible....

Thermochemistry is one of materials that had low student’s understanding ability on National Examination in 2013-2015 which only gets 55.45%. This low percentage because of student still has misconception. Misconception can cause students having low ability to understand a concept. This misconception...

The aim of this research is to analyze the students’ scientific reasoning skill by the use of Students’ Local Wisdom-based Worksheet. This is a Quasi Experimental research with One Group Pre-test Post-test design. Research population are the entire students of science education of UniversitasMuhammadiyahSidoarjo....

An instructional video might help learners to conceive learning attainment better or acquire specific skills. This study aimed to describe video quality, metacognitive skills, and responses of pre-service teachers. The video was developed using ASSURE model consisted of six stages; analyzing learner,...

The main objective of this study was to describe the effectiveness of guided inquiry-based learning to improve high school students’ science literacy skills. The science literacy skills was the ability to engage with science-related issues, scientific ideas, and reflective thinking. Evaluation criteria...

The aim of this study was to explain the effectiveness of the Investigation-Based Multiple Representation (IBMR) learning model to improve the physics problem solving abilities of high school students on reflection and refraction of light. The effectiveness of the learning device was analyzed based on...

The main purpose of edutainment is to increase enthusiasm for learning. However, the implementation of physics learning still lacks emphasis on the learning process that meaningful and relevant, especially in Indonesia. This study were purposed to make the design of physics learning by integrating science...

One of the 21st century skills needed by students is scientific literacy skill. Students who take Animal Systematics courses which are need to train in scientific literacy skills through scientific writing activities. This study aimed to describe about integration of writing scientific articles in systematic...

This research aimed to analyze the effect of Problem Based Learning with Gallery Walk Strategy to creativity and communication skills in physics. This strategy was effective to conceptual topic. Therefore in this research, the chosen topic was global warming. This research was conducted to two groups...

This research was conducted in two stages; preparation stage which was aimed to develop the device, followed by implementation stage of learning in classroom using the pretest posttest design. The validation test consisted of media validation tests by media expert lecturers from the chemistry department...

The purpose of this study is to produce a Student Investigation Worksheet (LKPD) based on Group Investigation learning to train the appropriate Junior High School students’critical thinking skills based on validity, practicality, and effectiveness. LKPD was developed with a 4-D research design namely...

This article reveals student achievement in the Indonesia National Examination on Chemistry Material at the high school level in the East Java Province from 2015-2016, 2016-2017, and 2017-2018. The chemistry exam consists of Basic Chemistry, Analytical Chemistry, Inorganic Chemistry, Organic Chemistry,...

Field trips provide an opportunity to learn about life in the real world through exploration activities. This descriptive study aims to describe the process and response of students to the action of field trips to Materia Medica Batu (MMB) to support biotechnology courses. The participants in this study...

This study aimed to determine the impact of the use of computer-friendly games on Chemical Adventure as a medium to study Chemistry on learning outcomes, learning interests, and student responses. The form of research used was Pre-Experimental Research with a single group design Pretest-Posttest One...

Digital literacy is one of the important skills that must be mastered by Biology Teacher. An effort has been applied to integrate the learning of Animal Systematics with the training of digital literacy for pre-service biology teachers. This research aimed to evaluate the digital literacy of pre-service...

This paper presents a critical analysis of dramatization used in an evacuation drill in Indonesian elementary schools. Practical safety procedures become more prioritized than theoretical knowledge when it comes to saving a life from the risk of a natural disaster. Evacuation drill provides practice...

Problem solving skills are urgently needed in everyday life and teachers should train in this global era. One of the models that can train problem solving skills is problem based learning (PBL) model. PBL model still has some weaknesses. Students find difficulties in the learning, the result of learning...

This research aim is to describe the ability profile of junior high school teachers in developing high-level thinking questions for science subjects. This research was a quantitative descriptive study of junior high school teachers from Java and Eastern Indonesia. Data was obtained by collecting questions...

Conservation of Natural Resources and Environment (CNRE) is mandatory course to be taken by all student in Faculty of Mathematics and Natural Sciences. Main learning outcome of this course is for students to be able to solve problem relating to application of natural resources and environment conservation...

This study aims to determine the tsunami evacuation skills that have been applied in schools. This research is qualitative and quantitative. This trial phase was conducted at State Junior High School 1 Besuki, tested to 15 students of class VII. The sample selection is chosen from the population using...

The aim of this research is to obtain the practicality of scrap-mod as a learning media on a molecular geometry matter. It is reviewed based on the activities of the students and responses of the student. This research used the R&D (Research and Development) method which is a limited trial stage. Data...

Soybeans are national food crop commodity with a high level of consumption per year. Efforts to increase soybean production are accomplished through fertilizer application. The utilization of chemical fertilizers, however, can negatively impact the environment. One alternative to the application of fertilizer...

Postpartum period is the period after the fetus and placenta are born until the recovery of uterine devices such as the condition before pregnancy which lasts for about 42 days. During the puerperium, the body of a mother will experience physiological changes in the physical and psychological changes....

Elephantopus scaber plant contains various secondary metabolites, such as flavonoids, phenolics, saponins, terpenes, triterpenoids, sesquiterpenes lactones, elephantopyns, and deoxyelephantopin, which can act as antimicrobial, antifungal, and bioinsecticides. Elephantopus scaber can be potentially grown...

The hepar is an organ that has a complex and vital role, which can be damaged. Hepar damage can be seen from the condition of the cells. His study aimed to provide a histological description of mice hepar (Mus musculus L.) that was indicated by pre-type 2 DM (pre-type 2 DM) after the treatment of red...

Pest control in soybean field in general still uses synthetic pesticide. Soil bacteria from pesticide-exposed field are potentially able to decompose pesticide residue in during certain period of time. This research aimed to find out the potency of isolated endemic bacteria from soybean field in Jombang,...

One of nanogold uses is as leprosy drug, because it has activity to increase cell proliferation and collagen biosynthesis. These two activities are necessary in the process of recovery and closure of wounds, including in leprosy. Nanosilver can act as anti-bacterial material, including against leprosy...