Seed kernel of Thevetia peruviana is non-edible material but a potential resource to produce lights of the lamp in local society of west Timor people. This implies that the seed makes it a probable feedstock for biodiesel production. In this report, the optimum condition for extraction of the crop oil...

Alternative conception is students' conception of scientific concepts that are inconsistent with the conception of scientists. Various studies show that alternative conceptions of chemical concepts occur in students, including acid-base concepts. Various identification of alternative conception methods...

Learning content of chemistry includes factual, conceptual, procedural, and metacognitive knowledge. To well master the learning content, students’ metacognition is required. Students’ metacognition can be formed and developed through learning. Metacognitive learning strategy is one of the strategies...

Nowadays, the intrusions often occur in a network system. One of ways that Intrusions can be prevented or detected is by using Intrusion Detection System. Therefore, IDS (Intrusion Detection System) is indispensable to detect intrusions in a network. In this paper, we will discuss the classification...

Rice production in Indonesia is important especially for national economy. Rice is the staple food for Indonesian, so Indonesia is the biggest rice consumers in the world, averaging more than 200 kilograms per head each year. Therefore, Indonesia needs to be aware of rice production systems because there...

Error in learning mathematics means an inappropriateness of someone in determining the solution of a problem, either in the concepts or its completion procedures. Semiotics means signs or symbols. The use of symbols is the concept of one's thinking in using symbols and representing certain meaning. Problem-solving...

The ability to think critically is an essential skill and becomes one of the primary goals in college. A person who can think critically will be able to use appropriate criteria to evaluate an argument. There must be clear evidence and accompanied by a plausible explanation. This study aims to investigate...

This qualitative descriptive study aimed to describe the profile of understanding layer of the Conic Section concept toward Mathematics Education Students 2016 of FKIP UKSW. The understanding layer includes eight layers, Primitive Knowing (Pk), Image Making (Im), Image Having (Ih), Property Noticing...

In this study, time dependent infiltration problems from periodic semicircular channels with root-water uptake function are considered. The considered problems are governed by Richards equation. To scrutinize the equation more conveniently, the equation was transformed into a modified Helmholtz equation...

Due to the abstract nature of mathematics, it is not possible to access mathematical objects without the use of representations. Representations can help to make mathematical ideas more concrete and available for reflection. Hence, they can help students to organize, record, and communicate their thinking....

In this paper, we introduce the notion of derivations for a trellis and investigate some related properties of this subject. We give some equivalent conditions under which a derivation is isotone for trellises. Also, we study xed points and de ne f -derivation on T and cartesian derivation on T1 T2.

Student’s capabilities are among the most commonly discussed research in higher education. In the Indonesian history, developing student capabilities is well-documented aligning with Patrap Trilokathe, a local wisdom-based education. This was initially raised by Ki Hadjar Dewantara which was then scrutinized...

Problem-solving skill is one of the competencies that must be achieved by vocational students. This study aimed to describe the problem-solving skill of students on the concept of momentum's conservation law. The participants of this study were 28 students of eleventh graders at SMK in Blitar in the...

Toll road construction is being intensively conducted by the government, especially in Jabodetabek. This makes the schedule of Jabodetabek toll road construction very urgent to solve due to the demands of the target of the completion of the development and it is feared to disturb the existing road condition....

The learning motivation and science concepts comprehension must be fostered by students in the department of primary school teacher education. That is due to the diversity of high school background of this department students. This research aimed to determine the validity of ARICESA-based learning materials...

Mathematical critical thinking is an essential ability for prospective teachers. The prospective teachers must be able to use the ability to think critically well so that students who are taught can also have good mathematical critical thinking skills. However, sometimes prospective teachers have a mistake...

Empowering the character of healthy living is a vital effort to improve the quality of public health, particularly in developing the quality Indonesian human resources. However, the factual knowledge and awareness about the importance of healthy living among the poor is still very low. The aim of this...

An ordinary differential equation is a branch of mathematics that is always interesting to be learned and developed due to its numerous variations in both the theory and its application. In general, the most discussed differential equation is the ordinary differential equation that has the natural number...

Sources of reading on Sustainable Reserve Food Garden (SRFG) which is still less become the causes of low environmental knowledge and environmental awareness behavior. Based on this analysis, booklet development on SRFG is used as a source of reading for the society. The research is developmental research...

The mathematical communication skill is an important thing to support the teachers’ role as facilitators in helping students to master 21st-century skills. The efforts to improve the skill must be well prepared since they are still as prospective teachers. The communication skill involves some aspects....

Self-efficacy is the student’s belief in the ability to perform necessary tasks or actions to achieve a particular outcome. Self-efficacy can influence students’ feelings, ways of thinking, motivations, academic achievements, and social behaviors. The higher self-efficacy that students have, the higher...

The result of observations on several high schools in Malang regency showed that the teachers had not implemented metacognitive strategies in Biology learning process. The general impact is the students have not empowered their metacognitive skills such as awareness of planning, monitoring, and evaluating...

This study aims to describe the students' thinking interference of global type in solving permutation problem based on information processing theory. The subjects were 16 students of the Mathematics Department, Universitas Negeri Malang. The results showed that 50% of student’s experience global interference...

A concept maps is one of the teacher's tools to measure students’ prior knowledge, encourage them to perform meaningful learning and to increase their achievement. It also helps students to overcome difficulties in understanding a concept, empower their critical, creative and metacognitive thinking skills....

The development of the 21st century requires learners to have a sophisticated knowledge insight in the era of global competition. The 21st-century generation must master high-order thinking skills. One of them is critical thinking skills. Critical thinking skills are skills that learners must possess....

Rebuttal is an essential aspect in scientific argumentation skill. Level of scientific argumentation skill depends on the quality of the rebuttal process. Students who can produce a high-quality rebuttal to defend their claims are proved higher level of scientific argumentation skill than the student...

An endeavour to improve the quality of education have been made by improving the implementation of learning. The effort has not been enough to show satisfactory results. This can be seen from the mathematics learning achievement shown by the students still low. Based application PAMER UN 2017 by PUSPENDIK,...

This study is a research and development (R&D) which refers to 4-D development model. The objective of this study is to produce a valid, practical, and effective scientific approach-based learning module in Plantae concept. The study employed descriptive qualitative and descriptive quantitative approaches....

This research is qualitative research, aimed to find out the profile of male students' intuition of mathematics education in solving math problems. Methods of data collection with the provision of mathematical problem solving using Polya stages, then conducted interviews on the subject in depth. In the...

This study was intended to explore the improvement of scores that measure students’ scientific explanation of light through phenomenon-based learning. Students conduct an investigation and make an explanation about the phenomenon being observed. The study employed mixed methods with an embedded experimental...

This paper presents a new approach to determine the difference in problem-solving abilities between students treated with a concept attainment model and those treated with discovery learning model. This study was experimental research. The population of the study was 12th graders of Science in the 1st...

Science as a field of science that investigates the universe is closely related to natural phenomena. Natural phenomena exist holistically, not independent, and interrelated. Why is integrated science learning so important? This multidisciplinary learning method can train students to think multidimensional,...

The needs of the 21st century in education need the creating of young people to have life skills. The life skills can be trained through the learning process and identified through student learning outcomes. Learning outcomes are one of the factors in successful learning. Therefore, a solution is needed...

The integrating of place-based education needs to make the learning activity more meaningful and make student can apply their knowledge to solve the real problem around them. The purpose of this research is to describe the integrating of place-based education in biology learning through inquiry to improve...

This study aims to observe the needs of handout as a teaching materials in the Mycology course at Biology Department, State University of Malang. The research sample were students of Biology Department at State University of Malang who has been passed for Mycology course. The qualitative data is a survey...

Critical thinking is one of the 4C skills of the 21st century have to be mastered by students to analyze the phenomena of science and think for the well being in the world. Some factors are argued as the key points to nurture the skill, such as the learning strategies, and the content of learning which...

Mathematics learning can stimulate the students to think critically and logically for the problem related to the real life. The initiation to mathematics learning for the first time at elementary. The aim of the research was to find out the need for cooperative learning model with Realistic Mathematics...

The purpose of science education is that students can individually master the science process skill and engage in inquiry. The basic science process skills consist of observing, communicating, classifying, measuring, inferring and predicting. Meanwhile, integrated science process skills are controlling...

Critical thinking studies were mostly aimed at improving critical thinking skills and placed a critical thinking disposition as a nurturing effect. Thus, critical thinking disposition is rare to practice including in learning Biology. Meanwhile, critical thinking disposition is required so that students...

Vehicle Routing Problem (VRP) is an issue for designing the route for distributing goods from one depot to a number of customers, in such way to minimize cost, every customer visited just once, all routes begin and ends at the depot, as well as the total demand of all customers on the route should not...

The pattern of perimeter magic triangles has not yet implemented by teachers for delivering mathematical reasoning. The purpose of this implementation is to describe learning practice for students of Elementary Education Master Program with a mathematics concentration. It is also as a part in mastering...

The general form of an geometric sequence is t, tp, tp2, tp3, … , tpn-1, …This sequence is one of integer sequences. The rule for determining the nth term is un = tpn-1. The specific sequence that is generated by this gemetric sequence is t, t, t, … [t times], (tp), (tp), (tp),… [(tp) times], (tp2),(tp2),(tp2),...

The proportion of a product defect is usually considered to be fixed, so as to control the quality of a product defect proportions using p control chart (based Binomial), but not necessarily the proportion of a product defect fixed (same), but having such distribution Beta distribution, it is often the...

The present paper aims to investigate the linear effect of cognitive conflict on the ability of the understanding mathematical concepts through the contextual learning model, and to examine the linear effect of cognitive conflict on the ability of problem-solving through the contextual learning model....

This research seeks to address the effect of extended triad learning model on the abilities of mathematical representation and to prove theorem when controlled by cognitive style covariate. This research applied the quasi-experimental method with a 2x2 factorial design. Data were analyzed by covariate...

This qualitative descriptive research has aim to describe the students' thinking skill profile of class VII-C of SMP Negeri 1 Salatiga on the topic of the division of integers based on SOLO Taxonomy. SOLO Taxonomy groups students' thinking skill levels into five levels, i.e., pre-structural, uni-structural,...