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International Journal of Science and Applied Science: Conference Series

ijsascs
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Published by Universitas Sebelas Maret

ISSN : 25494627 EISSN : 25494635 DOI : -

Core Subject : Science, Education,

Chemistry Education Mathematics Physics

International Journal of Science and Applied Science: Conference Series is a scientific proceedings publication service for international conferences. Subject areas of this publication include: physics, biology, mathematics, chemistry, education, materials science, environmental science, bioscience, engineering and applied science. International Journal of Science and Applied Science: Conference Series is published by Universitas Sebelas Maret, Indonesia.

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Articles 45 Documents

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Search results for , issue "Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series" : 45 Documents clear

Feasibility analysis of micro hydro plant at nawangan village of pacitan district Diana Dellariam Bayu; Rintis Hadiani; Solichin Solichin
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

Nawangan Village of Pacitan District utilizes Kedung Pasang Micro Hydro Plant (MHP) as a power source, but the existing electricity power unable suffice the demand so it needs revitalization by calculating the new unit price and debit because of the previous reference already invalid. The problem is that the investment required for the construction of the MHP must provide benefits for a certain period. This study analyzed the ratio of power and energy potential of MHP with changes in pipe diameter and speed of existing turbines, and calculated the cost. The available power is currently at 112.5 kW and energy is 82150.66 kWh. The results of the analysis show that the power increase can be done up to 142,95 kW a year or equivalent 218%, the energy can be done up to 139.427 kWh a year, meanwhile the benefit is Rp44.566.169, increase Rp26.604.588,- from existing condition or equivalent 148,1% which is done by changing the diameter of penstock and the turbine. Economic analysis of Kedung Pasang MHP development plan shows NPV of Rp6.717.110,- that is greater than 0, the value of IRR is 11% greater than the interest rate set by Bank Negara Indonesia 46 of 10,25% and BCR value of 1,19 is greater than 1, thus the revitalization of Kedung Pasang MHP feasible to be implemented.

Android Used in The Learning Innovation Atwood Machines on Lagrange Mechanics Methods Shabrina Shabrina; Warsono Warsono; Heru Kuswanto
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

Android is one of the smartphone operating system platforms that is now widely developed in learning media. Android allows the learning process to be more flexible and not oriented to be teacher center, but it allows to be student center. The Atwood machines is an experimental tool that is often used to observe mechanical laws in constantly accelerated motion which can also be described by the Lagrange mechanics methods. As an innovative and alternative learning activity, Atwood Android-based learning apps are running for two experimental variations, which are variations in load in cart and load masses that are hung. The experiment of load-carrier mass variation found that the larger load mass in the cart, the smaller the acceleration experienced by the system. Meanwhile, the experiment on the variation of the loaded mass found that the larger the loaded mass, the greater the acceleration experienced by the system.

The Comparison of Cooperative Learning Model Viewed from Students’ Emotional Intelligence Ahmad Junaedi; Budiyono Budiyono; Isnandar Slamet
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

This research aimed to know the different influence of each learning model, emotional Intelligence, and interaction between those two elements toward the students’ achievement in mathematic. This is an experimental study within the 3x3 factorial design. The populations of this study were VII grade students of State Junior High Schools (SMP) in Surakarta city in academic year of 2016/2017. The samples of this study were students of SMPN 8 Surakarta, SMPN 16 Surakarta, and SMPN 20 Surakarta which were taken by stratified cluster random sampling. The instruments to collect the data were achievement test, questionnaire and documentation. The technique to analyze the data was variance analysis of two ways with different cell. Based on the result, it can be concluded that: (1) TGT model produced the same good result as well as TAI model, TGT model produced the better achievement than the direct learning, and TAI model produced the better achievement than direct learning in the algebra material. (2) Students having high emotional intelligence are better than students having low and medium emotional intelligence in term of achievement in mathematics. The students having medium emotional intelligence are as low as students having low emotional intelligence in term of achievement in algebra material. (3) In each category of emotional intelligence, TGT model produced higher achievement than TAI model and direct learning model, TAI and direct learning model produced the equal result in algebra material. (4) In each learning model, students’ achievement of those who have high emotional intelligence are higher than those who have medium and low emotional intelligence, and students who have low and medium intelligence produced the equal achievement in algebra material.

The impact of natural science contextual teaching through project method to students’ achievement in MTsN Miri Sragen Anik Sunarsih; Sukarmin Sukarmin; Widha Sunarno
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

This study aims to describe the science learning skills among students’ who follow contextual learning through project method with experiment method. The population of this research is the students’ of class VII MTS Negeri Miri Kab. Sragen on the teaching period of 2016/2017. Cluster random sampling technique is used as sample. This research was designed using contextual teaching through project method as an independent variable. The results of this Improvement show that there is a difference in the achievement of students' learning skill that follows contextual learning through the project method with the experimental method with Fobs = 8,83 and significant number 4,04 (p <0,05). Based on these findings contextual learning through the project is one of the learning methods that provide a positive influence on improving the achievement of science learning skills. This ain increase, because CTL is can help students’ understand the material by relating the problems that exist. Project methods are used by students’ in solving problems.

Effectiveness of Jigsaw-Flash Learning Model in Geometry Material Imam Pakhrurrozi; Imam Sujadi; Ikrar Pramudya
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

This study aims to determine and describe the effectiveness of the use of jigsaw-flash learning model on geometry material. The jigsaw-flash learning model is a jigsaw learning model which is modified with adobe flash media. The research method used is mix method research with exploratory sequential strategy. This research was conducted in state junior high schools in Surakarta. Subjects in this study were the students of class VIII namely class VIII-2 as an experimental class and class VIII-3 as a control class selected by random sampling technique. The experimental class was taught with a jigsaw-flash learning model and the control class was taught with a jigsaw model. The procedures performed in this study include qualitative data collection and data analysis followed by quantitative data collection and data analysis. The researcher used interview method for collecting qualitative data. While quantitative data collection was conducted by test and the analysis technique used was t-test. The results of this study indicate that students feel more comfortable and interested in studying geometry material taught by jigsaw-flash model. In addition, students taught using the jigsaw-flash model are more active and motivated than the students who were taught using jigsaw models in studying geometric material. This shows that the use of the jigsaw-flash model can increase student participation and motivation. The results of this study also indicate that the increase in student achievement taught by the jigsaw-flash model which is indicated by t-test result t = 2,259 with df = 38. Based on the results, it can be concluded that jigsaw-flash model is more effective than jigsaw model. Therefore, teachers need to consider the use of jigsaw-flash learning model in learning geometry material.

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Contact Name Dewanta Arya Nugraha

Contact Email dewanta.an@gmail.com

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Journal Mail Official ijsascs@mail.uns.ac.id

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Location Kota surakarta, Jawa tengah INDONESIA

Abstract

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Abstract

Contact Name
Dewanta Arya Nugraha

Contact Email
dewanta.an@gmail.com

Phone
-

Journal Mail Official
ijsascs@mail.uns.ac.id

Editorial Address
-

Location
Kota surakarta,

Jawa tengah

INDONESIA