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PROSIDING SEMINAR KIMIA
Published by Universitas Mulawarman
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Chemistry
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Articles 50 Documents
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Search results for , issue "PROCEEDING OF INTERNATIONAL CONFERENCE 2015" : 50 Documents clear
RELATIONSHIP BETWEEN STUDENT’S IMAGINATION ABILITY AND CONCEPTION ON ATOMIC STRUCTURE CONCEPTS Helda -
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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Abstract

Atomic orbital concept is a difficult subject for many high school and beginning undergraduate students, as it includes mathematical concepts not yet covered in the school curriculum. It requires certain ability for abstraction and imagination.The ability of imagination is one of mental model attributes affecting on student’s conception. This study aimed to identify imagination ability of student who had misconception and examine relationship between student’s imagination ability and conception in atomic structure concepts. The object of this research was 130 students of eleventh grade of SMAN Sumber rejo and SMAN Model Terpadu, Bojonegoro. Student’s misconception was determined based on the results of conceptual understanding (atomic structure) test. The student’s imagination ability was determined through the imagination diagnostic test that has been qualified in terms of validity and reliability. It was categorized into three levels, namely, high as level 1, moderate as level 2, low as level 3. The burden of student’s misconception was categorized into three levels involving low, middle, and high. Determining of it used central tendency (mean) and dispersion (standard deviation). There were three main result of this research. First, students who had misconception have varying abilities to imaginating in all levels (level 1 to level 3). Second, the average percentage of students who had misconception with low, middle, and high level of imagination abilityare 81.3, 76.7, and 47.9 % respectively. Third, based on the results of X2 analysis, it was obtained p-value 0.019, less than α = 0.05. It means that there was relation significantly between the level of student’s imagine ability and burden misconception level. Students having low imagine ability had the high possibility for possessing misconception in atomic structure concepts.
KNOWLEDGE HISTORY MAPPING OF STUDENTS OF PROSPECTIVE CHEMISTRY TEACHERS TO MOVE TACIT KNOWLEDGE TO ACCOUNTABLE EXPLICIT KNOWLEDGE Kurroti A’yun
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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Abstract

Students of prospective chemistry teacher need to be freed from misconceptions hidden in their tacit knowledge by moving it into explicit knowledge. Overcoming misconceptions is conducted by mapping their tacit knowledge through misconceptions detection test supported by assessment of learning styles. The combined tests aim to adjust the program for each student. Once their level and type of misconceptions are detected, the students are given misconceptions therapy by utilizing peer cooperation to fill in explicit knowledgemapping table. The mapping table is in accordance with method and practice of teaching adult learners (andragogy). Andragogy is used as underlying theory of teamwork in completing explicit knowledge mapping table because university students’ learning motivation is different from that of school students’. University students are in transition to adult age who seeks knowledge not only for gaining knowledge but also for implementing it in life after college.
SYNTHESIS CHITOSAN-ETHYLENE DIAMINE TETRA CETATE CHELATING RESIN ISOLATED FROM WINDU SHRIMP’S (Penaeus monodon) SHELL WASTE Marvin Horale; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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A researchon the utilization of shrimp shell waste are abundan tin the province of East Kalimantan as the source of chitosan and synthesis of the derivative chelating chitosan-ethylene diamine tetra acetate (EDTA) resin and the retention of characterization for Cu(II) ions has been carried out. Chitin were obtained from Windu Shrimp’s (Penaeus monodon) shell through three ways, are deproteination, demineralitation and depigmentation. The obtained chitin were deacetylated with sodium hydroxide at temperature 150-160˚C during 1 hour to obtained chitosan, with contain was 64.4%. Synthesis chitosan-EDTA resin can be done by coupling reacts between diazonium ion from diazotation chitosan with EDTA at temperature 1-3˚C during 1 hour, the product of 70% yield was obtained. The Chitosan-EDTA resin was synthesized has characterization by using FT-IR spectroscopic and scanning electron microscope, shows the spesific functional groups of the resin.
THE EFFECT OF APPLICATION OF 5E LEARNING CYCLE MODEL COMBINED NUMBERED HEAD TOGETHER (NHT) TOWARD CHEMISTRY LEARNING OUTCOMES ON THE SUBJECT OF SALT HYDROLYSIS IN XI SCIENCE STUDENTS AT SENIOR HIGH SCHOOL 1 TANAH GROGOT ACADEMIC YEAR 2014/2015 Yuni Kurnia; Usman -; Ratna Kusumawardani
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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This study aims to determine the effect of application of 5E learning cycle modelcombined numbered head together (NHT) toward chemistry learning outcomes on the subject of salt hydrolysis in XI science students at Senior High School 1 Tanah Grogot academic year 2014/2015. The method is used in this study is experimental method. Samples were students of class XI Science 4 as an experimental class-treated with 5E learning cycle model combined numbered head together (NHT) and the students of class XI Science 3 as control class treated with direct instructional models. Obtaining the average value of 84,4 post-test experimental class and control class 73,8. Data analysis process two groups using t-test results obtained 3,24 ttest and ttable at 5% significance level of 1,67, then tcalculation> ttable. The results of this study indicate that there are. The effect of the 5E learning cycle modelcombined numbered head together (NHT) toward chemistry learning outcomes on the subject of salt hydrolysis in XI sains students at Senior High School 1 Tanah Grogot academic year 2014/2015.
Chemistry Education University of Mulawarman Muhammad Iksan
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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Research has been done on the Virtual Labs as a limited means of chemical laboratories in schools, this study aims to determine how much student motivation in the material titration using a virtual lab. In the acid-base titration study using virtual labs can motivate students more enthusiastic in learning teaching activities. The result is obtained after a study conducted using virtual labs and data obtained from the questionnaire and interview. After doing learning with virtual labs can be concluded motivation of students categorized as very high.
MISCONCEPTION RESISTANT LOAD AND INPUT DIMENSION OF STUDENT’S LEARNING STYLES ON CHEMICAL EQUILIBRIUM CONTENT Septyadi David Eka Aryungga
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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The purpose of this research was to determine the relationship of misconception resistant loadand input dimension of student’s learning styles on chemical equilibrium content. This research was a quantitative research using the ex post facto. The targets of this research is the students who have misconception resistant on chemical equilibrium content in SMAN 1 Kandangan, Kediri and SMAN 1 Sumenep identified conception by Certainty of Response Index (CRI) method. From 197 students, 97 students identified misconceptions resistant. Students who have misconceptions resistant administered tests of learning style on the dimension Input according to Felder and Silvermen. Misconception resistant load is categorized into three levels: low, medium, and high. The categorizing use central tendency (mean) of 6.80% and a standard deviation (standard deviation) of 4.44%. Identification ofthe student’s learning styles using instruments adopted from Felder and Silverman and analyzed with their scale. The conclusions that can be drawn from this research is on the chemical equilibrium content (1) the number of students who have misconception resistant are vary, (2) misconception resistant loadand learning styles on the input dimensionare vary, and (3) the student’s learning styles on the input dimension does not signifiacantlyaffect their misconception resistant load.
EFFECT OF COOPERATIVE LEARNING TYPE INVESTIGATION GROUP (GI) MODEL WITH EXPERIMENTAL OF COGNITIVE LEARNING OUTCOMES ENVIRONMENTAL SCIENCE EDUCATION STUDY PROGRAM BIOLOGY Sri Purwati
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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This study aims to determine the effect of learning model Group Investigation (GI) with the experimental method on cognitive learning outcomes of students. The study population was all students of biology education second semester, Academic Year 2014/2015. The sample in this study was determined by cluster random sampling technique consists of two classes namely class A (treatment) using Group Investigation learning model (GI) and class B (control). Data collection techniques using test techniques to get the data the cognitive learning. This type of research is a quasi experimental study. Design research in this study using a pretest-posttest design. Data analysis techniques in this study using statistical analysis techniques with separated variance t test. Cognitive learning outcomes the average value of class A (treatment) 78.09 70.95 while the control class. Results of t-test showed significant value 0:03 <0:05 so that we can conclude the learning model Group Investigation (GI) effect on the cognitive learning Environmental Science Biology Education Program.
Visible Learning For Teachers Walter Wagner
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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Data Structur of visible Learning
THE DIFFERENCE OF COGNITIVE LEARNING OUTCOMES BETWEEN STUDENTS WHO LEARNED BY USING PROBLEM SOLVING AND PROBLEM POSING LEARNING MODEL IN SALT HYDROLYSIS MATERIAL Dian Eka Wati; Arif Sholahuddin
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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This study aims to determine the differences of conceptual understanding, problem-solving skills, and to know the students’ response to implementation of problem posing and problem solving learning model in salt hydrolysis material. This quasi-experimental research used pre-test-post-test comparison group design were took place at class XI student of SMAN 6 Banjarmasin. By using t-test analysis, this research showed that there are differences in conceptual understanding and problem solving skills significantly between students learned by using problem posing and problem solving learning model. The students’s cognitive learning outcomes who learned by using problem posing better than who learned by using problem solving learning model. Students gave a positive response to implementation of the both learning models.
THE IMPLEMENTATION OF SETTLEMENT SERVICES AND DISTRIBUTION IN GUIDANCE AND COUNSELING Sestuningsih MR
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
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The purpose of this research is to find out the implementation of settlement services and distribution on students of class IX of public Junior High School (SMPN) 22 Samarinda. This research is a descriptive qualitative where the focus of the research is the implementation of settlement services and distribution. Method of data collecting uses interview, observation and documentation technique. The technique of data analysis of the research consists of four components namely data collecting, data simplifying, data description and conclusion. The result of this research argues that implementation of settlement services and distribution on student of grade IX of SMP N 22 Samarinda has been comprehensively and appropriately conducted in accordance with the programs.

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