scholarly journals Mental Model of Prospective Chemistry Teachers on Electrolyte and Nonelectrolyte Solutions

2021 ◽  
Vol 1115 (1) ◽  
pp. 012064
Author(s):  
I W Suja ◽  
I K Sudiana ◽  
I W Redhana ◽  
I B N Sudria
Keyword(s):  
Mental Model ◽  
Chemistry Teachers ◽  
Nonelectrolyte Solutions

scholarly journals MENTAL MODEL OF PROSPECTIVE CHEMISTRY TEACHER ON EQUILIBRIUM CONSTANT AND DEGREE OF DISSOCIATION

2019 ◽  
Vol 3 (2) ◽  
pp. 249-262
Author(s):  
Anggra Prasetya Cahya ◽  
Antuni Wiyarsi ◽  
Anti Kolonial Prodjosantoso
Keyword(s):  
Equilibrium Constant ◽  
Mental Model ◽  
Chemistry Teacher ◽  
Scientific Model ◽  
Reaction Conditions ◽  
Study Program ◽  
Chemistry Teachers ◽  
Degree Of Dissociation ◽  
Reaction Coefficient ◽  
Dissociation Degree

MODEL MENTAL CALON GURU KIMIA PADA KONSEP TETAPAN KESETIMBANGAN DAN DERAJAT DISOSIASIAbstrakPenelitian ini bertujuan untuk mengeksplorasi model mental calon guru kimia pada konsep tetapan kesetimbangan dan derajat disosiasi. Penelitian ini menggunakan jenis penelitian kualitatif eksploratif. Penelitian dilaksanakan pada mahasiswa semester lima di Program Studi Pendidikan Kimia Universitas Riau. Hasil penelitian menunjukkan bahwa model mental mahasiswa sebagai calon guru kimia pada konsep tetapan kesetimbangan terbagi menjadi enam model yang tergolong mengalami miskonsepsi yaitu kekurangpahaman mengenai kesetimbangan heterogen, kesalahan penulisan persamaan Kp, pemahaman tentang nilai Kc bergantung pada pangkat dari koefisien reaksi pada kondisi reaksi yang sama, kesalahan menentukan satuan tetapan kesetimbangan, kesalahan menghitung Δn, dan tidak mengetahui koefisien reaksi zat yang tidak tertulis angka. Adapun model mental calon guru kimia pada konsep derajat disosiasi terbagi menjadi tiga yaitu model saintifik derajat disosiasi, model tanpa pengertian disosiasi, dan model kesalahan jumlah mol awal. Kata kunci: model mental, calon guru kimia, tetapan kesetimbangan, derajat disosiasiAbstractThis study was aimed at exploring the mental model of prospective chemistry teacher on the concepts of equilibrium constant and the degree of dissociation. This study used explorative qualitative research model. The research was conducted at the fifth semester students in the Chemistry Study Program at Riau University. The results show that the mental model of students as prospective chemistry teachers on the concept of the equilibrium constant is divided into six models that are classified as experiencing misconceptions: the lack of understanding about heterogeneous equilibrium, error writing in Kp equation, misunderstanding of the value of Kc depends on the rank of the reaction coefficient under the same reaction conditions, the error of determining the unit of equilibrium constant, the error of calculating Δn, and the lack of understanding regarding to the reaction coefficient of an unwritten number of substances. The mental model of prospective chemistry teachers on the concept of dissociation degree is divided into three: the scientific model of dissociation degree, the model without understanding dissociation, and the initial mole number error model.

scholarly journals MODEL MENTAL SISWA KELAS X SMA LABORATORIUM UNDIKSHA SINGARAJA TENTANG IKATAN ION DAN IKATAN KOVALEN

2018 ◽  
Vol 2 (2) ◽  
pp. 53
Author(s):  
Ni Luh Yuni Ari Pratiwi ◽  
I Wayan Suja ◽  
I Nyoman Selamat
Keyword(s):  
Mental Models ◽  
Learning Strategies ◽  
Mental Model ◽  
Covalent Bonds ◽  
Chemistry Teachers ◽  
Ionic Bonding ◽  
Lack Of Information ◽  
Type Data ◽  
Information Errors ◽  
Probing Questions

ABSTRAKPenelitian ini bertujuan untuk mendeskripsikan dan menjelaskan profil model mental siswa, serta menganalisis faktor-faktor yang memengaruhi terbentuknya model mental alternatif siswa kelas X MIA di SMA Laboratorium Undiksha Singaraja pada materi ikatan ion dan ikatan kovalen. Penelitian ini menggunakan pendekatan mix methods, jenis sekuensial. Pengumpulan data dilakukan dengan observasi, tes model mental, dan wawancara. Instrumen yang digunakan adalah tes diagnostik pilihan ganda dua tingkat dan wawancara dengan pertanyaan menyelidik. Hasil penelitian menunjukkan persentase siswa yang memiliki model mental ilmiah tentang ikatan ion dan kovalen sebanyak 53,33% model mental alternatif sebanyak 38,89%, dan 7,78% tidak memberikan tanggapan. Faktor-faktor yang memengaruhi terbentuknya model mental alternatif meliputi kekurangan informasi, kekeliruan penalaran, dan buku teks kimia yang digunakan siswa sebagai sarana belajar. Sehubungan dengan temuan tersebut, guru kimia di SMA perlu menerapkan strategi pembelajaran yang tepat untuk mengajarkan ketiga level kimia secara utuh.Kata Kunci: ikatan ion, ikatan kovalen, model mental, model mental alternatifABSTRACTThis research was aimed to describe and explain the profile of mental model student’s, and analyze the factors that influence the formation of alternative mental models of class X MIA students at SMA Laboratorium Undiksha Singaraja about ionic bonding and covalent bonds material. This research is a mix method approaches in research, a sequential type. Data collection is done by observation, mental model tests, and interviews. The instrument used in this study was a diagnostic test two tier and interview with probing questions. The results showed the percentage of students who experienced a scientific mental model of ion bonds and covalent bonds of 53.33% of students, had an alternative mental model of 38.89%, and as many as 7.78% did not have a mental model. Factors that influence the formation of alternative mental models include lack of information, errors of reasoning, and chemical textbooks that students used. Related with that research, chemistry teachers in high schools need to apply appropriate learning strategies in the process of learning chemistry.Keywords: ionic bonding, covalent bonding, mental model, mental model alternative

Pengembangan Media Pembelajaran PowerPoint Interaktif Berbasis Inkuiri Terbimbing pada Materi Larutan Elektrolit dan Nonelektrolit Kelas X SMA/MA

2021 ◽  
Vol 2 (2) ◽  
pp. 76-84
Author(s):  
Siti Aisyah Nasution ◽  
Syamsi Aini
Keyword(s):  
Test Item ◽  
Chemistry Department ◽  
Guided Inquiry ◽  
K Value ◽  
Chemistry Teachers ◽  
Symbolic Representations ◽  
Nonelectrolyte Solution ◽  
Teachers And Students ◽  
Very High ◽  
Nonelectrolyte Solutions

Electrolyte and nonelectrolyte solutions are one of the materials in SMA/MA class X chemistry. The materials of electrolyte and nonelectrolyte solutions can be understood well through their macroscopic, submicroscopic, and symbolic representations. This study aims to develop interactive PowerPoint learning media based on guided inquiry on electrolyte and nonelectrolyte solution material for class X SMA/MA which is in accordance with the characteristics of the material and the demands of the 2013 curriculum. (define, design, develop, and disseminate). This research is limited to the develop stage. Testing the validity and practicality of interactive PowerPoint learning media based on guided inquiry on electrolyte and nonelectrolyte solution material using an instrument in the form of a questionnaire. The subjects of the validity test of this interactive PowerPoint learning media were three chemistry department lecturers and two MAN chemistry teachers. The practicality test subjects of this interactive PowerPoint learning media were two MAN 5 chemistry teachers and twenty MAN 5 Mandailing Natal students. The data obtained from the questionnaire were processed using the kappa moment to obtain the k value of each validity and practicality test item. The interactive learning media of electrolyte and nonelectrolyte solutions produced in this study had a validity k value of 0.86 and practicality by teachers and students obtaining k values of 0.895 and 0.89, with very high criteria of validity and practicality. Larutan elektrolit dan nonelektrolit merupakan salah satu materi dalam kimia SMA/MA kelas X. Materi larutan elektrolit dan nonelektrolit dapat dimengerti dengan baik melalui representasi makroskopik, submikroskopik, dan simboliknya. Penelitian ini bertujuan untuk mengembangkan media pembelajaran PowerPoint interaktif berbasis inkuiri terbimbing pada materi larutan elektrolit dan nonelektrolit  kelas X SMA/MA yang sesuai dengan karakteristik materi dan tuntutan kurikulum 2013. Penelitian yang dilakukan termasuk jenis penelitian pengembangan (research and development) dengan model 4-D (define, design, develop, dan disseminate). Penelitian ini dibatasi sampai tahap develop. Pengujian validitas dan praktikalitas media pembelajaran PowerPoint interaktif berbasis inkuiri terbimbing pada materi larutan elektrolit dan nonelektrolit menggunakan instrumen berupa angket. Subjek uji validitas media pembelajara PowerPoint interaktif  ini adalah tiga orang dosen jurusan kimia dan dua orang guru kimia MAN. Subjek uji praktikalitas media pembelajaran PowerPoint interaktif ini adalah dua orang guru kimia MAN 5 dan dua puluh orang siswa MAN 5 Mandailing Natal. Data yang dihasilakan dari angket diolah memakai momen kappa untuk memperoleh nilai k setiap item uji validitas dan praktikalitas. Media pembelajaran interaktif larutan elektrolit dan nonelektrolit yang dihasilkan pada penelitian ini memiliki nilai k kevalidan 0,86 dan kepraktisan oleh guru dan siswa memperoleh nilai k 0.895 dan 0.89, dengan kriteria kevalidan dan kepraktisan sangat tinggi.

Antecedents of learners' mental model development

2008 ◽  
Author(s):  
Nicole Kohari ◽  
Robert Lord ◽  
Joelle Elicker ◽  
Steven Ash ◽  
Bryce Hruska
Keyword(s):  
Mental Model ◽  
Model Development

Visually Impaired Users' Mental Model and Navigation Behavior on News Web Site

2013 ◽  
Author(s):  
Bavani Ramayah ◽  
Azizah Jaafar ◽  
Noor Faezah Mohd Yatin
Keyword(s):  
Mental Model ◽  
Web Site ◽  
Visually Impaired

PELAKSANAAN SUPERMIK PINTER UNTUK MENINGKATKAN KOMPETENSI GURU DALAM MENYUSUN RENCANA PELAKSANAAN PEMBELAJARAN BERBASIS KURIKULUM 2013 DI SMP BINAAN KOTA DUMAI

2019 ◽  
Vol 3 (4) ◽  
pp. 790
Author(s):  
Yusnida Yusnida
Keyword(s):  
Middle School ◽  
Action Research ◽  
Lesson Plans ◽  
Teacher Competence ◽  
Chemistry Teachers

Based on the problems faced by teachers in the preparation of the 2013 curriculum-based lesson plans, the purpose of this study is to improve the competence of teachers in preparing 2013 curriculum-based lesson plans by implementing supermic pinter. The design of this study used school action research conducted on 6 chemistry teachers in the target schools in Dumai. The results showed that the implementation of supermic pinter can improve teacher competence in preparing 2013 curriculum-based lesson plans, where in the first cycle the percentage of teacher competence was 60% with sufficient categories and increased to 84% with a very good category in cycle II. Based on the results of the study it can be concluded that the implementation of smart supermic can improve the competence of teachers in preparing plans for the implementation of 2013 curriculum-based learning in the Dumai City-assisted Middle School.

FAKTOR PENDUKUNG DAN PENGHAMBAT DALAM PROSES PERUBAHAN ORGANISASI PADA POLITEKNIK KESEHATAN KEMENKES PALANGKA RAYA

2017 ◽  
Vol 13 (2) ◽  
pp. 119-128
Author(s):  
Nang Randu Utama
Keyword(s):  
Mental Model ◽  
Teaching And Learning ◽  
Learning Technology ◽  
Teaching Aids ◽  
Inhibiting Factors ◽  
Inhibiting Factor ◽  
Management Perspective ◽  
The Republic ◽  
Technical Guidance

This study aims to obtain a description of the supporting and inhibiting factors in the process of organizational change of education based on management perspective that occurs in the scope of higher health education of the Ministry of Health of the Republic of Indonesia. This study used a qualitative approach by conducting case study at Palangka Raya Health Polytechnic. The research results are as follows: (a) Supporting factor that must be there is the existence of a manual or technical guidance in organizing the organization; (b) Whereas the inhibiting factor is the old habits, the mindset, the mental model is still inhibiting from the organizers and members of the organization; (c) The inhibiting factor is the existence of selfishness of each highly visible party; (d) Inhibitors may also occur if there are still "little kings" and selfishness from each of the former institutions; (e) Other issues that support in this process of change are in terms of facilities and infrastructure, namely the availability of buildings and land; (f) Another inhibiting factor is that in terms of educational qualifications, there are departments that do not meet, for example in the midwifery department there are still many average teachers with Diploma IV education background and non-linear education; (g) Inhibiting factors may also occur if the reason of seniority is always carried around; (h) The inhibiting factor is lack of human resources in using modern health equipment, including the use of teaching aids in accordance with the progress of science and teaching and learning technology.   Penelitian ini bertujuan untuk memperolah gambaran mengenai faktor pendukung dan penghambat dalam proses perubahan organisasi pendidikan yang ditinjau dari perspektif manajemen yang terjadi di lingkup organisasi pendidikan tinggi kesehatan Kementerian Kesehatan Republik Indonesia. Penelitian ini menggunakan pendekatan kualitatif dengan melakukan studi kasus pada institusi Politeknik Kesehatan Kemenkes Palangka Raya. Hasil penelitian adalah sebagai berikut: (a) Faktor pendukung yang harus ada yaitu adanya buku pedoman atau petunjuk teknis dalam penyelenggaraan organisasi; (b) Sedangkan yang menjadi faktor penghambat itu adalah kebiasaan lama, mindset-nya, mental model-nya masih bersifat menghambat dari para pengelola dan anggota organisasi; (c) Faktor penghambat yaitu adanya keegoisan masing-masing pihak yang sangat tampak; (d) Penghambat juga dapat terjadi apabila masih ada “raja-raja kecil” dan keegoisan dari masing-masing institusi yang dulu; (e) Perihal lain yang mendukung dalam proses perubahan ini adalah dari sisi sarana dan prasarana, yaitu tersedianya gedung dan tanah; (f) Faktor penghambat lain yaitu dari sisi kualifikasi pendidikan ternyata ada jurusan yang tidak memenuhi, misalnya di jurusan kebidanan masih banyak rata-rata tenaga pengajar dengan latar pendidikan Diploma IV dan pendidikannya tidak linear; (g) Faktor penghambat juga dapat terjadi apabila alasan senioritas selalu dibawa-bawa; (h) Faktor penghambat yaitu masih kurang kesiapan sumber daya manusia dalam menggunakan alat-alat kesehatan modern termasuk penggunaan alat bantu belajar mengajar yang sesuai dengan kemajuan ilmu pengetahuan dan teknologi pengajaran dan pembelajaran.

Sign in / Sign up

Export Citation Format

Share Document