scholarly journals Peningkatan Hasil Belajar Siswa dengan Menerapkan Video Identifikasi Campuran Kopi Menggunakan Metode Spektroskopi UV-Visible

2019 ◽  
Vol 3 (1) ◽  
pp. 1-7
Author(s):  
Ummu Aiman ◽  
Nirwana Nirwana ◽  
M Lutfi Firdaus
Keyword(s):  
Electromagnetic Wave ◽  
Learning Outcomes ◽  
Electromagnetic Waves ◽  
Student Response ◽  
Average Score ◽  
Visible Spectroscopy ◽  
Post Test ◽  
Uv Visible ◽  
Strongly Agree ◽  
And Control

Abstract[Improvement of students learning outcomes by applying the video of coffee-mixture identification using UV-Visible Spectroscopy]. The purpose of this study was to evaluate the differences of student learning outcomes on electromagnetic wave materials and how students respond to the learning videos. This research was an experimental research which applies video coffee-mixture identification. The study was conducted in grade X islamic high school consisting of experimental class and control class. Based on the data analysis, the average post-test grade of the experimental class was 82.11 and the mean post-test control grade was 72.88 with tcount = 0,038 which is lower than the value of significance (0,05). The N-gain values of both classes indicate that the experimental class (0.72) is better than the control class (0.61). This suggests the adoption of a coffee-mixture identification video on electromagnetic wave material able to improve greater learning outcomes than control class that did not apply the video to the learning process. The result of questionnaire analysis shows that the student response to video implementation is good, as seen from the average score of responses of students who answered strongly agree at 40% level, while the answer agree at 53.83% level, not agree at 5.43% level and who answered very disagreeing 0.74% of all students. Keywords: Coffee-mixture; UV-Visible spectroscopy; electromagnetic waves; learning video.(Received August 15 2018; Accepted January 25, 2019; Published February 25, 2019) AbstrakPenelitian ini dilakukan dengan tujuan untuk menjelaskan perbedaan peningkatan hasil belajar siswa pada materi gelombang elektromagnetik dan bagaimana respon siswa terhadap video pembelajaran. Penelitian ini merupakan penelitian eksperimen yang menerapkan video identifikasi campuran kopi. Penelitian dilaksanakan di Madrasah Aliyah kelas X yang terdiri dari kelas eksperimen dan kelas kontrol. Berdasarkan hasil analisis data, rata-rata nilai post-test kelas eksperimen adalah 82,11 dan rata-rata nilai post-test kelas kontrol 72,88 dengan nilai thitung = 0,038 < nilai signifikansi (0,05). Adapun nilai N-gain dari kedua kelas menunjukkan bahwa pada kelas eksperimen  (0,72) lebih baik dari  pada kelas kontrol (0,61). Hal ini menunjukkan bahwa penerapan video identifikasi campuran kopi pada materi gelombang elektromagnetik dapat meningkatkan hasil belajar yang lebih besar dibandingkan kelas kontrol yang tidak menerapkan video pada proses pembelajarannya. Sedangkan hasil analisis angket diketahui bahwa respon siswa terhadap penerapan video adalah baik, terlihat dari nilai rata-rata respon siswa yang menjawab sangat setuju sebesar 40%, sedangkan yang menjawab setuju sebesar 53,83%, tidak setuju sebesar 5,43% dan  yang menjawab sangat tidak setuju sebesar 0,74% dari keseluruhan siswa. Kata kunci: Campuran kopi; spektroskopi UV-Vis; gelombang elekromagnetik; video pembelajaran

scholarly journals Peningkatan Hasil Belajar Siswa dengan Menerapkan Video Identifikasi Campuran Kopi Menggunakan Metode Spektroskopi UV-Visible

2019 ◽  
Vol 3 (1) ◽  
pp. 1-7
Author(s):  
Ummu Aiman ◽  
Nirwana Nirwana ◽  
M Lutfi Firdaus
Keyword(s):  
Electromagnetic Wave ◽  
Learning Outcomes ◽  
Electromagnetic Waves ◽  
Student Response ◽  
Average Score ◽  
Visible Spectroscopy ◽  
Post Test ◽  
Uv Visible ◽  
Strongly Agree ◽  
And Control

Abstract[Improvement of students learning outcomes by applying the video of coffee-mixture identification using UV-Visible Spectroscopy]. The purpose of this study was to evaluate the differences of student learning outcomes on electromagnetic wave materials and how students respond to the learning videos. This research was an experimental research which applies video coffee-mixture identification. The study was conducted in grade X islamic high school consisting of experimental class and control class. Based on the data analysis, the average post-test grade of the experimental class was 82.11 and the mean post-test control grade was 72.88 with tcount = 0,038 which is lower than the value of significance (0,05). The N-gain values of both classes indicate that the experimental class (0.72) is better than the control class (0.61). This suggests the adoption of a coffee-mixture identification video on electromagnetic wave material able to improve greater learning outcomes than control class that did not apply the video to the learning process. The result of questionnaire analysis shows that the student response to video implementation is good, as seen from the average score of responses of students who answered strongly agree at 40% level, while the answer agree at 53.83% level, not agree at 5.43% level and who answered very disagreeing 0.74% of all students. Keywords: Coffee-mixture; UV-Visible spectroscopy; electromagnetic waves; learning video.(Received August 15 2018; Accepted January 25, 2019; Published February 25, 2019) AbstrakPenelitian ini dilakukan dengan tujuan untuk menjelaskan perbedaan peningkatan hasil belajar siswa pada materi gelombang elektromagnetik dan bagaimana respon siswa terhadap video pembelajaran. Penelitian ini merupakan penelitian eksperimen yang menerapkan video identifikasi campuran kopi. Penelitian dilaksanakan di Madrasah Aliyah kelas X yang terdiri dari kelas eksperimen dan kelas kontrol. Berdasarkan hasil analisis data, rata-rata nilai post-test kelas eksperimen adalah 82,11 dan rata-rata nilai post-test kelas kontrol 72,88 dengan nilai thitung = 0,038 < nilai signifikansi (0,05). Adapun nilai N-gain dari kedua kelas menunjukkan bahwa pada kelas eksperimen  (0,72) lebih baik dari  pada kelas kontrol (0,61). Hal ini menunjukkan bahwa penerapan video identifikasi campuran kopi pada materi gelombang elektromagnetik dapat meningkatkan hasil belajar yang lebih besar dibandingkan kelas kontrol yang tidak menerapkan video pada proses pembelajarannya. Sedangkan hasil analisis angket diketahui bahwa respon siswa terhadap penerapan video adalah baik, terlihat dari nilai rata-rata respon siswa yang menjawab sangat setuju sebesar 40%, sedangkan yang menjawab setuju sebesar 53,83%, tidak setuju sebesar 5,43% dan  yang menjawab sangat tidak setuju sebesar 0,74% dari keseluruhan siswa. Kata kunci: Campuran kopi; spektroskopi UV-Vis; gelombang elekromagnetik; video pembelajaran

scholarly journals Use of -Based Interactive Learning Media Visuals in Science Learning

2021 ◽  
Vol 5 (4) ◽  
pp. 563
Author(s):  
Uswatun Hasanah ◽  
Putu Sudira
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Science Learning ◽  
Interactive Learning ◽  
Fundamental Problem ◽  
Interactive Media ◽  
Student Learning Outcomes ◽  
Student Response ◽  
Average Score ◽  
Post Test

The fundamental problem in implementing education at the education level is that the learning process is generally too oriented to mastery of subject matter, not to the substance, meaning, or value it contains. This study aims to analyze the success of using visual-based interactive media or image media in science learning. This type of research is an actual experiment with a quantitative approach. The subjects in this study were 50 students consisting of 2 separate classes, the number of female students was 30, and the number of male students was 20. The method of data collection in this study used student learning outcomes pre-test and post-test. The instrument used is a test of learning outcomes and student response questionnaires. The technique used to analyze the data is the descriptive qualitative and quantitative analysis and inferential statistics. The results showed that the average score of learning science after using visual-based interactive learning media was 75.93, with a standard deviation of 16.19. The lowest score for students is 40, and the highest score is 99. Visual-based interactive media is effectively used to improve student learning outcomes in science. The research implication is that visual-based interactive media can be used by teachers in teaching so that they can help students learn. 

scholarly journals PENGEMBANGAN EMORISH UNTUK MENINGKATKAN KETERAMPILAN PEMECAHAN MASALAH PADA PEMBELAJARAN FISIKA

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Andi Ichsan Mahardika ◽  
Hana Pertiwi ◽  
Sarah Miriam
Keyword(s):  
Problem Solving ◽  
Learning Outcomes ◽  
Learning Process ◽  
Student Response ◽  
Average Score ◽  
Test Design ◽  
Problem Solving Skills ◽  
Physics Learning ◽  
Post Test ◽  
Effectiveness Data

Penelitian ini bertujuan menghasilkan produk berupa EMORISH yang layak digunakan dalam pembelajaran Fisika untuk meningkatkan keterampilan pemecahan masalah peserta didik. Jenis penelitian yang digunakan adalah penelitian dan pengembangan melalui model ADDIE dengan desain uji coba one group pre-test post-test design. Subjek uji coba pada penelitian ini ialah 25 orang peserta didik kelas X program MIPA SMAN 6 Banjarmasin. Penilaian mengenai kelayakan produk yang dikembangkan ditinjau berdasarkan tiga aspek yang meliputi validitas, kepraktisan, dan efektivitas. Teknik pengumpulan data diperoleh melalui instrumen tes dan non-tes. Instrumen non-tes meliputi penilaian validator untuk mengukur validitas EMORISH dan angket respon peserta didik untuk mengukur kepraktisan EMORISH. Sementara instrumen tes meliputi penilaian hasil belajar peserta didik saat pre-test dan post-test untuk mengukur efektivitas EMORISH. Analisis data diperoleh melalui rata-rata uji validitas, rata-rata skor angket respon peserta didik, dan uji N-gain pada tes hasil belajar. Hasil penelitian menunjukkan bahwa EMORISH berkategori sangat valid dengan skor 3,54, EMORISH berkategori praktis dengan skor 2,86, EMORISH dinyatakan efektif berdasarkan perolehan n-gain dengan skor 0,37 dan berkategori sedang, sehingga EMORISH  layak digunakan dalam proses pembelajaran untuk meningkatkan keterampilan pemecahan masalah peserta didik.THE DEVELOPMENT OF EMORISH TO IMPROVE STUDENTS’ PROBLEM-SOLVING SKILLS IN PHYSICS LEARNING This research aims to produce EMORISH (electronic module on simple harmonic motion subject) which is eligible to be implemented in physics learning process to improve students' problem solving skills. This research used research and development through the ADDIE model within a one group pre-test post-test design. The research subjects in this study were 25 students X grade of MIPA program at Senior High School 6 Banjarmasin. The assessment of the eligibility of the product is based on three aspects including validity, practicality, and effectiveness. Data collection techniques were obtained through test and non-test instruments. Non-test instruments include validator assessments to measure EMORISH validity and student response questionnaires to measure EMORISH practicality. Meanwhile, the test instrument is student learning outcomes during pre-test and post-test to measure EMORISH effectiveness. Data analysis was obtained through the average validity test, students' questionnaire responses average score, and the N-gain score on learning outcomes test. The research showed that EMORISH was in the very valid category with a score of 3.54, EMORISH was in the practical category with a score of 2.86, EMORISH was declared effective based on the acquisition of n-gain with a score of 0.37 and was in the moderate category, so that EMORISH was eligible to be implemented in physics learning process to improve students' problem solving skills. 

scholarly journals Development of Biomagz Based on Local Wisdom on Biodiversity Material in High School

2019 ◽  
Vol 8 (2) ◽  
pp. 246-256
Author(s):  
Rina Wahyuningsih ◽  
Sri Sukaesih ◽  
Endah Peniati
Keyword(s):  
Experimental Design ◽  
Learning Outcomes ◽  
Large Scale ◽  
Student Assessment ◽  
Average Score ◽  
Small Scale ◽  
Learning Resources ◽  
Environmental Care ◽  
High Category ◽  
Post Test

This study aims to describe the types of learning resources used previously at SMA N 3 Salatiga, describe the feasibility of Biomagz Based on Local Wisdom, and test the effectiveness of Biomagz Based on Local Wisdom on learning outcomes and student’s environmental care attitude. The method used is research development (R & D). Products are validated by material and media validators, and revised before being tested. Small-scale trials (readability test) use 10 students from class X MIPA 1, while large-scale trials use class X MIPA 2 with the experimental design Pre-experimental Design with the type of Pre-test and Post-test One Group Design. The results of the study show the variety of learning resources used previously including biological, teacher, internet, biology books, and the environment around students. The Feasibility of Biomagz Based on Local Wisdom obtained an average score of 92.21% with very decent criteria. Large-scale trials with an average N-gain value 0.49 in the medium category, the average classical completeness is 85.29%, and the environment care attitude of students is based on the observation result of 92.9% with a high category and the result of the inter-student assessment is 86, 18% with a high category. Based on the results of this study, it can be concluded that Biomagz Based Local Wisdom is well worth and effective on learning outcomes and student’s environmental care attitude.

scholarly journals PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES AND TOURNAMENT (TGT) TERHADAP HASIL BELAJAR DASARLISTRIK DAN ELEKTRONIKA

2021 ◽  
Vol 1 (2) ◽  
pp. 123
Author(s):  
Dyan Novi Rezki Situmorang ◽  
Wanapri Pangaribuan
Keyword(s):  
Standard Deviation ◽  
Cooperative Learning ◽  
Learning Outcomes ◽  
Learning Model ◽  
Average Score ◽  
Homogeneous Distribution ◽  
Electrical Measurements ◽  
Model Type ◽  
Team Game ◽  
And Control

AbstrakJenis penelitian ini adalah penelitian quasi eksperimen. Populasi dalam penelitian ini adalah seluruh siswa kelas X semester genap SMK Swasta Imelda Medan Tahun Ajaran 2019/2020. Pengambilan sampel dilakukan dengan mengambil 2 kelas, yaitu kelas X TITL 1 sebagai kelas eksperimen dan kelas X TITL 2 sebagai kelas kontrol, yang masing-masing kelas berjumlah 28 orang siswa. Instrument yang digunakan untuk mengetahui hasil belajar siswa adalah tes hasil belajar dalam bentuk pilihan berganda dengan jumlah soal 30 butir. Hasil pengujian pretest sebelum diberi perlakuan yang berbeda, yaitu skor rata-rata di kelas eksperimen  (47) dengan standar deviasi 8,50 dan skor rata-rata di kelas kontrol (44,45) dengan standar deviasi 7,75. Pada pengujian data pretest kedua kelas diperoleh bahwa data kedua kelas berdistribusi normal dan homogen yang berarti memiliki kemampuan awal yang sama. Kemudian diberi perlakuan yaitu kelas eksperimen diajarkan dengan pembelajaran menggunakan model kooperatif tipe Team Game Tournament (TGT) dan kelas kontrol diajar dengan pembelajaran menggunakan model ekspositori. Setelah pembelajaran selesai diberikan posttest, diperoleh nilai posttest dengan hasil rata-rata kelas eksperimen (88,78) dengan standar deviasi 4,06 dan kelas kontrol (81,55) dengan standar deviasi 4,17. Dari hasil pengolahan data posttest diperoleh bahwa thitung=  6,40 dan ttabel = 1,67. Sehingga thitung > ttabel.Sehingga Ha diterima yaitu Model Pembelajaran Kooperatif Tipe Team Game Tournament (TGT)memberikan hasil belajar pada pelajaran dasar dan pengukuran listrik yang lebih tinggi daripada pembelajaran menggunakan model ekspositori pada siswa kelas X TITL SMK Swasta Imelda Medan.Kata Kunci: Pembelajaran Tipe Team Game Tournament, Model Pembelajaran Kooperatif AbstractEnglish translation. This type of research is quasi experimental research. The population in this study is all students of class X even semester of Imelda Medan Private Vocational School Year 2019/2020. Sampling is done by taking 2 classes, namely class X TITL 1 as an experimental class and class X TITL 2 as a control class, each of which totals 28 students. The instrument used to find out student learning outcomes is a test of learning results in the form of multiple choices with the number of questions 30 points. Pretest test results before being given different treatments, namely the average score in the experimental class (47) with a standard deviation of 8.50 and the average score in the control class (44.45) with a standard deviation of 7.75. In the pretest data test both classes it was obtained that the data of both classes are normal and homogeneous distribution which means it has the same initial capabilities. Then given the treatment that experimental classes are taught by learning using a cooperative model type Team Game Tournament (TGT) and control classes are taught by learning using an expository model. After the learning was completed, posttest scores were obtained with the average results of experimental classes (88.78) with a standard deviation of 4.06 and control classes (81.55) with a standard deviation of 4.17. From the results of posttest data processing obtained that thitung = 6.40 and ttabel = 1.67. So thitung > ttabel. So ha accepted, namely the Cooperative Learning Model Type Team Game Tournament (TGT) provides learning outcomes on basic lessons and higher electrical measurements than learning using the expository model in students of class X TITL SMK Swasta Imelda Medan.  Keywords: Team Game Tournament Type Learning, Cooperative Learning Model

scholarly journals PENGARUH METODE PRAKTIKUM BERBANTUAN FLASH TERHADAP HASIL BELAJAR SISWA PADA MATERI HIDROKARBON DI KELAS XI IPA SMA MUHAMMADIYAH PONTIANAK

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Salmauwati Salmauwati ◽  
Muhamad Agus Wibowo ◽  
Dedeh Kurniasih
Keyword(s):  
Learning Outcomes ◽  
Practical Method ◽  
Control Group ◽  
Control Groups ◽  
Lecture Method ◽  
Post Test ◽  
Quasi Experimental ◽  
Teaching Learning ◽  
And Control ◽  
Positive Effect

ABSTRACTThis study was initiated by the students’ low learning outcomes on Chemistry subject and the teachers’ preference in using lecture method in teaching learning process.This study aimed at 1) finding out the differences of students’ learning outcomes between the use of flash media-assisted practical method and lecture method on hydrocarbon class at grade XI MIA of SMA Muhammadiyah I Pontianak. Using quasi experimental design and Control Group Posttes Design, this study employed the students of grade XI MIA 2 as the samples of experiment group, andthe students of grade XI MIA 2 as the samples of control group. The data collection techniques used were measurement and observation. While the instruments employed were observation sheet and essay. TheU-Mann Whitneytest revealed that the post test score of 0,0140< 0,05 Ho was rejected, while the Ha one was accepted. It means that there was correlation of students’ learning outcomes between the experiment and the control groups. In addition, the effect size result was 1,086 > 0,8 and considered high which indicated the positive effect of flash media-assisted practical method in enhancing students’ learning achievement.Keywords: flash, learning outcomes, hydrocarbon, practical method

scholarly journals EFEKTIVITAS MODEL PEMBELAJARAN TWO STAY TWO STRAY PADA MATERI BILANGAN BERPANGKAT DI SMP AL-WASILAH

Sigma ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 78
Author(s):  
Mahsus Mahsus ◽  
Zainuddin Zainuddin ◽  
Dwi Ivayana Sari
Keyword(s):  
Data Analysis ◽  
Student Learning ◽  
Student Learning Outcomes ◽  
Learning Model ◽  
Student Response ◽  
Average Score ◽  
Response Data ◽  
Strongly Agree ◽  
Teacher Ability ◽  
Learning Analysis

This study aims to determine the ability of teachers to manage learning, student responses, student learning completeness with the two stay two stray learning model on the material of rank numbers. The type of research used is descriptive quantitative. The sample used is class IX SMP Al-Wasilah. Data analysis used data analysis on the ability of teachers to manage learning, analysis of student response data and analysis of student learning outcomes test data. Based on the results of data analysis shows that the results of the data analysis of the average score of the ability of teachers to manage learning using the two stay two stray learning model is 4.44. The data obtained on the level of teacher ability to manage learning is in the good category. Data analysis of the average score of students' positive responses to the two stay two stray learning model was obtained at 96.4%. The positive response data obtained by students are in the category of strongly agree. The results of the percentage of students' learning completeness classically were obtained at 81.25%. Thus, the classical student learning completeness data is >80%. It can be concluded that the two stay two stray learning model is effective.

scholarly journals THE EFFECT OF REPEATED READING STRATEGY IN TEACHING READING COMPREHENSION OF NARRATIVE TEXT AT THE EIGHT GRADE STUDENTSOF SMPN 36 PEKANBARU

ELT-Lectura ◽  
2018 ◽  
Vol 5 (2) ◽  
pp. 191-199
Author(s):  
Destina Kasriyati ◽  
Maharani Maharani
Keyword(s):  
Reading Comprehension ◽  
Repeated Reading ◽  
Reading Strategy ◽  
Narrative Text ◽  
Second Grade ◽  
Average Score ◽  
Generic Structure ◽  
Post Test ◽  
Receive Treatment ◽  
And Control

Based on the result of observation that students got some difficulties to understand the content of reading comprehension, particularly main ideas, detail information, vocabulary, identify information, word reference and generic structure. The purpose of this research was to find whether the students who received in class experiment of repeated reading strategy had different skill in reading comprehension than students who did not receive treatment of the strategy at the second grade of SMPN 36 Pekanbaru.  The design of this research was Experimental Research. This research was conducted on Jan 2018. The population of this research was the second grade of SMPN 36 Pekanbaru. The sample of this research were 2 classes as control and experiment class. Based on the test result, it was found that the average score of post-test was 85.33 and pre test was 71. It means that the result of post test was getting higher than pretest.  In conclusion, the use of repeated reading strategy could increase students reading comprehension in narrative text. There was different ability between experment and control class.

scholarly journals Utilization of Quizizz Educational Game Media to Increase Learning Interest and Achievement

2021 ◽  
Vol 4 (2) ◽  
pp. 307
Author(s):  
Rina Yuliana Pratama
Keyword(s):  
Learning Outcomes ◽  
Student Learning Outcomes ◽  
Educational Game ◽  
Average Score ◽  
Student Interest ◽  
Qualitative And Quantitative Analysis ◽  
Research Subjects ◽  
Fourth Grade Students ◽  
Post Test ◽  
Learning Interest

When explaining the material, the teacher only uses blackboard learning media and is monotonous. This has an impact on student learning outcomes are low. This study aims to analyze the effectiveness of the Quizizz Game learning media in increasing enthusiasm and learning outcomes. This type of research is classroom action research. The research subjects were fourth-grade students with 23 students. The data in this study were obtained through pretest, post-test questions contained in the Quizizz Game application from observations and documentation. The instruments used to collect data are questionnaires and tests. The technique used to analyze the data is descriptive qualitative and quantitative analysis. The results of the study were that students obtained a percentage of learning completeness of 43.47%. After being given action I, the average score was 72, with a learning completeness percentage of 60.86% in Cycle I. In Cycle II, the average score increased to 85 with a learning completeness percentage of 95.65%. From the analysis above, it can be concluded that the application of the Quizizz Game learning media can increase students' interest and learning achievement. This research implies that teachers can use the application of the Quizizz Game learning media to increase student interest and learning outcomes.

scholarly journals THE EFFECTIVENESS OF USING PECHA KUCHA TECHNIQUE TO PROMOTE STUDENTS’ SPEAKING SKILL

2021 ◽  
Vol 4 (1) ◽  
pp. 37
Author(s):  
Eva Faliyanti ◽  
Devi May Ratih
Keyword(s):  
Average Score ◽  
Control Group ◽  
English Department ◽  
Oral Test ◽  
Post Test ◽  
Speaking Skill ◽  
And Control ◽  
Academic Year ◽  
Experimental Group ◽  
Better Than

The aimed of this research is to test the effectiveness of using Pecha Kucha Technique in students’ speaking performance at fourth semester of English Department in Muhammadiyah University of Metro. Pecha Kucha is a presentation form of 20 pictures for 20 seconds and it is also called 20x20 presentations.The entire presentation always lasts for exactly 6 minutes and 40 seconds. The research method used in this research is an experimental research. The subjects of this research are the students at fourth semester of English Department in Muhammadiyah University of Metro academic year 2020. There are 21 students of control group and 21 students of experimental group. The research instrument used to collect the data in this research is an oral test. From the two classes, the experimental and control group, the measurement shows that increasing line of the speaking ability of the experimental group is higher than the control group. The result of pre-test score shows that the average score of the experimental group and the control group are 52.38 and 56.19. From the score of both groups, the result shows that the control group is better than experimental group. Then, the result of the post test of the experimental group is higher than control group; the average scores are 70,71 for experimental group and 62.38 for control group. It can be concluded that there is significant influence of using Pecha Kucha Technique in students’ speaking skill.

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