scholarly journals UPAYA MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS MELALUI METODE DISKUSI BERBANTUAN MICROSOFT OFFICE EXCEL

2018 ◽  
Vol 5 (3) ◽  
pp. 213-222
Author(s):  
Irena Puji Luritawaty

AbstrakPenelitian ini dilatarbelakangi oleh masih rendahnya kemampuan komunikasi matematis pada mahasiswa. Penelitian ini bertujuan untuk menelaah efektifitas metode diskusi berbantuan microsoft office excel dalam upaya meningkatkan kemampuan komunikasi matematika pada mahasiswa. Adapun populasi dalam penelitian ini yaitu mahasiswa tingkat II di salah satu perguruan tinggi swasta di kabupaten Garut, dengan sampel yaitu mahasiswa kelas IIB dan IIC. Instrumen dalam penelitian ini yaitu berupa tes kemampuan komunikasi matematis yang diujikan dalam pretest dan posttest. Analisis data yang dilakukan terhadap hasil pretest yaitu diawali dengan uji normalitas, kemudian uji homogenitas dan uji-t. sedangkan pada hasil posttest, analisis data diawali dengan uji normalitas kemudian uji Mann whitney. Secara garis besar, hasil penelitian ini menunjukan bahwa peningkatan kemampuan komunikasi matematis mahasiswa yang memperoleh pembelajaran dengan metode diskusi berbantuan microsoft office excel lebih baik daripada siswa yang memperoleh pembelajaran ceramah biasa.AbstractThis research is motivated by the poor ability on student mathematical communication. This study aimed to examine the effectiveness of the method of discussion aided microsoft office excel in an effort to improve communication skills of mathematics in students. The population in this study is the student level II in one of the private universities in Garut district, with a sample of students of class IIB and IIC. Instruments in this study are in the form of mathematical communication ability tests that were tested in the pretest and posttest. Data analysis was conducted on the results of a pretest that begins with normality test, then the homogeneity test and t-test. whereas the posttest results, data analysis begins with normality test later Mann Whitney test. Broadly speaking, the results of this study show that improvement of communication capabilities mathematical students who receive assisted learning with discussion method microsoft office excel better than students who received the usual lecture learning.

2018 ◽  
Vol 7 (2) ◽  
pp. 219-228
Author(s):  
Reni Nuraeni

AbstrakMatematika merupakan ilmu abstrak, untuk mempelajarinya diperlukan kemampuan yang memadai. Salah satunya memiliki kemampuan untuk mengkomunikasikannya dalam bentuk ide, simbol, maupun bahasa matematika. Selain itu, komunikasi merupakan bagian yang sangat penting dalam matematika. Untuk mengembangkan kemampuan komunikasi matematis diterapkan pembelajaran Group Investigation. Pembelajaran ini menekankan pada keaktifan mahasiswa ketika pembelajaran. Populasi dalam penelitian ini yaitu mahasiswa di salah satu perguruan tinggi swasta di Garut, dengan sampel dua kelas mahasiswa tingkat II yaitu kelas B sebagai kelas eksperimen dan kelas C sebagai kelas kontrol. Instrumen yang digunakan dalam penelitian ini berupa tes kemampuan komunikasi matematis, yang digunakan pada pretest dan posttest. Analisis data pada hasil pretest diawali dengan uji normalitas kemudian uji Mann Whitney. Sedangkan analisis data pada hasil posttest diawali dengan uji normalitas, uji homogenitas, kemudian uji t. Secara garis besar, hasil penelitian ini menunjukkan bahwa kemampuan komunikasi matematis mahasiswa yang mendapatkan pembelajaran Group Investigation lebih baik daripada mahasiswa yang mendapatkan pembelajaran konvensional. AbstractMathematics is an abstract science, to learn it required adequate capability. One of which has the ability to communicate it in the form of ideas, symbols, and math language. Besides, communication is a very important part in mathematics. To develop mathematical communication abilities applied Group Investigations learning. This lesson emphasizes student activeness. Population in this research were students in one private college in Garut, with sample of two classes of students of grade two that is class B as experiment class and C as control class. The instrument used in this research is a test of mathematical communication ability, used in pretest and posttest. Data analysis on pretest result begins with normality test then Mann Whitney test. While data analysis on posttest result begins with normality test, homogeneity test, and t test. In general, the results of this study indicate that the mathematical communication skills of students who get Group Investigation learning better than students who get conventional learning.


2018 ◽  
Vol 1 (4) ◽  
pp. 575
Author(s):  
Juliana Safitri ◽  
Luvy Sylviana Zanthy ◽  
Heris Hendriana

This research did from the low ability phenomena of mathematical communication of SMP in Purwakarta. The low skill ability of mathematical communication can be seen from the lack of students in completing the test of mathematical communication form to provided in the first research, the purpose of this research was to examined the improvement of CTL (Contextual Teaching and Learning) skill with traditional learning and the methodology of this research using quasi-experimental method which consist of two classes. The first is experiment class treated using CTL and the second is control class treated traditional learning. The population of the research taken was students of SMP Negeri 1 Babakan Cikao and a randomly selected sample of consist of 30 students of class VII A as the experiment. Class and 30 students of class VII D as control class. The instrument of this research used 6 items about mathematical communication description form, that has been tested the validity, reliability and distinguish of power form indexed difficulty. Based on the result of data analysis have concluded that the improvement of mathematical communication ability in SMP Negeri 1 Babakan Cikao by using CTL approach is better than traditional learning.


Author(s):  
Muhammad Rizal Usman

This research is motivated by the results of previous research which shows that students' mathematical communication ability is still not as expected. The focus of this research is to determine the improvement of students' mathematical communication ability as a result of the investigation of the Alberta model learning. This research is experimental research with the population of all students of one of the State Junior High School in Bandung. The sample of the research is the grade VII students of the school. Samples were 73 students, 36 students of experimental class and 37 students of the control class. Based on the results of data analysis, it can be concluded that: (1) The achievement of mathematical communication ability of students who gain learning inquiry model Alberta better than students who learn conventional, (2) Improve the ability of mathematical communication, the thinking of students who gain learning inquiry model Alberta better than students Gain conventional learning, and (3) there is a difference in improving the ability of mathematical communication thinking based on the category of early mathematical ability.Keywords: Mathematical Communication Ability, Alberta Model Inquiry


2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Marojahan Panjaitan ◽  
Regen Rafael Alviandi

ABSTRAK Penelitian ini bertujuan Untuk mengetahui apakah kemampuan komunikasi matematis siswa yang diajar dengan menggunakan model pembelajaran kooperatif tipe TTW lebih baik dari kemampuan komunikasi matematis siswa yang diajar dengan menggunakan model pembelajaran kooperatif tipe TSTS.  Sampel dalam penelitian ini adalah siswa kelas VIII-4 dan kelas VIII-2 dengan banyak masing-masing siswa ada kelas yang diteliti 40 orang. Kelas VIII-4 diberi model pembelajaran TTW dan kelas VIII-2 diberi model pembelajaran TSTS. Instrumen dalam penelitian ini berupa soal pre-tes dan post-tes yang bentuknya sama. Tes ini berbentuk essay test yang banyaknya 8 soal, sebelum tes kemampuan komunikasi diberikan kepada sampel terlebih dahulu tes divalidasi oleh validator. Jenis penelitian ini adalah eksperimen semu. Teknik analisis data yang digunakan adalah uji normalitas, uji homogenitas dan uji hipotesis. Hasil pretest dan postest di kelas VIII-4 secara berurutan adalah 54,60 dan 77,89. Hasil pretest dan posttest di kelas VIII-2 secara berurutan adalah 53,67 dan 71,32. Hasil pretest diuji t dua pihak dan didapat hasilnya bahwa kemampuan awal kedua kelas tersebut sama. Hasil ketuntasan kelas yang diberi model pembelajaran TTW adalah tuntas sedangkan   kelas yang diberi model pembelajaran TSTS tidak tuntas, hal ini ditunjukkan dari presentase ketuntasan kelas yang diberi TTW sebesar 85% sedangkan presentase ketuntasan kelas yang diberi TSTS hanya sebesar 55%. Pada uji hipotesis yang menggunakan uji t dengan menggunakan hasil dan postest di kedua kelas diperoleh 2,438 dan  =1,667. Karena , sehingga  ditolak dan  diterima sehingga diperoleh kesimpulan bahwa kemampuan komunikasi matematis siswa yang diajar dengan menggunakan model pembelajaran kooperatif tipe TTW lebih baik dari kemampuan komunikasi matematis siswa yang diajar dengan menggunakan model pembelajaran kooperatif tipe TSTS..Kata Kunci : eksperimen semu, Think Talk Write, Two Stay Two Stray ABSTRACTThis research aims to determine whether the mathematical communication skills of students who are taught using cooperative learning model TTW type better than the mathematical communication skills of students who were taught by using cooperative learning model TSTS type in SMP Negeri 22 Medan.  The sample in this study Is a student of class VIII-4 and class VIII-2 with many of each students there is a class which researched 40 people. Class VIII-4 was given a TTW learning model and class VIII-2 was given a TSTS learning model. Instrument in this research is a matter of pre-test and post-test that same shape. This test is essay test that the number of 8 questions, before the test of communication ability is given to the sample test first validated by the validator. This type of research is a pseudo experiment. Data analysis technique used is normality test, homogeneity test and hypothesis test. The pretest and posttest results in Grade VIII-4 sequentially are 54.60 and 77.89. The results of pretest and posttest in class VIII-2 sequentially are 53.67 and 71.32. The pretest result is tested by two parties and the result is that the initial ability of the two classes is the same. The result of class completeness given by model of TTW learning is complete while class which given by model of TSTS learning is not complete, it is shown from percentage of completeness of class given TTW equal to 85% whereas percentage of completeness of class given TSTS only equal to 55%. In hypothesis test using t test by using result and postest in both classes obtained 2,438 and   =1,667. Because , so  rejected and accepted so that obtained by conclusion that mathematical communication ability of student who taught by using cooperative learning model of TTW type better than mathematical communication ability of student taught by using cooperative learning model TSTS type in SMP Negeri 22 Medan.Keywords : Quasi Experiments, Think Talk Write, Two Stay Two Stray 


2018 ◽  
Vol 1 (3) ◽  
pp. 312 ◽  
Author(s):  
Rubaitun Rubaitun

This study aims to determine whether the improvement of students' mathematical problem solving skills that get the learning of Model-Eliciting Activities is better than students who get regular learning. Method in this research is experiment and research design pretest and postest in experiment and control class. The population in this study were all students of MTs Kota Cimahi. School samples were taken at random, and obtained by MTs Negeri Kota Cimahi. Then the sample is selected two class VIII at random class. The experimental class uses Model-Eliciting Activities, while the control class uses ordinary learning. The hypothesis in this research is the improvement of student solving abilities of MTs students in Cimahi whose learning using Model-Eliciting Activities is better than using ordinary learning. Research data obtained through the instrument of posttest mathematical problem solving ability. The posttest data is processed by normality test, homogeneity test, and two average difference test using SPSS (Statistical Product and Service Solution) software version 16.0 for Windows. The results showed that the improvement of problem solving ability of MTs students in Cimahi whose learning using Model-Eliciting Activities was better than those using ordinary learning.


2018 ◽  
Vol 1 (1) ◽  
pp. 1-24
Author(s):  
Hafsari Hafsari Hafsari

This study aims to determine the method of adult Al-Qur'an education (Dirosa) on the ability to read the Koran. This research is descriptive quantitative research with the ex-post facto design. Determination of the sample is 50% of the population entitled 90, namely 45 research samples. The research data use questionnaire and test instruments that have been tested for validity and reliability. Before carrying out data analysis, the data were tested first, namely normality test and homogeneity test. Data analysis The results of the study used descriptive statistical analysis and hypothesis analysis. The results showed that: (1) the method of adult Al-Quran education (Dirosa) as a whole respondents who answered always (SL) by 65%, who answered frequently (SR) by 30%, who answered sometimes (KD) for 5%, who answer rarely (JR) and never (TP) by 0%; (2) Ability to read al-Qur'an respondents with excellent predicate of 43 or 96%, good predicate of 2 or 4%, predicate sufficient, predicate less and predicate failed at 0 or 0%; (3) Based on the results of a simple linear regression analysis to determine the effect of adult Al-Qur'an education methods (variable X) on the ability to read the Qur'an (Variable Y) with the independent variable (method Dirosa) to the honest variable ( Qur'anic reading ability is 67.2%, while other variable costs. Significance value is 0,000 <0,05 so H0 is rejected and H1 is accepted, which means there is a significant (significant) influence of the Dirosa (X) method variable on the ability to read the Qur'an (Y). The interpretation of the r-value of 0.820 shows very strong


2020 ◽  
Vol 3 (1) ◽  
pp. 30-34
Author(s):  
Suci Nooryanti ◽  
Sri Utaminingsih ◽  
Henry Suryo Bintoro

The purposive of this study are (1) the average mathematical communication abilities of students who have learned by applying the ethnomatemics-based Realistic Mathematics Education approach, (2) the mastery of learning mathematical communication abilities of students who are taught with the Mathematics-Based Realistic Mathematics approach. This type of research is quantitative with true experimental design research design using the form of Posttest Only Control. The sample uses a simple random sampling technique and is carried out in class V SD 5 Jepang as an experimental class and class V SD 1 Gulang as a control class. Data collection techniques are tests of students' mathematical communication abilities. Data analysis techniques in this study include normality test, homogeneity test, average difference test and learning completeness test. The results showed that (1) the average mathematical communication ability of the experimental class students was higher than the average mathematical communication ability of control class students with expository learning; (2) students' mathematical communication abilities with ethnomatemicsbased Realistic Mathematics Education approach achieve mastery learning.


Author(s):  
Puri Nur Aisyah ◽  
Anik Yuliani ◽  
Euis Eti Rohaeti

This study aims to describe the ability of communication and problem solving of mathematical students in the material quadrilateral and triangle in class VII in one district of MTs Bandung. This type of research is qualitative research with phenomenology model which aims to interpret communication ability and ability to solve the mathematical problem of students. The subjects of this study were 24 students for communication skills and 25 students for math problem-solving skills. The result of data analysis shows that the mathematical communication ability of grade VII students in one MTs in Kabupaten Bandung is still relatively low with the highest percentage being in the low communication ability qualification which is 37.5%, while for students who have ability is get percentage equal to 29,2% and for students with high communication skills get a percentage of 33.3%, while for problem-solving skills in class VII is quite good with the highest percentage in qualification students with high problem-solving ability with a percentage of 44%, while for qualified students who ability is getting percentage by 40%, and for low qualifications only got a percentage of 16%.. Keywords: mathematical communication ability, mathematical problem-solving ability


Author(s):  
Desrio Windoro

<p><em>Futsal is one of the most popular extracurricular by students at SDIT IQRA1 of Bengkulu City. This study aims to determine the contribution of eyes and feet coordination towards basic passing skills on futsal athletes at SDIT IQRA 1 of Bengkulu City. The method used in this study is quantitative correlation method. Population in this study is all students of sport futsal extracurricular while the sample is 20 students. The instruments in this study are test of Soccer Wall Volley Test from Barry L. Johnson and to  measure the passing skill by using passing practice test. Prerequisite data analysis used is normality test with Lilliefors, homogeneity test and contribution test. The data analysis used is Product Moment Correlation analysis with 5% significance level. Based on the results of the study, it is found that (1) there is a significant relationship between coordination of eyes and feet (X) to the accuracy of the passing indicated by r count = 0.90977 &gt; r <sub>(0.05) (20</sub>) = 0.444. (2) There is a strong positive contribution of 82.768% between eyes and feet coordination (X) towards passing skill (Y) on futsal athletes at SDIT IQRA 1 of Bengkulu City.</em></p>


2018 ◽  
Vol 8 (3) ◽  
pp. 231-242 ◽  
Author(s):  
Meiva Marthaulina Lestari Siahaan ◽  
E. Elvis Napitupulu

The purpose of this research was to know there was any difference in student’s mathematical communication ability in cooperative learning Think TalkWrite (TTW) type and Numbered Head Together (NHT) type. The population was all students at SMP Negeri 1 Lubuk Pakam. The sample was two classes which each consist of 36 students, VII A as experimental class I which taught by TTW and VII B as experimental class II which taught by NHT. The sample was taken by cluster random sampling. Collecting data technique of this research was mathematical comunication ability essay test that was given in the end of learning either in experimental class I or experimental class II. From the data analysis of each of experimental class were obtained that the average of posttest score in TTW classroom was higher than in NHT classroom. It was also obtained that score of mathematical communication indicators in TTW classroom was higher than in NHT classroom. From the data analysis of posttest score by using t-test with significance level α = 0.05, it was obtained that tcount = 4.687 and ttable = 1.667. It means that tcount > ttable then H0 was rejected and Ha was accepted. So, it can be concluded that there was difference of student’s mathematical communication ability who taught by cooperative learning model type TTW with NHT at SMP Negeri 1 Lubuk Pakam.


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