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Model Pembelajaran Kooperatif Tipe Student Team Achievement Divisions (STAD) terhadap Kemampuan Representasi Matematis Siswa Kelas VIII SMPN 2 Tambusai Utara Arcat; Amri Subchan
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 2 No. 1 (2019): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1158.385 KB) | DOI: 10.30606/absis.v2i1.204

Abstract

This study aims to look at the effect of the STAD type cooperative learning model on the mathematical representation ability of class VIII students of SMPN 2 Tambusai Utara. The research method used is quasi-experiment involving two classes, namely as a control class and an experimental class. The research was conducted at SMP Negeri 2 Tambusai Utara Academic Year 2018/2019 which involved classes VIII a and VIII b. The students' mathematical representation ability test instrument used 3 questions in the form of descriptions. Data analysis was performed using SPSS with Liliefors Test as data normality test, Fisher Test as Homogeneity test data and t-test for average similarity test. The results of the study revealed that there was an influence of the STAD type cooperative learning model on the mathematical representation ability of students, meaning that the value of the representation of the experimental class students was better than the value of the control class. The average obtained by the experimental class was 77.27, while for the average value of the control class was 67.74.
Pemodelan Regresi Hurdle Negative Binomial Tersensor Pada Kasus Penyakit Difteri Lusi Eka Afri; Arcat
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 2 No. 1 (2019): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (988.206 KB) | DOI: 10.30606/absis.v2i1.220

Abstract

The censored Hurdle Negative Binomial regression model is a method which can be used for response variables of count data with excess zero values. This model is an alternative solution to overcome over dispersion in Poisson regression due to many zero-value observations. This model uses a two-part approach, the first part is modeling the response variable which a zero value and the second part is modeling the response variable with a non-negative integer value. The type of censored used in this research is the right censored. This research will applied on the theory and empirical studies on the censored Hurdle Negative Binomial regression model. the results of the theory estimation of the parameters of the censored Hurdle Negative Binomial regression model using the maximum likelihood method are obtained implicit nonlinear equations, so the estimation of the model parameters using Newton Rapshon method. Censored Hurdle Negative Binomial regression model of diphtheria cases in Riau Province with the variables of basic immunization coverage, coverage of toddler health services and coverage of health facilities affect the number of diphtheria cases.
Pengaruh Strategi Pembelajaran Relating, Experiencing, Applying, Cooperating, and Transferring (REACT) Terhadap Kemampuan Komunikasi Matematis Siswa Kelas VII di MTs Ash-Sohibiyah Bangun Purba Lily Hardiyah Hafisani; Annajmi; Arcat
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 2 No. 2 (2020): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v2i2.338

Abstract

ABSTRAK This study aims to determine whether or not there is an effect of the Relating, Experiencing, Applying, Cooperating, and Transferring (REACT) learning strategy on the mathematical communication skills of grade VII students at MTs Ash-Shohibiyah Bangun Purba. This type of research is a Quasi Experiment study with the Posttest Only Control Group Design design. This study's population were students of class VII MTs Ash-Shohibiyah Bangun Purba with a sample of class VII.1 and class VII.2. Samples were obtained using random sampling techniques. The experimental class uses the REACT strategy, while the control class uses conventional learning. This research instrument is a question of a description of mathematical communication skills. Posttest data on mathematical communication skills obtained were analyzed data to test the hypothesis. The normality test results showed that data were normally distributed, and the homogeneity test results showed that the data had variants that were not homogeneous. Hypothesis testing used the t 'test because the data were normally distributed and not homogeneous. The results of the calculation concluded that there was an effect of the learning strategy of Relating, Experiencing, Applying, Cooperating, and Transferring (REACT) on the mathematical communication skills of grade VII students at MTs Ash-Shohibiyah Bangun Purba.
Pengembangan Lembar Aktivitas Siswa (LAS) berbasis Penemuan Terbimbing pada Materi Lingkaran untuk Kelas VIII SMP Yulia Ulfa Harahap; Ratri Isharyadi; Arcat
Jurnal Pendidik Indonesia Vol. 3 No. 1 (2022): Jurnal Pendidik Indonesia
Publisher : Karoteh Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61291/jpi.v3i1.14

Abstract

This study aims to produce a valid guided discovery-based Student Activity Sheet (LAS) on circle material. Research and development (Research and Development) is the type of research used. The development procedure used in this research follows the 4-D development model, which is modified into 3-D, consisting of defining, designing and developing. The instrument used in this study was a validation questionnaire sheet. The validation questionnaire sheet consists of didactic, content, language, and display aspects. Data analysis was carried out by calculating the average of each aspect at this validation stage. Based on the validity test of the guided discovery-based LAS, which three validators have carried out with several revisions and improvements, the average score of the guided discovery-based LAS validation results is 3.36, with a very good category. So it can be concluded that LAS based on guided discovery is valid.