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All Journal Fraktal: Jurnal Matematika dan Pendidikan Matematika
Ofirenty E Nubatonis
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Mathematics

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Penerapan Model Kooperatif Tipe TS-TS Melalui Whatsapp untuk Meningkatkan Hasil Belajar pada Mata Kuliah Struktur Aljabar Ofirenty E Nubatonis
Fraktal : Jurnal Matematika dan Pendidikan Matematika Vol 1 No 1 (2020): November 2020
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (781.269 KB) | DOI: 10.35508/fractal.v1i1.3109

Abstract

This study aims to describe the using cooperative learning TS-TS model on student learning outcomes in the Algebra Structure course. This research is an experimental research using a control class and an experimental class with a pretest posttest control group design. Sampling technique using strata sampling. The number of students in the experimental class was 27 people and the number of students in the control class was 28 people. The data analysis used descriptive N-Gain statistics, normality test, homogeneity test and hypothesis testing with independent t-test. The research data showed that the average post-test score in the control class was 74.47, which was higher than the average learning outcome for the control class, which was 63.46. This shows that the TS-TS type cooperative model is better than the conventional model.
Model Persamaan Diferensial Orde Satu Untuk Masalah Kinematika Garis Lurus Ofirenty E Nubatonis
Fraktal : Jurnal Matematika dan Pendidikan Matematika Vol 2 No 1 (2021): Mei 2021
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (614.458 KB) | DOI: 10.35508/fractal.v2i1.4039

Abstract

In the history of mathematical modeling, differential equations emerged as a tool to solve various problems in human life, including the development of theories in mathematics. In this research, differential equation models will be constructed for straight line kinematics problems. The method used is the literature review method. The differential equation models obtained are (1) The differential equation with the initial condition is a differential equation model to express the problem of changing the position of the object at time t. The integration of this model will produce an equation for the position of an object, (2) the equation with the initial conditionwhich states the change in velocity at any time t. The integration of this model will produce an equation for the velocity of an object moving in a straight path, (3) The equation to express Newton's Second Law and with the initial condition then the integration will produce a velocity equation that takes into account the mass of the object and the resultant force is given, (4) the equation with the initial condition so that the integration will produce a velocity equation for free falling objects and (5) a first order linear ordinary differential equation and Bernoulli's differential equation to express the change in the velocity of an object in free fall which is affected by air friction.
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