Pengaruh Penggunaan Model Pembelajaran Kooperatif Tipe Make A Match terhadap Hasil Belajar

This research was aimed to find out (1) The difference between students\u27 study result that used cooperative learning model of make a match type and students\u27 study result that used conventional learning model, (2) The effect of using cooperative learning model activities of make a match type on the students\u27 learning achievement. This research used quasi experiment method. The populations of this research were the students of class VII 3 and class VII 4. Analysis data techniques that used in this research were t-test and analysis of simple linear regresion. The result showed (1) There was a difference between students\u27 study result that used cooperative learning model of make a match type and students\u27 result study that used conventional learning model, (2) There was an effect of using cooperative learning model activities of make a match type on the students\u27 learning achievement.Penelitian ini bertujuan untuk mengetahui (1) perbedaan hasil belajar siswa yang menggunakan model pembelajaran kooperatif tipe make a match dengan hasil belajar yang menggunakan model pembelajaran konvensional, (2) pengaruh aktivitas penggunaan model pembelajaran kooperatif tipe make a match terhadap hasil belajar siswa. Penelitian menggunakan metode eskperimen semu. Populasi dalam penelitian ini adalah siswa kelas VII 3 dan kelas VII 4. Teknik analisis data yang digunakan adalah uji t dan analisis regresi linier sederhana. Hasil penelitian (1) ada perbedaan hasil belajar menggunakan model pembelajaran kooperatif tipe make a match dengan hasil belajar siswa yang menggunakan model pembelajaran konvensional, (2) ada pengaruh aktivitas penggunaan model pembelajaran kooperatif tipe make a match terhadap hasil belajar siswa

Control of Integrable Hamiltonian Systems and Degenerate Bifurcations

We discuss control of low-dimensional systems which, when uncontrolled, are integrable in the Hamiltonian sense. The controller targets an exact solution of the system in a region where the uncontrolled dynamics has invariant tori. Both dissipative and conservative controllers are considered. We show that the shear flow structure of the undriven system causes a Takens-Bogdanov birfurcation to occur when control is applied. This implies extreme noise sensitivity. We then consider an example of these results using the driven nonlinear Schrodinger equation.Comment: 25 pages, 11 figures, resubmitted to Physical Review E March 2004 (originally submitted June 2003), added content and reference

Controlling extended systems with spatially filtered, time-delayed feedback

We investigate a control technique for spatially extended systems combining spatial filtering with a previously studied form of time-delay feedback. The scheme is naturally suited to real-time control of optical systems. We apply the control scheme to a model of a transversely extended semiconductor laser in which a desirable, coherent traveling wave state exists, but is a member of a nowhere stable family. Our scheme stabilizes this state, and directs the system towards it from realistic, distant and noisy initial conditions. As confirmed by numerical simulation, a linear stability analysis about the controlled state accurately predicts when the scheme is successful, and illustrates some key features of the control including the individual merit of, and interplay between, the spatial and temporal degrees of freedom in the control.Comment: 9 pages REVTeX including 7 PostScript figures. To appear in Physical Review