How to promote interaction in cooperative learning tasks is discussed from a theoretical perspective in order to maximize the benefits of cooperative learning. A classroom instructional model is presented and examined...How to promote interaction in cooperative learning tasks is discussed from a theoretical perspective in order to maximize the benefits of cooperative learning. A classroom instructional model is presented and examined to illustrate how successful and effective interaction is carried out to create the optimal conditions for second language acquisition.展开更多
The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the ...The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the colored radiations of light. The innovation is here based on a more subtle and more complete process, using the trichromy, i.e., all the possibilities of the white light, which is split in three primary radiations： red^een--blue. One can, indeed, animate a pigmentary surface by the alternate projection of these three colors, and thus reveal three different images on the same support, or create a motion effect. However, in this process, the weakness of bhie, compared to green and red, might constitute an obstacle. But that will be compensated by the use of fluorescent colors, instead of ordinary colors. This process may provide very spectacular applications in the fields of lighting, architecture, design, scenography, booths, display windows, etc.. We shall propose a step-to-step approach.展开更多
文摘How to promote interaction in cooperative learning tasks is discussed from a theoretical perspective in order to maximize the benefits of cooperative learning. A classroom instructional model is presented and examined to illustrate how successful and effective interaction is carried out to create the optimal conditions for second language acquisition.
文摘The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the colored radiations of light. The innovation is here based on a more subtle and more complete process, using the trichromy, i.e., all the possibilities of the white light, which is split in three primary radiations： red^een--blue. One can, indeed, animate a pigmentary surface by the alternate projection of these three colors, and thus reveal three different images on the same support, or create a motion effect. However, in this process, the weakness of bhie, compared to green and red, might constitute an obstacle. But that will be compensated by the use of fluorescent colors, instead of ordinary colors. This process may provide very spectacular applications in the fields of lighting, architecture, design, scenography, booths, display windows, etc.. We shall propose a step-to-step approach.
