pair and small group work is infrequently welcomed in english as a foreign language (efl) classes under the assumption that students tend to use their first language (l1), which is considered detrimental to learning the new language. from sociocultural perspective, however, students’ first language is claimed to play the role of an important psychological tool and can facilitate the learning pr...

We consider interactive learning and covering problems, in a setting where actions may incur different costs, depending on the response to the action. We propose a natural greedy algorithm for responsedependent costs. We bound the approximation factor of this greedy algorithm in active learning settings as well as in the general setting. We show that a different property of the cost function co...

the quality of learning is one of the basic elements in every society to reach achievements. this subject has more importance on e-learning. accordingly, the present study explains the affecting factors on e-learning programs’ effectiveness. regarding the aims, the present research is descriptive and regarding the application is practical. data collection method is research made questioner. in ...

The importance of good vision to reading and learning has been the subject of considerable study. Numerous clinical and research studies have shown that good visual abilities are beneficial to learning to read and to read with understanding. Children with normal eyesight (20/20) can have visual problems which affect how their eyes focus, team together, or move along a line of print when reading...