With the coming of the information age, computer-based teaching model has had an important impact on English teaching. Since 2004, the trial instruction on Network-assisted Language Teaching (NALT) Model integrating the English instruction and computer technology has been launched at some universities in China, including China university of…

This study examined how upper elementary biology students grasped the concepts of mean and deviation from mean and the implications of these concepts. Pretesting and posttesting of students who did and did not have computer assisted training in the concepts indicated that though most students failed in more difficult tasks, experimental students…

This paper examines ways in which coherent reasoning about key concepts such as variability, sampling, data, and distribution can be developed as part of statistics education. Instructional activities that could support such reasoning were developed through design research conducted with students in grades 7 and 8. Results are reported from a…