In this study, we meta-analyzed empirical research of the effectiveness of intelligent tutoring systems (ITS) on K-12 students' mathematical learning. A total of 26 reports containing 34 independent samples met study inclusion criteria. The reports appeared between 1997 and 2010. The majority of included studies compared the effectiveness of ITS…

Students (n = 797) from 36 4th-grade classrooms were taught the control of variables strategy for designing experiments. In the instruct condition, classes were taught in an interactive lecture format. In the manipulate condition, students worked in groups to design and run experiments to determine the effects of four variables. In the both…

Students were randomly assigned to study an instructional program by constructed responding or by reading. Level of prior attainment was ascertained by pretest scores. Interaction was found between prior achievement and instructional support. Constructed responding was especially beneficial for students with low pretest scores. (BJG)

In order to examine the influence of interactive media on children's story memory, first-grade children experienced a computer-based story in one of four presentation modes, two of which were interactive. In the interaction groups, there was no relation between the amount of interaction with the story and subsequent memory. (Author)

An adult read to 12 children from a regular paper book. Twenty-four children explored a similar electronic book. For half of this group, the electronic book was with and for half without restrictions on games. Regular book format was more supportive of learning story content and phrasing; both formats supported internalization of features of…