Eighty-eight seventh grade students were randomly assigned to mastery or nonmastery approaches to learning four hierarchical chapters about sailing. The price of increased achievement benefits of group-based mastery learning seems to be increased time costs of (1) extra remedial time and (2) "wasted time" of faster learners. (Author/PN)

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…