This research described the retrospective formation of identity and manifestation of responsibility of four African-American female leaders who served as urban school principals. Cross (1971, 1991) determined that African-Americans undergo a four step process of identity development that he coined Nigrescence. Within these four stages of identity…

Presents a logical analysis of three vector concepts (position, displacement, velocity) in terms of their constituent characteristics and shows how they can be used to structure an empirical investigation into students' prior knowledge about these characteristics. Reports results of students' (N=20) conceptions about the vector characteristics…

Collaborating closely with a 10th-grade science teacher, we designed a Web-based learning environment (Web-LE) to improve student motivation to learn science. Factors believed to enhance intrinsic motivation (challenge, control, curiosity, and fantasy) were integrated into the instructional design of the Web-based learning tool. The Web-LE was…

A great number of students, and a particularly high proportion of females, do not study mathematics beyond minimum high school requirements. Research indicates that segregation of mathematics classes may help reduce the incidence of female students dropping out of that subject. In an attempt to redress this situation, A. Y. Jackson Secondary…