The "layer-cake" curriculum of yearlong science courses and the "good science" approach are outdated. A new scope sequence is warranted, in which all sciences are taught every year K-12 and instruction proceeds systematically from concrete through empirical to theoretical. (SK)

Discussion of the educational effectiveness of textbooks focuses on a model of a virtual textbook that relies on hypermedia. Highlights include changing roles of teachers, students, and content; systemwide features of the virtual textbook, including interface and object-oriented design; classroom environment; sequencing; and a prototype. (Contains…

The implicit assumption behind personal writing assignments given at the beginning of a writing course is that personal essays eliminate the writing apprehension of having nothing to say. However, college freshmen find it very difficult to write about themselves and their own opinions because this writing involves abstract mental processes and…