People learn by doing and thinking about what they do.
Full abstraction, then, can be reached through appropriate narrative and expository writings. Recognizing this, modern science programs now offer activities that integrate math, reading and writing skills with technologies such as videodiscs and other electronic learning materials. In the past few years there has been an outpouring of new science curricula. Both FOSS and the BSS are marketed by the Encyclopaedia Britannica Educational Corp. of Chicago, Ill., and both span K-6 grades. A middle school component is under preparation.