| http://www.w3.org/ns/prov#value | - Referring to the drawings, and more particularly FIGS. 1 through 4, there is illustrated a teaching device 10 formed in accordance with a first embodiment of this invention and having four basic elements, a housing 12, a tape playback apparatus 14, tape cartridge or cassette 16 enclosing a prerecorded endless tape 17 therein, and a book 18.
|
