28) note that the major physics text in use in the late 1950s was Modern Physics ( Holt). Introduced in 1958, PSSC gained in acceptance until the early 1970s, at which time the peak usage was about 35 percent of the students enrolled in physics. Since the early 1970s, the use of PSSC has been declining, as reflected in the NSF statistical survey results. Project Physics, introduced in 1969, accounted for approximately 22 percent of the students studying physics in 1975. Howeveranbsp;...
Title | : | What are the Needs in Precollege Science, Mathematics, and Social Science Education? |
Author | : | |
Publisher | : | - 1980 |
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