New directions in teaching secondary school science /
Hurd, Paul De Hart, 1905-
New directions in teaching secondary school science / Paul DeHart Hurd. - Chicago : Rand McNally, 1969. - 239 p. ; 21 cm. - New trends in curriculum and instruction series. .
Includes indexes and bibliography : p. 209-232.
Science--Study and teaching (Secondary).
New directions in teaching secondary school science / Paul DeHart Hurd. - Chicago : Rand McNally, 1969. - 239 p. ; 21 cm. - New trends in curriculum and instruction series. .
Includes indexes and bibliography : p. 209-232.
Science--Study and teaching (Secondary).
