507.12 [sp-isis VER.1.1,91] Pos D Postiethwaite, Keith. Differentiated Science teaching : reponding to individual differences and to special educational needs.-- Buckingham : Open University, 1993. 122 p. : il. ; 25 cm. -- (Developing Science and Techonology Education) ´´Bibliogrphy´´ : p. [115] - 118. ISBN:0-335-15707-6 1.CIENCIA - ESTUDIO Y ENSEÑANZA 2.ENSEÑANZA INVESTIGATIVA I.t.