HORN, Mary
Children and plastics, Stages 1 and 2 and background : a unit for teachers / SC 5/13 ; [chief author, Mary Horn] - London : Published for the Schools Council by Macdonald Educational, 1974 - [6], 108 p. : ill. ; 22 cm
Includes index
0356043525
Science--Study and teaching (Elementary)
Plastics--Study and teaching (Elementary)
Children and plastics, Stages 1 and 2 and background : a unit for teachers / SC 5/13 ; [chief author, Mary Horn] - London : Published for the Schools Council by Macdonald Educational, 1974 - [6], 108 p. : ill. ; 22 cm
Includes index
0356043525
Science--Study and teaching (Elementary)
Plastics--Study and teaching (Elementary)