Elementary school science 2 things change. Teacher's manual

Dettagli Bibliografici
Autore principale:	Curriculum Development Center for Science and Mathematics, Science Education Center, University of the Philippines
Natura:	Libro
Lingua:	English
Pubblicazione:	Manila Department of Education and Cutlture,Republic of the Philippines c1977a.
Soggetti:	Science > Problems, questions, exercises. Science > Study and teaching.