Elementary school science 2 things change. Teacher's manual

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Curriculum Development Center for Science and Mathematics, Science Education Center, University of the Philippines
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	Manila Department of Education and Cutlture,Republic of the Philippines c1977a.
Ábhair:	Science > Problems, questions, exercises. Science > Study and teaching.