Elementary school science 2 things change. Teacher's manual

Библиографические подробности
Главный автор:	Curriculum Development Center for Science and Mathematics, Science Education Center, University of the Philippines
Формат:	‌
Язык:	English
Опубликовано:	Manila Department of Education and Cutlture,Republic of the Philippines c1977a.
Предметы:	Science > Problems, questions, exercises. Science > Study and teaching.