focus on science concepts
Subtitle: science concept working papers
By: by David C. Cox and the Oregon Cadre for Assistance to Teachers of Science (OCATS)
Contributors: Oregon. Division of Curriculum and School Improvement.; Oregon Cadre for Assistance to Teachers of Science.
Series: Science concept working paper -- nos. 1-20.
Publisher: Division of Curriculum & School Improvement, Oregon Dept. of Education
Published: 1989
Place of publication: Salem, Or
Language: eng
Subjects: Science -- Study and teaching (Elementary) -- Oregon.; Science -- Study and teaching (Secondary) -- Oregon.