Experiences with sets and numbers.
Series: Curriculum series / Ontario Institute for Studies in Education : -- no.14; Curriculum series (Ontario Institute for Studies in Education) -- no.14.
Publisher: OISE
Published: 1972
Place of publication: [Toronto
Language: eng
Subjects: Mathematics -- Study and teaching (Elementary); Number concept -- Study and teaching (Elementary); Set theory -- Study and teaching.
Notes: For grades 4-6.

CR