One and more
By: by Hubert J. Freestrom, Bernard R. Osterberger [and] F. Alvin Blackman.
Contributors: Osterberger, Bernard R., joint author.; Blackman, F. Alvin, joint author.
Series: The Process/concept science series
Publisher: Benefic Press
Published: 1971
Place of publication: Westchester, Ill
Language: eng
Number of pages: 64
Subjects: Set theory -- Juvenile literature.; Set theory.
Description: Pictures of animals, machines, space flight, and rocks introduce the concepts of sets, elements, sequence, and simple addition.