Ups and downs
Series: Britannica mathematics in context; Britannica mathematics in context
Publisher: Encyclopaedia Britannica Educational Corp.
Published: 2003
Place of publication: Chicago, Ill
Language: eng
Format: [braille]
Subjects: Mathematics; Study and teaching (Middle school)
Notes: Grades 7-8.

Braille. Alma, Mich. : Mid Michigan Braille. 2 v. (142 p.) ; tactile graphics.