Using the Cranmer Abacus for the Blind [Text (large print)]


Accession Number: 2006.38.2

Summary/Description: "This text is an instruction manual intended to teach you just how to go about using the Cranmer Abacus [designed for blind users] for addition, subtraction, multiplication, division, the extraction of roots, treatment of fractions, and decimals" --page 2. Includes practice exercises. Printed in 14 point type. APH catalog no. 4-27110. Paperbound in light blue cover with gray cloth tape along binding edge.

Author: Gissoni, Fred L.

Collection: APH Collection

History/Provenance: Book was obtained from APH by the Callahan Museum for hands-on use in a museum math exhibit.

Credit Line: APH Collection, 2006.38

Publisher: American Printing House for the Blind

Publisher Place: Louisville, KY

Publish Date: [1964]

Subjects: Abacus Instructional materials Mathematics

Physical Description: 38 p. ; 13 x 10 in.