A concrete-to-abstract software ramp
Subtitle: environments for learning multiplication, division, and intensive quantity
By: prepared by James J. Kaput, Laurie Pattison-Gordon
Series: Technical report -- TR87-8; Technical report (Educational Technology Center (Cambridge, Mass.)) -- 87-8
Publisher: Educational Technology Center, Harvard Graduate School of Education
Published: 1987
Place of publication: Cambridge, MA
Language: eng
Number of pages: 46
Subjects: Software architecture; Mathematics; Computer-assisted instruction
Notes: "September 1987."

Includes bibliographical references (p. 46).