TY  - BOOK
AU  - Abelson,Harold
AU  - DiSessa,Andrea A.
TI  - Turtle geometry: the computer as a medium for exploring mathematics
SN  - 0262010631
PY  - 1980///
CY  - Cambridge, Mass.
PB  - MIT Press
KW  - Geometry
KW  - Study and teaching
KW  - Computer-assisted instruction
N1  - Includes index
ER  -