Logo is more than the turtle -- Brian Harvey wrote a whole series of textbooks for Logo that really stressed the functional aspect of the language http://peopl

Logo is more than the turtle -- Brian Harvey wrote a whole series of textbooks for Logo that really stressed the functional aspect of the language http://people.eecs.berkeley.edu/~bh/v1-toc2.html http://people.eecs.berkeley.edu/~bh/v1-toc2.html