Comment Thread

says

Thank you, Chad for the answer to my question about the writing machine! I must say that to get to this site, to this comment/question board, has got to be the hardest path I have ever found in any educational process! Please note there is not a 'box to check' where it asks the visitor to '...more »

says

A few years ago on this site I used a wonderful interactive page with my students and I can't find it now. Is there still a page where they can interactively operate the polygraph? Thank you so much for your help!more »