3 ms·I noticed the link on the link to Paul's post was not working.by tmaly 2y agoI noticed the link on the link to Paul's post was not working.akho 2y agoLockhart’s Lament is pretty well known in maths education circles. Calling it an “online article” is weird.tmaly 2y agoI have emailed him a few times after I read the book. He was pretty responsive.