Prof. Abachi is a nice guy but his teaching method is quite sketchy. The first two weeks of class he came in from 5-15 minutes late and one day he didn't show up and someone had to tell us he cancelled class. But he has been on time from then on. His lectures are ok but he tends to mess up on equations very VERY frequently. And he will also mess up on example problems and sometimes when he tells the history of something he will mess up. One of his mess ups were when he told us that Washington saw that there were two types of charges, positive and negative. But the real person was Franklin, a different guy on a different dollar bill. His exams are ok not the best not the worse but his practice exams range because sometimes it has material we haven't covered that won't be on the test and sometimes it will me missing something. Homework and lab are ok just that he tends to get behind in lab so in lab we are clueless. That's all but he seems to try his best and he tries to be funny when he really isn't.