<p>My son had two “difficult TAs”. One was from an Asian country with poor English skills who didn’t know what he was doing. My son contacted the lab director and they made some large adjustments. It was around the middle of the semester and they made grade adjustments upwards to compensate for the problems. The problems were mainly that the lab directions were unclear and that the TA never graded anything.</p>
<p>I don’t recall what the problems were with the other TA but he took it up the management chain and got it taken care of. I think that this is just the way it is with TAs.</p>