One of the harder things for students to learn is throwing a lid off the hump. For you non potter’s out there, this means, throwing a small lid, cup, or bowl off a larger piece of clay. This works very well because you can thrown many repetitive pieces without having to wedge each piece individually. Below I am teaching, “Big Girl Pottery Class” how to throw a lid with a flange.
The below photo I am using back of my fingernail to create a straight line to place the wire tool. The cut comes out even if you keep your eye on one side of the line.