It's an Art lesson,Mr Art is teaching his students drawing,t

It's an Art lesson,Mr Art is teaching his students drawing,the students are learning how to draw pictures
Mr Art :today we're going to draw a cake and a cat,OK? look at the blackboard,please.this is a cake,what shape is it Tony?
Tony:It's a circle.
请判断这句话正误：Mr Art is teaching the students how to draw shapes