I was told that the Projective Plane was also known as the Reference Plane in Projective geometry, but when I told my professor this, he freaked and told me I was completely wrong. He said that the Projective plane is the lines that go through the origin that intersect the Reference plane at a point. He said "a 'point' in the Projective plane is a line", and "even though they look like lines, they are called 'points'"...
This is word for word what he said, and he is the one grading my presentation. So I am going to believe what he says, but I still don't understand this idea and the fact the Projective plane is NOT the Reference plane in Projective geometry.
Thanks in advance!