FryingMan

Summary: walking in large outdoor park in daylight, avoiding back and forth sprinklers, thinking about math results, go to building, can't find entrance to classrooms, finally enter and teacher quizzes me on which class I should enter, "lines of Lucien"

I'm outdoors in a large open park-like area in daylight. I'm with someone who later turns out to be my son S2. At first I'm thinking about meeting up with a group. Then I'm thinking about math: I'm waiting for results of a test? I'm finishing 8th grade? There are lawn sprinklers (the back and forth kind not the circular ones) operating on the paths, I try to time my passing so that the sprinklers are moving away from me as I pass through them to minimize how much water splashes on me, but I always seem to get caught in the return movement and get a bit wet.

I'm with S2 and we approach a building, looking rather old and decrepit, he makes a comment about it I forgot, we're walking along it and trying to find the entrance. I can hear faint sounds of people inside so I know we should be able to get in. I can't see any windows but S2 is able to dig his fingers into the walls and find the edges of panels/shutters that are covering the windows and swings several of them open, we try to look through most the glass is dark / opaque. At some point we look back the way we came and see the entrance.

We go inside and it is like a classroom, with rows of students at desks quietly working, S2 says something like this must be the lunch period. There is a turnstyle we need to enter?

A male teacher approaches and starts asking me about things that I know in order to determine which class I need to enter. He asks if I've studied the equations of intersecting planes and "the Lines of Lucien." I think I have but I don't want to say "yes" and be put in to the wrong class. I try to indicate what I've learned, I think of parabolas and conic sections, I bend the index fingers of my left and right hands and bring them together in order to indicate this, and say I've studied parabolas, hyperboles, and conic sections.

I think for a moment (a pearl of lucidity?) that I've studied math far beyond these levels.