I just got my first job out of college as an elementary school teacher!
Remember Elementary School?  Who was your first grade teacher?
I don't remember my first grade teacher at all, actually. I don't remember what I learned in first grade either.
Wow!  Everybody remembers their first grade teacher?  How old were you?  Actual age of attendance varies by country.
I think I was about 6 or 7 at the time. It was 2001.
Did you go to a K-6 school.  One with 6 grades?