I was the Graduate Student Instructor (GSI) for Econometric Analysis (Econ 141), undergraduate econometrics with linear algebra, for three semesters at UC Berkeley.
I have uploaded edited versions of my most recent section notes (from Spring 2016). I made two major changes to those notes - I altered several of the exercises so that they use public data, and I included some additional material from previous semesters (most notably, additional information on asymptotic properties of estimators).
Logistics:
Section Notes