i taught the class every day of the week, alternating between introductory laboratory activities and the car project: e.g. after two days of simple circuit construction, we would advance to building a circuit from scratch for the project.

How would the previous sentence be correctly capitalized?
I taught the class every day of the week, alternating between introductory laboratory activities and the car project: e.g. after two days of simple circuit construction, we would advance to building a circuit from scratch for the project.