I'm in the same boat as you. My son just turned two a couple of weeks ago and I'm trying to teach him about the days of the week.

I'm using a weekly calendar to explain what we're doing on different days of the week.

Each morning, I have him mark the current day. We talk about what we're doing today, what we did yesterday, what we're doing tomorrow and the rest of the week.

After a few months of doing it, he can point to a day of the week and mention the activity we'll be doing.