This morning I was in the kitchen making some tea and I could hear Parker in the living room reciting the days of the week. Well, some of them anyway....
Parker: "Monday, Tuesday, Wednesday, Wednesday, da day, Sat-UR-day!"
Mama: "Where'd you pick that up? Do you know what days of the week are?"
Mama: "What day is today?"
Parker: "Monday!" Big grin.
Mama (surprised): "It IS Monday! How did you know that? Hmm.... what day was yesterday?"
Mama: "What day is tomorrow?"
Mama: "Yeah, that's what I figured."