Well, "right now" I'm teaching ds#1 (9 years old) that though maple syrup does indeed come from trees, it does not grow on any trees in our yard, nor does salsa mysteriously appear in the pantry. (He has no concept of "take only what you need and then add more later if you need more.
In general though ...
We are moving through the second half of ancient history and are about to land in Greece. Whereas in US History, Columbus, et. al. are about to "discover" America.
We just learned that there are 10 noun forms in Latin - and though we are only in chapter three of LfC A, I'm guessing there are 10 forms for feminine nouns, 10 for masculine and 10 for neuter. Oh, this is going to be an interesting ride.
In science, the boys learned yesterday that the Earth is approximately 75% water - they found that fascinating.
They are learning subject and predicate, and the use of the 8 parts of speech in grammar (MCT Island). I am loving that curriculum and how it explains things.
My four year old is learning to recognize musical greats like Crowded House, Oingo Boingo, and Michael Jackson, and knows that the horns are what make Oingo Boingo's music so much fun.
The older two probably know most of the words to Rosemary Clooney's Sisters. (I have a wide and eclectic taste in music and am making sure the boys know the various artists in our iTunes playlist - their favorite song right now is Dead Man's Party.)
And I figured out this week how to help make long division more conceptual for ds#1. He does well with algorithms, but also loves knowing the why things work, and we use Singapore & Miquon purposely because they are conceptual in their approach. But having never been taught math conceptually myself, sometimes I have to stretch my brain around it all. Seeing long division done with place-value discs was great. And he's slowly learning to like multiplication and division as he is slowly, and finally, memorizing his times tables.