It probably depends on why you're learning this. If I understand the concept correctly, the idea is to interleaving complementary skills. i.e. you stay within the same broad skill/activity domain.
So if learning this to prepare for a quiz show, I'd probably interleave it with specific trivia-esque facts about each capital city's culture, history, etc. That way you both learn the names of the capitals, and you attach varied bits of context to each name.
If I needed to know them because I'm moving to somewhere in Europe and I want to have a "lay of the land," I might interleave other useful tips and tricks I would need to know. Any quirks in how they drive over there, how to order food in whatever languages I need to know, the different new social customs I need to be aware of, how to translate in my head between English and metric measurements perhaps, etc ...
So if learning this to prepare for a quiz show, I'd probably interleave it with specific trivia-esque facts about each capital city's culture, history, etc. That way you both learn the names of the capitals, and you attach varied bits of context to each name.
If I needed to know them because I'm moving to somewhere in Europe and I want to have a "lay of the land," I might interleave other useful tips and tricks I would need to know. Any quirks in how they drive over there, how to order food in whatever languages I need to know, the different new social customs I need to be aware of, how to translate in my head between English and metric measurements perhaps, etc ...