Even if it wasn’t National Skipping Day I’d recommend this clip of a mom teaching her young son how to add. She puts on three pairs of sunglasses and asks him to count the number of lenses. He counts to six, which is perfect.
So, she takes it up a notch and asks him to “skip count” this time by doing two, four, six. But he doesn’t understand. He counts to six, just like the first time . . . EXCEPT that he skips away while doing it.