Rote Skills refers to learning by repetition. If we hear or see something, we'll likely repeat it over and over again either aloud or in our heads as a way to remember it. NTs do this too when it comes to things like phone numbers where they want to quickly ingrain it, though Aspies tend to favour Rote learning over critical thinking. This means we're more likely to retain the information we've learned, but are less likely to fully understand it in a context where we could use it outside of what it was repeated from.

This is probably why a lot of Aspies show no signs of learning problems in the earlier years of school, where most learning is Rote learning. Such as multiplication tables, alphabet, etc. But when it comes to using that information in another context later in life, it can be more difficult.