This is quite frequent in countries of the ex-soviet block. Most of the language classes we had were about rote memorization and recall of words without context.
I didn't have to repeat any words for my kids - they'd figure out words like Gaurus and spoiler, sometimes even faster than their parents.
Kids pick up language differently though. Look at feral kids - the ones who have never picked up a language as a child often don't pick any languages up even later in life.