7 common misconceptions about language learning

Hello,

I’d like to know the meaning of two words, plastic and drills (but not the individual meaning) within two phrases:

1st: Recents brain research has demonstrated that our brains remain plastic well into old age. so what does plastic mean in the whole context of this phrase?

2nd: Drills and exercises are annoying to most people, I’ve found in the dictionary that drills means as well exercises but what is the difference between drills and exercises in this phrase?

Thanks in advance.

Best regards.

plastic = flexible (like soft plastic); able to adapt and learn new things.

drills = exercises, but very short and aimed at testing a single aspect of your comprehension (so the questions are very similar)

plastic=> elastic
drills=> repetition