What are some ways to introduce countable and uncountable nouns when teaching? Can anyone recommend an activity?
Create a supermarket and they have to make the sign "10 items or less" for non-countable or "10 items or fewer" for countable.
They create a store that sells something. If they sell electricity, love, or water (those being noncountable) their sign says 10 items or less since less is used with noncountable nouns.
If they sell pencils, fidget-spinners, or iPads, their sign says 10 items or fewer since fewer is used with countable nouns.
It's fun to hear them come the next day saying the grocery store sign is incorrect because it says less! It sticks with them!