Learner decides whether a noun is countable before choosing any article, and can state the two tests that decide it.
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Six phrases. Choose the correct one. You find out at once whether you were right.
He gave me ______ about the exam.
English asks one question before it asks about articles. Ask it in the wrong order and the question has no answer.
English has two kinds of noun.
Most nouns can be counted. One chair. Three chairs. Ten problems.
A few cannot. You cannot say one advice. You cannot say three advices. These are called uncountable nouns.
An uncountable noun never takes a. It never takes -s.
In most other languages, these same nouns can be counted. That is why the mistake is so common.
The key fits one lock and bends against the other.

The things on the left can be counted one by one. The thing on the right can only be measured.
Sort twenty nouns into countable and uncountable. Each pair names the same things in the real world.
Sort each item into the correct category
Eight are wrong. Two are already correct and must be left alone.
He gave me an advice about the exam. → he gave me
I wanted a traditional attire for my wedding. → I wanted
She gave me two pieces of advice. → she gave me
The lab has many equipments. → the lab has
The temple had a whimsical architecture. → the temple had
We packed two items of equipment. → we packed
I need informations about the course. → I need
The country needs better infrastructures. → the country needs better
They bought a new furnitures for the office. → they bought
There was a bad weather all week. → there was
One uncountable noun, one countable noun. Short sentences are fine.
Use one of these uncountable nouns in your first sentence:
advice · information · equipment · attire · architecture · infrastructure · furniture · luggage · weather · money
In your second sentence, use a noun you can count. Put a number or a in front of it.
Keep both sentences short.
Two sentences, one per line.
Write it exactly as it appears in your sentence.