A noun is a word that names a person, a place, a thing, or an idea. An article is a word that is used along with a noun. There are three articles in the English language: a, an, the.
The word a is an indefinite article used with nouns that start with a consonant. 
a dog, a cat, a house, a car, a book, a mouse, a flower, a lake, a mountain, a road, a country, a banker
The word an is an indefinite article used with nouns that start with a vowel (a, e, i, o, u)
an elephant, an orchestra, an orange, an object, an ocean, an arena, an electrician, an organization
The word the is a definite article. It is used with any noun when you want to specify that exact noun.
the dog, the cat, the elephant, the house, the car, the object, the organization, the lake, the ocean, the book
Use the articles a, an, the in front of a noun when writing a sentence. I read the book. I caught a fish.
It’s your turn. Find the two articles in this sentence. Bob caught a fish at the lake. Did you figure it out? Good for you!
