All nouns are either countable or uncountable.

Countable nouns are nouns that are individual things.  They can be numbered one, two, three, etc.

Example:

One bird	Two chairs
Three cars	Four trees

etc.

Countable nouns can be singular or plural:

Singular:  a chair, the chair, my chair, his chair, etc.
Plural:  chairs, the chairs, my chairs, his chairs, some chairs, many chairs, etc.

Note:
The singular form can never be used alone – it always needs an article (a, an, the) or a possessive adjective (my, your, his, etc.).

Example:

We sat under a tree.  (not under tree)

Uncountable nouns are nouns that are not individual things.  They cannot be numbered one, two, three, etc.

Some uncountable nouns:

Water, milk, oil, etc. (any liquid)
Salt, sugar, flour, etc.
Money, music, bread, grass, work, rice, etc.

Uncountable nouns do not use “a/an.”  They do not use a plural form:

Bread, the bread, my bread, some bread, much bread, etc.

Example:

I’m going to eat some bread.  (not a bread)

We can use “a piece of ~,” “a glass of ~,” “a slice of ~,” etc.:

Would you like a piece of cake / a slice of cake?
I’m thirsty – could I please have a glass of water?
The recipe calls for a cup of milk.

Other examples:

a bottle of beer
a bowl of cereal
a piece of candy
a game of chess

Exercise.  Identify the following items, using the given nouns.  Use an appropriate phrase:  “It’s a ______.” or “It’s ______.”

Example:

==> It’s a cat.

==> It’s milk.

1.	2.
3.	4.
5.	6.
7.	8.
9.	10.
11.	12.

Exercise.  Correct the following sentences by adding “a/an” if needed.  If no article is needed, write “OK.”

Example:

I found wallet. ==>  I found a wallet.
Buy milk at the store.  ==>  OK.

1.    We rented car on our vacation.
2.    I want to listen to music.
3.    Tom needs money.
4.    The dog hid under chair.
5.    Vegetarians don’t eat meat.
6.    Do you like coffee?
7.    Could I borrow pen?
8.    There was big scratch on the piano.
9.    I need coin for the vending machine.
10.    The teacher dropped piece of chalk.
11.    Jack took test in school today.
12.    Do you have salt?
13.    I want cup of tea.
14.    We have grass in our back yard.
15.    Sally eats fish.
16.    The machine needs oil.

Exercise.  Describe the pictures, using the phrase “a ______ of ______” with a word from each box.

Example:

==> a glass of water

1.	2.
3.	4.
5.	6.
7.	8.
9.	10.
11.	12.

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