Try this interactive punctuation game.

Capital letters 

• At the start of a sentence (eg The boy is running).
  
• Days and months (e.g.Monday, March etc).
  
• The names of people and places (eg Melanie Hadden, Dublin, Tinahely, Ireland etc)
  
• Special Days (e.g. St. Patrick's Day, Christmas Eve etc)
• The titles of books, plays and movies (e.g. Running Wild, The Wreck of the Zanzibar etc)
• Abbreviations (e.g. I.N.T.O, R.T.E, B.B.C, U.N. etc)
• Full titles for people (e.g. Dr  Who, Sir Cliff Richard, Professor Plum, Mr.White etc)

Exclamation Mark
Use an exclamation point [ ! ] at the end of an emphatic declaration, interjection, or command.
"No!" he yelled. "Do it now!"
What on earth are you doing! Stop!

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The Possessive Apostrophe
The cat of the boy = The boy's cat 
(Before the s to show one owner)

The cat of the boys = The boys' cat 
(After the s to show more than one owner)

The hat of the woman = The woman's hat 
(Before the s to show one owner)

The hats of the women - The women's hats (Before the s because women is an irregular plural like mice, men, children etc )

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Quotation Marks
Quotation marks are sometimes           called inverted commas or speech marks.
These punctuation marks are placed either side of a word or phrase in order to identify it as a quotation, direct speech or a literal title or name.   
e.g. The man said, 
"I am going to the shop".                
"Where are you going?" asked the man.                "John!" said Mary, "I will read the book."                "I will watch television," said Joe, "and              then I will eat."                                          
I was reading the poem "The Cloud".