Copy and Paste is used when you want to make a copy of text or images. You can make a copy to the another place in the same document, to another document, and even to another programme (e.g. from e-mail to a word processor). The procedure is the same for all.

Highlight the text/image you want to copy.
Click on the Copy icon.
Click with your mouse pointer in the place / document where you want to paste the text/image.
Click on the Paste icon.
 

Cut and Paste is used when you want to move words or sections of text from one place to another. You can move text or images from one place in a document to another, or to another document, or to another programme. The procedure is the same for all.

Highlight the text/image you want to cut.
Click on the Cut icon.
Click with your mouse pointer in the place / document where you want to paste the text/image.
Click on the Paste icon. 

Instead of  using the icons you could also use the Edit Menu. You will see Copy, Cut and Paste in the menu.
You could also use a keyboard method:

• Ctrl-C to Copy (C for Copy)
• Ctrl-X to Cut (X is the pattern of open scissors)
• Ctrl-V to Paste (V for Very Clever!! ) - that was a joke.

Note: The Paste icon or menu item is not available until something has been copied or cut.