Elicit ideas. You could feed back answers visually using the tables provided in the PDF.
If students want to find out more about any of the topics, suggest that they do some independent research and feed back to the class.
3. Build up the two lists on the board. Establish that one group are acronyms, i.e., they can be pronounced as words: LAMP /læmp/. The other group are abbreviations, i.e., they are pronounced as individual letters: API /ˌeɪ pi ˈaɪ/.
Elicit that shortened forms with normal consonant/ vowel patterns are usually acronyms, pronounced as a single word, while those with unusual patterns – this is more common – are usually abbreviations, pronounced with individual letters.