There are a few things you could note about prefixes, roots and suffixes to make a stellar power point for your assignment.
First of all I would do a search on this website's documents just in case a teacher has already put something together that you might be able to gather ideas from, of course ultimately creating your own. Likewise, in the documents section, you might note that teachers have made handouts on word parts. They might be of value.
A few of the things I point out when teaching word parts include these:
- prefixes and suffixes both change meaning
- only suffixes change part of speech
- prefixes and suffixes are usually English language derived; roots are often from Latin/Greek
If you are doing a presentation that requires some action, you might consider a slide with a list of prefixes, roots and suffixes (without meanings). Have your audience make up crazy words.
On the next slide, provide definitions of the word parts and create meaning of the crazy words they made.
'Prefixes' and 'Suffixes' are very important elements that contribute to the making of new words in a language, and thus to the enrichment of the vocabulary.
'Prefixes' are elements added before an existing word to form a new one,e.g. un+pleasant=unpleasant. 'Suffixes' are elements added after an existing word to form another, e.g. go+er=goer. The 'Regular Process' of making new words by adding prefixes or suffixes or both is called 'Derivation'. An example of derivation by adding both a prefix at the beginning and a suffix at the end would be 'de-romanticize'(de- & -ize)
There are native English prefixes and suffixes added to foreign words, and foreign prefixes and suffixes added to native words. Such words of mixed breed are known as 'hybrids', and the phenomenon is called 'hybridism'
I would start by saying that prefixes and suffixes are the way that words have of identifying themselves. Start by discussing the Latin origins of most English words and go from there. One good word to start with is: "homophone" put the word on the board divide it into syllables: "homo and phone" say that "homo" means "same" and "phone" means sound. Homophones are words that: "sound the same" but have different meanings. It can be an interesting side lesson to discuss varying kinds of homophones too. Make it clear that you can identify the meaning of a word through breaking it down,and you should be okay!