It is best not to make assumptions about what pupils know, so we will start with some very basic concepts. Feel free to ignore this if you are quite sure of these ideas!
A noun is a naming word and will be either masculine or feminine in French. Masculine nouns will have "un" or "le" before them, while feminine nouns will have "une" or "la" before them.
A verb is a "doing" word and it may be regular or irregular. A regular verb is a verb which follows a pattern or a set of rules, while an irregular verb is one which goes its own way and has to be learned separately.
An adjective is a "describing" word. It will give you information about a noun – whether something is big, small, lovely or lousy! In French, adjectives “agree” with the noun – you have to make them singular or plural, masculine or feminine.
An adverb is also a "describing" word, but it describes verbs and tells you how something is done – whether it is done slowly, well or brilliantly (these words often end in "ly" in English). An adverb will usually be recognisable in French by having “ment” at the end of the word.