Grammar Collection: Noun Suffixes
Verbs can be made from nouns using a few, simple suffixes such as -ate, -ion, -tion and
Noun Suffixes (the activity) includes a running dictation to introduce the suffixes, a board game to practice using them and a worksheet for consolidation.
A set of instructions has been included with the PDF, so I won't go into too much detail here. The activities should last at least 20 minutes but might need a few other activities to pepper your lesson with, but all you need is here to download.