
Ask your teacher to check your presentation for you before you learn it, or send it in to SOS Teacher.
As you learn it, keep breaking it down into separate headings or pictures until you have gone from a page of A4 to a small piece of paper with a maximum of 5 headings.
If you are talking about different subjects, draw them and try talking around the pictures. The more picture associations you can find, the easier your presentation will be to remember on the day.
Practise your talk with another person, or record it on to a minidisc or cassette, or onto your computer, and play it back. If you haven't been through the whole thing a few times, you won't know if you can remember all the points you want to make.