From your notes decide on the most important things that need to be said. If you have too much material, be selective. As a guide: 3 key points are sufficient for a 10-15 minute presentation. 6 key points are sufficient for a 30 minute presentation. 8 key points are sufficient for a 45 minute presentation.
Materials and Methods This section explains what resources were used to test the hypothesis (materials) as well as how the process of testing it was carried out. The main task for this section is to describe what was done so that an informed colleague in the field could repeat the experiment or project based on the information provided.