Have a look at your revised object presentation and compare to last week:

You seem to be improving at improvisation. Look also at the talks of the others and be ready to give feedback: 

Look over the start of the Academic Presentations unit, pages 1 to 3:

Use the information and experience you've gained about visuals, introductions and/or assertions to create your Pecha Kucha for next class. You can upload your Pecha Kucha here with the samples: