Here are links to instructions for some of the origami models for the session.
Modular Origami Stars
If you are a beginner, start with Star 4 first which has detailed assembly instructions.
All of these stars use A paper except Octagram Wreath which use 1:2 rectangles. They make large stars from the given paper: you could cut and use four A6 rectangles from a single sheet of A4. A7 or A8 may be suitable for experienced folders.