PIP stands for personal interesty project, and for our school, you get selected at the start of the year. This is how it works at my school: 1-2 people are picked by each teacher in each subject. Then if you are picked for 2 or more subjects, you have to do PIP and incorporatew those into your presentation which you work on over the 6 months. Anyway I was picked for Maths and Food Tech, not the easiest combination. But its all over now, so its all good.
Also my IST teacher is bad, and I just find it boring tbh.... you must have a good teacher, or better than mine at least, but what you're doing at the moment sounds like heaps of fun XD I don't think we're doing anything in class anymore, just messing around.