i only started ib this year so someone else could probably answer better than me
but to me it seems like a mix between psychology and philosophy and stuff. We discuss questions like
Is seeing believing? and
What is reality? The teacher showed us interesting documentaries and we talk about facts like - what we see is only based 10% on our eyes - our expectation changes what we actually 'see' or 'hear.' We also talk about optical illusions. Then we talk about some theories about sensory perception which I cannot remember the names of :P That's the first topic.
Next we'll talk about Logic. and then presumably something similar, and then I guess we're going to tie it into our subjects, like how the stuff we discussed tie to History and e.g. how stereotypes/expectations affects the study of biology or something like that.
i'm sure you should be able to find a guild online to help you understand it