I've recently started putting my resources online for the Population topic for Preliminary Geography. Most people have probably finished teaching it by now, but perhaps you can use it for revision closer to the yearly exams.
If you are looking for some generic population videos I've embedded a good one from BBC and another from National Geographic. Check them out...
I've put some resources together for global fertility. I've selected a series of short videos so you can just get a quick overview of key ideas. I've also put some of the information in diagrams to make it a bit more visually interesting. I'll add a handout of the text soon. Check out fertility resources...
Lastly, I've uploaded an overview of population pyramids and embedded a video from the Distilled Demographics series from the Population Reference Bureau. Worth a look. A handout is attached. Check out population pyramids...