Math Lessons! What do you want to see?

I'm looking to start making mathematics tutorials. I'll be posting video lessons on the subjects, taking people through the topic step by step. Then I'll share it on to STEEMIT with a Worksheet as well so that people who are looking to practice their math skills can go from this:

To actually understanding the topic. The one thing that I need first is recommendations. I want to know what topics people are struggling with. This can be students, trying to understand some of their materials or parents looking to teach some aspects of maths to their children.

If you let me know what it is you want to learn then I will do my best to make a comprehensive video and practice sheet for you.

Let me know in the replies what you need help with.

Thanks guys!