>1. I honestly don't know it as well as I think. This is a hard pill to swallow, but most of the time it's the reason why we struggle to explain things in clear

>1. I honestly don't know it as well as I think. This is a hard pill to swallow, but most of the time it's the reason why we struggle to explain things in clear terms. This is extremely true. Students often fall into the trap that they know something just because they can follow along when a teacher is doing it. But following is not the same as understanding and learning. >3. I haven't given it enough thought before trying to explain it. I think this is one of the main reasons we have trouble with explanations. We understand the subject but that doesn't mean we can explain it in terms that newbies can understand. Some of the worst teachers are the experts that have been doing something for a long time. Once they understand something it's hard to see why everyone should not but they don't realize that they've gained much of their understanding over years. Also, keep it simple. Reddit has the, "Explain it like I'm five" group so just follow that advice. Your subject will let you know if you are being too basic and you can adjust as needed. My advice is to plan the explanation before you try it, minimize jargon, keep it simple and make sure you know what you are talking about.