In order to understand supply, you have to think like the producer.
In order to understand demand, you have to think like the buyer.
When you put them both together, you get a full market for the demand and supply of a good or service. Make sense? No? Still confused? Check out the following tools to help you!
First of all, I used most of my lesson from this Prezi from Mr. Kim (I borrowed it, I am citing him, hes great, thank you, Mr. Kim). See here: Mr. Kim's Supply & Demand
You should also check out Mr. Clifford's videos below. He has a YouTube Channel called ACDCLeaderhip. There are over 200 videos for economics! He really breaks it down for you. See here: Mr. Clifford's YouTube Channel