Game targets never appear exactly the same way twice. I really can't remember how I learned. I certainly wasn't taught. I just said to myself, "I missed" and tried to remember what I did wrong. Today, about 50 plus years later, I still pick up a few boxes of shells and go over to my neighbors farms. They're each only about a mile and half away and have barns and silos infested with starlings and pigeons. I have permission to shoot whenever I'd like, but I always confirm first before going, just to be sure I'm not going to interfere with what they're doing. If you set up about an hour or two before dusk, the birds will be returning to the silos and barns. The more you shoot and the later it gets, the more desperate they are to get in and the harder to hit. They come in low and fast. It doesn't take long to figure out what you're doing wrong. We always pick up the birds and spent shells and thank the farmer. He's happy because we saved him some grain and crops and we are too because we had some fine shooting. I certainly agree with Graybeard, It's a matter of putting lead down the barrel and seeing where it didn't go. An instructor can be of great benefit if he watches a kid shoot and watches his form..follow through etc. What I did with my kid, shooting at clays, I loaded an empty in his chamber......yeah, sure enough, he was flinching.