1) Grip- Think of how your hands natural work when you grab something, your thumb is to one side and you fingers are to the other. First we rest the club on our thigh closest to the target. Then we take our base hand (left hand for right handed golfers) and grab the grip, the thumb should be to the side of the grip not the top. The V formed between the fore-finger and thumb should line up with the leading edge of the golf club. With this hand you will hold the club firmly like a tube of toothpaste, squeeze a little paste out but not empty the tube. Your other hand will be more in the finger tips, you will cover the thumb of the base hand with the palm of this hand. Your finger tips will go under the grip and your thumb will go to the opposite side of the grip and your grip pressure should be lighter in this hand, more like holding a dirty diaper.
2&3) Stance and posture - we want to have an athletic stance where we have the ability to move left and right forward and back easily. we counter balance our forward tilt of our spine by sticking our butt out and up. Best way to find your position is to stand tall and place your hands on your thighs, gradually side them down your thigh until you are just above your kneecaps, while you are doing that you should be gradually sticking your butt out. Your back should be straight and you should be in balance.
4) Ball position- Mid irons (6,7,8) middle of the stance. Short irons (9,pw,sw,lw, etc) one ball behind middle or closer to your back foot (right foot for right-handed golfers) Long irons/ hybrid (5,4,3,2,1) one ball forward of middle or closer to your front foot. Fairway woods inside of front foot heel ( left heel for right-handed golfers) Driver front foot big toe ( left big toe for right-handed golfers) If you play a ball further back it will fly lower and have more spin. If you play a ball further forward it will fly higher with less spin.
5) Alignment- We aim our body on a parallel line to our target. I like to think of a set of railroad tracks, ball, club, and target on the outer track. Body, feet, knees, hips, and shoulders on the inner track. When on the course I pick a intermediate target no more that two feet in front of or behind the ball in line with our target and use that to help line myself up when I am stand over the ball without turning my head to find it.