When long jumping, try to remember:
Find your dominant foot. If you are not sure of your jumping foot, ask a friend to gently push you forward from behind. The foot that you step forward off is your dominant foot
Count your steps. Start with your dominant foot placed on top of the center of the jumping board, since that is where you will want to jump from. Then run at the pace that you are expecting to run towards the jump. Measure off at 5, 6 or 7 steps, counting one step as every time your dominant foot hits the ground.
Run down the track. Take long, fast strides and keep your back straight, looking straight forward. When you come near the jumping board, do not look down, this will cause you to lose momentum.
Jump. Align yourself with your mark and run, just like before. When you come to the board, jump vertically: your speed will carry you forward.
When you jump, you want to shoot your chest out, and look to the sky with your arms in back of your body. Land with your arms and legs in front of you, as close to fully-extended as possible
Throw your body weight forward when you land. Use your remaining forward momentum to do this. You will be measured from the furthest back mark you make so you don’t want to fall backwards
Walk out the back/side of the pit
Watch the video below for a great example of all steps.