Tips on how a Right Handed Person Should Teach a Left Handed Child Handwriting
Talk through with your child the fact that you use a different hand to do tasks, like write, draw and cutting out, making it clear that that is normal and people just do things differently.
Learning to write is the same for left and right handed children except for a few minor adjustments in the pencil grip, paper tilt and lighting position. You could talk through and demonstrate these differences; sitting next to and on the right of your child if they are left handed and you are right handed. Sit on the left of your child if you are left handed and your child is right handed.
Show them the correct paper position and tilt for you and then set up the correct paper position and tilt for them. Explain that the paper is positioned differently for them so that they can see the paper and their writing as they write, which they could not do if it was positioned like yours.
Because the dynamic/mature tripod grip is considered the best grip for all writers to use it is easy to show and help your child to do. The only difference is that for left handed writers they hold the shaft a little higher up and they angle the tip of the pencil towards the elbow rather than the shoulder. These small adjustments allow them to see what they are writing without affecting the free flowing movements of the hand.
Before teaching your child to hold a pencil it is a good idea to practice and make sure your own pencil grip is up to the task. Children love to copy their parents so you need to lead by example.