Handwriting and letter formation are sometimes difficult things for young children to learn. Many early errors correct themselves as students gain more experience with the writing process. Most good handwriting programs contain some type of tactile component, during which you model and then have your son trace letters in sand, form letters using clay or play-dough materials, or use a paint brush dipped in water.

Model the correct letter formation technique and then provide praise for your son's efforts. You might consider looking into a handwriting program that has a recommended letter sequence for practice. Many letters contain similar strokes and could be learned as a group.