To practice good handwriting you must need have a good pencil grip. If you are holding the pencil incorrectly it can cause your writing to be sloppy and unreadable. Remember to not grip the pencil too firm or loose as this can ruin the way you write.
When using the worksheets with four lines make sure to write visible and big so letters come out legible. The child will begin practicing there handwriting using 4 lines until eventually writing using only 1 line. The child should at least practice 20 minutes on their handwriting sheet so results will be effective.