Help them practice identification before they begin writing to help them recognize the letter P. Give them a choice between a few similar looking letters, such as B and D, and have them choose which letter is the right one.
Download online printable worksheets for young children that feature the letter P. Have them trace the letter a few times, then try to write the letter by themselves. Worksheets to print and pass out to children are available in the resources section.
Have them come up with their favorite words or animals that begin with the letter P. Give them suggestions to get them started, such as panda, puppy or pretty. When they choose five of their favorite P words, help them spell the words and write them down.
Help them show off their creativity by coming up with a story that incorporates their favorite P words. Help them write their story down with a maximum of three to four short sentences. Focus on them using the letter P as much as possible to make a game out of it, then allow them to take the story home to show off to their parents.