Sing the alphabet song. It's one of the simplest ways to introduce your child to the alphabet. The tune is catchy, simple to remember and teaches children the proper order of letters. Make a CD that includes the alphabet song and play it in your car while transporting your child or randomly play it at home.
Read alphabet books. Keep your child's attention by using a variety of books to teach the alphabet. A few examples are "Dr. Suess's ABCs," "Alphabet City," "Elmo's Alphabet Soup," "Kai-lan's ABCs," "Little Critter ABCs," "Chicka Chicka Boom Boom," "Thomas' ABC Book," "Richard Scarry's Cars and Trucks from A to Z" and "Star Wars ABC."
Practice writing the alphabet. Print worksheets for him to trace the letters while you tell him the name of the letter. Start with "A" and work your way to "Z." Introduce worksheets that transition your child from tracing letters to printing letters. Websites such as First-School.ws, ABC Teach and DLTK's Teach have free printable alphabet worksheets.
Use alphabet flashcards daily. Make your own flashcards by writing one capital letter on an index card until you have a card for each letter. Place a picture or large sticker of an item or person whose name begins with the letter on the card. Repeat the process with lower-case letters. Another option is to purchase or print premade flashcards. Show one card to the child at a time. Tell the child the letter on the card until he is able to do so on his own. After a while, begin randomly selecting a card to ensure the child is able to identify each letter by its appearance and not by the order in which it is flashed.