I strongly believe that the Letter Sounds are the most important step of learning to read. If a child does not fluently know his/her letter sounds, he/she cannot sound out or blend sounds. Keep practicing with your child.
Here are some ideas for you to further help your child learn Letter Sounds:
Break up the Alphabet into small parts and have your child practice saying the individual sounds the letters make. For Vowels you want to practice Short Vowel Sounds.
Start with the Letter Sound Video A-E. This video teaches the sounds of the letters: A, B, C, D, and E and move to each additional video after your child master each group of sounds.
Also, have your child watch and re-watch the Non-Musical Letter Sounds Video with all the sounds. As you watch the video practice saying sounds aloud. You can even mute the Non-Musical Letter Sounds Video on your TV and test your child on each group of sounds before you teach him/her the next group of Letter Sounds.
To further assist your child’s learning of Letter Sounds, use the Letter Flashcards and as your child sees the each Upper and Lowercase Letter have your child practice saying the sound that the letter makes (Uppercase and Lowercase Letter Flashcards).