F is a letter that's fun to say, and it's easy! As the song instructs, put your bottom lip on your front top teeth and blow. Discuss with your child how /f/ is a sound that doesn't use their voice, only air. (The voiced version of F is V.)
   Think of words that contain the sound of F. Listen for where this sound occurs - in the initial position (french fried frogs), in the medial position (waffle), or in the final position (off and sniff). Hand mirrors are useful tools to help determine this.
  As a follow-up activity, cut 3 strips of construction paper, about 3 or 4 inches wide and in three different lengths. Discuss the terms "shortest" and "longest" and the concept of small, medium and large. Glue the strips together to make a giant-sized upper-case F (longest vertical, medium length on top, shortest in the middle). Use this to search for words containing letter F,and write/copy the words on the F.
   For extended thinking, discuss how the ph phonogram makes the /f/ sound. Most kids think this is silly, and I agree!