Teach Long and Short Vowel Sounds
Work with your child to come up with as many words as you can think of that contain a certain vowel — like /a/. Then, review the difference between the long /a/ sound, like ape and hail, and the short /a/ sound, like apple and hat. Revisit the original list of words you came up with and highlight the long /a/ sounds in yellow, and the short /a/ sounds in green. Then practice enunciating them together, so that your child hears the differences between the long and short sounds. When you're done, repeat the activity using a different vowel.