The sound letters make is a stepping stone to reading independently. Below, I have added some videos that your child can watch, but remember the key to learning these sounds is by watching you speak to them as well. After they watch the video, sit with them, face to face and go over the sounds as you use flashcards (optional).
When your child is ready to write and discuss phonics, I have included a 30ish page workbook that you can buy and download for $2. Even if your child is still earning to write, I encourage working through this workbook. It helps with literacy and critical thinking skills.