It appears that there are many teachers who do not know how letter sounds let alone parents.
So, I copied 3 videos below for your listening pleasure. Please listen to them carefully. Ask your kids, especially kids who do not like reading, how to pronounce a few letters, say, F, M and L and please write to me and let me know if it is different from what you hear below.
You may write to me at: firstname.lastname@example.org
Here are the three videos.