My son will be 7 in June. I am so frustrated and not sure what I am doing wrong. He doesn't seem to grasp letters or sounds. I can show him 6 letters and he can pick out what letter I ask for. If I ask him what a letter is by itself he gets it wrong. He hates teach your child to read. I even bought a kindle fire. Everyday he does alphabet puzzles on the fire. When he puts them together I have him repeat me back the letter after it tells him. He can pick sight words out from other sight words. It is the same thing though. If the word is by itself he has no clue what it is. What am I missing?