Ds is 4 years old. We are starting a kindergarten curriculum this fall, but I have already been working with him (hence why we are doing kindergarten vs preschool). He knows his letter names and sounds, but it's not clicking for him with how to combine sounds to form a word. He wants to read, and I think sometimes he's trying too hard (overthinking it).
Example: He'll look at the word "sat" and say "ssss-aaaa-tttttt says...Sam (another word he's used to "reading" that starts with the same letter). I might say "What does cccccc-aaaaaa-tttttt say?" and he'll respond "hmmm... let's see... hmmm... I have to think about it."
Do you have any tips to help him? He's been stuck on this for a couple of months now. Every now and then he'll say the word without even thinking (once he sounded out "cat" and lost focus. I said "Buddy, focus on what we're doing." and he said "I said "cat"). I've tried to encourage him when he does that, but that seems to lead to overthinking again.