A beautiful jump shot!
It's hard to get any information out of Henry about what he is working on at kindergarten, but I'd say it's safe to say that they are working on phonics! Any free time Henry has at home these days, he wants help spelling words. "Because I can read now, you know, Mom."
Here's a personal message to Sam from Henry: "I love you, Daddy. Do you miss me? You're my favorite Daddy in the whole entire world. I love you and I hope you have a great trip. I'll see you on the fourth day."