Once a week on a Monday for about an hour.
More fun than anything else.
I’m an art teacher, not a music teacher. But I know kindergarten and first grade. I taught those kids for nearly three decades.
We take small steps: Which direction the neck of the ukulele goes. Strumming in a pattern together.
I bought a pack of little colored sticker dots to put under the bottom string, third fret so they knew where the C chord was. You can play a lot with just the C chord. And then I throw in a couple of others. An F chord if we need it. Maybe a C7. But mostly we find a beat and I get them to sing loudly and it all works.