Our local science center here in Milwaukee is called Discovery World. It's a wonderful building right on the lake with an aquarium and a schooner and an area on the second floor where you can make things. The last time we visited you could sign up to make hats.
We were there at the tail end of the day and possibly even the last day of that particular project, so the fabric choices were limited, but it all worked out. Mona, Quinn, my niece Ellora, and my cousin Mary all made fuzzy bear hats. Aden went her own way and made a bunny hat with a fabric that at first was not what she would have chosen, but that grew on us, and now we're glad that's what she used.
There were several assistants at the work stations. They measured the kids' heads and showed them how to use that information to create a pattern out of paper, pin that to material, and cut out the necessary pieces.
So, I wouldn't have pegged the science center as a place to learn about sewing, but who cares? Because hats!