Brooklynometry is struggling through the dog days of August with her kids. Any suggestions for fun things to do in Brooklyn with her brood?

I’m pretty relaxed about the mommy camp, it’s not much of a boot camp
really. The only parameter is no highway travel, until this weekend
when we drive to Virginia to visit my father and the Shenandoah County
Fair. If you have any suggestions for places to visit while here in
Brooklyn, I would love to hear them. I’m hoping to get to Added Value,
the Jewish Children’s Museum, and the Waterfront Museum. But we’ll see.