Schenectady--and more broadly, the Capital District, have many wonderful free outdoor activities. They are fun family places to go and enjoy our beautiful summers. And they are great places for you and your families to do Guerrilla Math! Just bring some sidewalk chalk or a portable whiteboard and markers, and your ideas for fun math explorations to share with families waiting for the event to begin or during intermissions, afterwards.
Here are few links I got from a colleague at Union College. If you can suggest other links, please post in the comments below.