Coders' Club is a parent-supported program of coding activities for elementary-school kids. Kid-coders learn basic to intermediate coding and start to get the big ideas of loops, conditionals, and algorithms -- and that, hey, you can get a computer to do work for you. The individual clubs listed above use this application to support those coding activities and also coaches and administrators who help and teach coders, and can track their progress.
If you are new to a club, here are some good resources:
Members and non-members alike, feel free to try out the coding activities themselves.