Make Art into a math review lesson for 3rd grade arrays. Kids can make their OWN October array (black cats, bats, spiders, ghosts, pumpkins, broomsticks, and more!) This is a great way to showcase your math and art on an October bulletin board. I do this with my students every year, and it turns out really neat! They can color the October Array header and make this into quite the eye catching art project.