I use a lot of thinking routines in Kindergarten and this is one of my favourites to do in our outdoor program that my colleague and friend Alex shared with me. She loves math play and can be counted upon to share her new learning with her teacher friends. This routine is called Which One Does Not Belong. It is. enjoyed by the children because these is not one answer. It provides them with the opportunity to think about which object does not belong and then share their thinking with the group. There are many, many learning opportunities with thinking routines when used consistently with students. If you are new to this routine then a helpful site is Meaningful Moments. I have included the link below. Meaningful Mathematics...
We love our Wonder Wagon and couldn't imagine doing our outdoor program without it. The wagon was purchased along with some outdoor resources, using a Go Grant from HCTF.  go grant link The wagon is collapsible, light weight and was purchased from Canadian Tire. (at the time we actually purchased 4 of them for the primary team).  I use a small crate (donated by a family) to corral our journals and read alouds. Each student has their journal in a water resistant bag from Dollertree. We use baskets for our drawing tools and sidewalk chalk. We also have two sit-upons from The Outdoor Store for guests to use as they sometimes do not have waterproof gear.  We also include hand sanitizer as children eat their morning snacks and sometimes lunch at the beach.  I have outdoor kits which we use for art, math, science or literacy as well as  outdoor games that we purchased from HCTF or received free through their Wild School workshop.  Resource HCTF link...