Math for Kids-Introduction to Geometry for preschoolers. The foundation for math learning begins much earlier that we realize. Playing creatively with shapes and patterns does more than you can imagine for later math skills
nature abc - go on a nature walk and create letters of the alphabet using found objects. Document through photos to create a unique class alphabet book - maybe it can be adapted to "found poetry".
Back yard learning centers: 10 ideas for outdoor classrooms. This also works in the water bin using an ice cube tray
Outdoor art how do I make a sand painting craft?