Cute idea for measurement common core- do a few times a year. Read Big Dog, Little dog, and then measure each child to see how tall they are. Make a chart for display, and leave out the measuring tape for a few days!
Include a bag with a velcro open/close, an open/close tie, a bag with a snap open/close, a box with a small button to push to open/close, a plastic spice container with a flip open/close, and a plastic container with a somewhat complicated open/close along with an assortment of jars and bottles. Read more at: http://carrotsareorange.com/montessori-in-the-home-open-and-close-tray/