The section for Big, Small and Same Size is found on pgs 88-95 in the Comprehensive Curriculum of Basic Skills for Preschool.
We arranged the food containers from bigger to smaller and then from smaller to bigger. I also used three different types of containers per set: glass, aluminum and plastic. You can talk about the differences between the containers like how glass is breakable, how you can squeeze the plastic and how you can dent the aluminum. This would be a lot of fun for hands on teaching!
Our second project we used different sized plastic cups which we again order biggest to smallest and smallest to biggest. Once finished we poured water into the smallest cup until it was full. Once it was full, we poured the water directly into the next bigger cup to show how this cup is not full from the same amount of water. You can then add more water from your water container and once that cup is full pour into the next cup and so on. Once the largest cup was full I let J pour all of the water into the small cup and see how much it overflows! You can't beat making a mess! If the weather isn't warm enough where you are, you can always set up shop in the bath tub!