We had several lessons on how to measure area using non-standard units. One way was to measure the area of square rectangles using the tiles on the floor. We marked off various squares and square rectangles with painting tape and then counted how many tiles it took to cover that shape. To reinforce that area measures the amount of surface that is covered, the students covered crackers in spreadable cheese making sure to cover the entire area. They also made various squares and square rectangles out of color tiles. They then recreated those shapes on construction paper with paper color tiles. They then counted how many tiles it took to create the shape and recorded it. They also cut out various shapes and layered them on top of one another to see which one covered the most surface. We discussed that when you layered two objects, if you could still see the outside edges of one of the shapes or if the shape covered the other shapes completely, then it had a larger area. Last but not least, the students created squares and square rectangles out of Cheez-Its. They then went on a gallery walk to compare the area of the various shapes they created. After comparing the areas, then of course they ate them!