A dot array is a single unit item. Meaning, it has to be an arrangement of identical items: cans of soup, flowers, corn fields, automobiles, etc. This is a good introduction of units for future math problems (this will be more significant when calculating areas in squares and units of measurements). The second important item is understanding how to group rows and columns. Use these terms and vocabulary explicitly. How an array is grouped effects its equation. Group in either rows or columns. If