This is aligned with the following California State Standards:
Communicate understanding of separateness by recognizing objects that are not joined together. Communicate generic understanding of some as a certain amount or a number of people or things.
Recognize enclosure as an enclosed space that lies within a boundary that distinguishes it from the space that lies outside the boundary.
Communicate understanding that a unit square is a square with edge lengths of 1 unit and area of 1 square unit. Communicate understanding of area as the measure of space contained within the outline or boundary of a two-dimensional object or figure.
Calculate area of a square or rectangle by filling a figure with unit squares or tiles and counting the total number of unit squares or tiles. Calculate area of a square or rectangle by counting the number of square units drawn to cover the area.
Solve real-world problems by determining the area of a square or a rectangle. The area of a square or a rectangle can be calculated by counting the number of unit squares or tiles.