Children with expressive language disorder have difficulty conveying or expressing information in speech, writing, sign language or gesture. (For preschool children, the difficulty expressing themselves in writing is not evident, as they have not started formal education.)
Rectangles have longer sides than any type of square. Opposite sides of rectangles are of equal lengths. All sides of squares are of equal lengths. Rectangles have longer sides than any type of square. Opposite sides of rectangles are of equal lengths. All sides of squares are of equal lengths.
1 In this case, the area within our rectangle is 4 Ã 3 = 12 square inches.  In the case of squares, since all four sides are the same, you can simply take the measurement of one side and multiply it by itself (also called squaring it or taking it to the second power) to get a square inches value for area.