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.
Opposite sides of a rectangle are equal in length, and the interior angles are all 90Â° in measure; thus, we can draw the rectangle as shown below. One characteristic of rectangles that we can readily calculate is its perimeter, which is the sum of the lengths of all the sides.