Final answer:
A tree map does not use shades of color to indicate value like a pie chart does. It uses different-sized rectangles or squares nested within each other.
Step-by-step explanation:
A tree map does not use shades of color to indicate value like a pie chart does. While a pie chart uses different-sized slices to represent different values, a tree map uses different-sized rectangles or squares nested within each other to represent values. The size of the rectangle or square directly corresponds to the value it represents, rather than using different shades of color.