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Finding the area of an irregular shape by slicing it into infinitely thin rectangles and adding them up.
Fractions represent parts of a single unit, usually a circle (pie) or a bar (chocolate). is one half of a circle; is two quarters. The Logic: By looking at the shapes, you can see that
Zooming in on a curve until it looks like a straight line to find its exact slope at a single point. Why Visualizing Works
