This second easy-level worksheet shifts the sorting focus from flat versus solid to corners versus no corners. Part A asks second graders to classify triangle, circle, rectangle, sphere, square, and oval into Has Corners or No Corners groups. Part B contains five fill-in-the-blank questions about rectangles, hexagons, and quadrilaterals. Part C wraps up with four true or false statements exploring whether squares are rectangles and whether hexagons really have six sides.