This challenging worksheet pushes kindergartners to reason carefully about 2D shape attributes. Part A poses four multiple-choice questions—which shape has 4 equal sides and 4 corners (square), how many sides an oval has (0), which shape has exactly 3 corners (triangle), and how many corners a rectangle has (4).

Part B follows with five fill-in-the-blanks that compare and combine shapes: a hexagon has 6 sides, the shape with no corners is a circle, a triangle has 3 sides, a rectangle has 1 more side than a triangle, and a square and rectangle both have 4 corners. Comparison thinking like this builds the geometry vocabulary first grade depends on.