Students put shapes together to make new shapes and take shapes apart to form simpler shapes. Students work on spatial puzzles, often involving pattern blocks or tangrams. They look for plane shapes in complex drawings and explore tilings. They divide figures into equal fractional parts, for example, by folding along one, two, or three lines. Coordinate geometry in grades K-2 involves describing the motion of an object.
Students make maps of real, imaginary, or storybook journeys.
They describe the location of an object on a grid or a point in aplane using numbers or letters. Students in these grades also begin to explore the geometry of measurement . They order objects by length or weight. In first and second grade, they quantify properties of objects by counting and measuring. They determine the areas of figures by cutting them out of grid paper and counting the squares.