2.1 Identify and describe common geometric objects (e.g., circle, triangle, square, rectangle, cube, sphere, cone).
2.2 Compare familiar plane and solid objects by common attributes (e.g., position, shape, size, roundness, number of corners).
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1.1 Sort objects and data by common attributes and describe the categories.
1.2 Represent and compare data (e.g., largest, smallest, most often, least often) by using
pictures, bar graphs, tally charts, and picture graphs.
2.1 Describe, extend, and explain ways to get to a next element in simple repeating
patterns (e.g., rhythmic, numeric, color, and shape).
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2.1Describe and classify plane and solid geometric shapes (e.g., circle, triangle, square, rectangle, sphere, pyramid, cube, rectangular prism) according to the number and shape of faces, edges, and vertices.
2.2 Put shapes together and take them apart to form other shapes (e.g., two congruent right triangles can be arranged to form a rectangle).
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2.1 Identify, describe, and classify polygons (including pentagons, hexagons, and octagons).
2.2Identify attributes of triangles (e.g., two equal sides for the isosceles triangle, three equal sides for the equilateral triangle, right angle for the right triangle).
2.3 Identify attributes of quadrilaterals (e.g., parallel sides for the parallelogram, right angles for the rectangle, equal sides and right angles for the square).
2.4 Identify right angles in geometric figures or in appropriate objects and determine whether other angles are greater or less than a right angle.
2.52/3 Identify, describe, and classify common three-dimensional geometric objects (e.g., cube, rectangular solid, sphere, prism, pyramid, cone, cylinder).
2.6 Identify common solid objects that are the components needed to make a more complex solid object..
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3.1 Identify lines that are parallel and perpendicular.
3.4 Identify figures that have bilateral and rotational symmetry.
3.5 Know the definitions of a right angle, an acute angle, and an obtuse angle. Understand
that 90°, 180°, 270°, and 360° are associated, respectively, with 1⁄4, 1⁄2, 3⁄4, and full turns.
3.7 Know the definitions of different triangles (e.g., equilateral, isosceles, scalene) and identify their attributes.
3.8 Know the definition of different quadrilaterals (e.g., rhombus, square, rectangle, parallelogram, trapezoid).
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2.11 Identify angles as vertical, adjacent, complementary, or supplementary and provide descriptions of these terms.
2.31 Draw quadrilaterals and triangles from given information about them (e.g., a quadrilateral having equal sides but no right angles, a right isosceles triangle).
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