CCSS.Math.Content.2.G.A

CCSS.Math.Content.2.G.A is a cluster heading. These are the individual standards under it.

• CCSS.Math.Content.2.G.A.1

  Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pe...

• CCSS.Math.Content.2.G.A.2

  Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.

• CCSS.Math.Content.2.G.A.3

  Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and descr...

01

What Students Need to Do

Students identify and draw shapes using attributes such as sides, angles, and faces. They arrange equal squares in rectangles and divide circles or rectangles into equal shares.

02

What Mastery Looks Like

A student can draw a shape from clues, name it, and explain which attributes support the name. They can count squares in equal rows and columns and label halves, thirds, or fourths correctly.

03

Common Misconceptions

Students may call a rotated square a diamond or classify shapes by size and direction instead of attributes. They may count grid lines instead of squares, or call pieces equal when their areas differ.

04

How to Assess It

Use a three-part exit ticket: draw a five-sided shape, count the squares in a 3-by-4 grid, and divide a circle into fourths.

1. 01

   Give pairs craft sticks and clay, call out attributes, then have them build, name, and sort matching shapes.

2. 02

   Show a rotated square beside a rhombus and ask, "Which attributes prove each name?" Students write two sentences, then compare.

3. 03

   Play Attribute Bingo with cards showing shapes, clues such as five sides, and rectangle grids students must count.

4. 04

   Photograph floor tiles, window grids, and sliced foods around school, then label shapes, rows, columns, and equal shares.

• CCSS.Math.Content.3.G.A

  The 3rd Grade version of this standard.

• CCSS.Math.Content.1.G.A.1

  Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); bu...

• CCSS.Math.Content.1.G.A

  The 1st Grade version of this standard.