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- 2.G.A.1Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. (Sizes are compared directly or visually, not compared by measuring.)
- 2.G.A.2Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
- 2.G.A.3Partition 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 describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.

Introduction to 2D shapes

2nd Grade Math

» Unit:

Shapes (2D and 3D)

Big Idea:Students learn the attributes of common 2D shapes.

Introduction to 3D Shapes

2nd Grade Math

» Unit:

Shapes (2D and 3D)

Big Idea:Students learn the terms edge, vertex, and face. Then, they work together to determine how many edges, vertices, and faces common 3D shapes have.

Identifying 2D Shapes

2nd Grade Math

» Unit:

Geometry

Big Idea:The Common Core standard is that students will be able to recognize shapes based on attributes such as the number of angles, faces and vertexes.

Review and Assessment of 2D and 3D shapes

2nd Grade Math

» Unit:

Shapes (2D and 3D)

Big Idea:Students review the attributes of 2D and 3D shapes before completing an assessment on 2D and 3D shapes.

Finding Rectangles

1st Grade Math

» Unit:

Shapes, Blocks, and Attributes

Big Idea:Students will look for as many rectangles as they can from a given set of shapes. The students will find as many solutions as they can.

Explaining Shape Attributes

2nd Grade Math

» Unit:

Shapes (2D and 3D)

Big Idea:Students explain shape attributes using written explanations.

Introduction to Angles

2nd Grade Math

» Unit:

Shapes (2D and 3D)

Big Idea:Students learn about angles and identify the number of angles in 2D shapes.

Attributes of Shapes

2nd Grade Math

» Unit:

Geometry

Big Idea:This lesson is built upon 2.G.A.1, which asks students to recognize and draw shapes having specified attributes.

Looking At Three Dimensional Shapes

1st Grade Math

» Unit:

Shapes, Blocks, and Attributes

Big Idea:Today your students will be introduced to 3-D shapes and investigate their defining attributes. The class will also play a game where they use their sense of touch to determine a hidden block.

Geometric Solids

2nd Grade Math

» Unit:

Geometry

Big Idea:The students will be able to identify geometric solids.

Three Dimensional Shapes

2nd Grade Math

» Unit:

Geometry

Big Idea:While 3 Dimensional shapes are not mentioned specifically in the Common Core, they do include the term face which is more appropriate for 3D shape attributes.

Spotting Two Dimensional Shapes

2nd Grade Math

» Unit:

Geometry

Big Idea:Students will be able to identify 2-dimensional shapes and tell the number of vertices and sides.

Attributes of 3D Shapes Part 2

2nd Grade Math

» Unit:

Geometry

Big Idea:Students should be able to relate the attributes of 3D shapes to those of 2D shapes.

Shapes and Lines Assessment

2nd Grade Math

» Unit:

Geometry

Big Idea:Students need to share their understandings of lines, line segments, shapes and attributes.

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, pentagons, hexagons, and cubes. (Sizes are compared directly or visually, not compared by measuring.)

2.G.A.2

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

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 describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.