Area
3rd Grade


Arizona  K12 Academic Standards:
3.MD.C.5a
Common Core State Standards:
Math.3.MD.5a or 3.MD.C.5.A
Kentucky Academic Standards (KAS):
3.MD.5.a
Mississippi College and CareerReadiness Standards:
3.MD.5a

A square with side length 1 unit, called “a unit square,” is said to
have “one square unit” of area, and can be used to measure area. 
Georgia Standards of Excellence (GSE):
3.GSR.7.1

Investigate area by covering the space of rectangles presented in realistic situations using multiple copies of the same unit, with no gaps or overlaps, and determine the total area (total number of units that covered the space). 
North Carolina  Standard Course of Study:
3.MD.5

Find the area of a rectangle with wholenumber side lengths by tiling without gaps or overlaps and counting unit squares. 
New York State Next Generation Learning Standards:
3.MD.5.a

Recognize a square with side length 1 unit, called "a unit square," is said to have "one square unit" of area, and can be used to measure area 
Tennessee Academic Standards:
3.MD.C.5.a

Understand that a square with side length 1 unit, called "a unit square," is said to have "one square unit" of area and can be used to measure area. 
Arizona  K12 Academic Standards:
3.MD.C.5b
Common Core State Standards:
Math.3.MD.5b or 3.MD.C.5.B
Kentucky Academic Standards (KAS):
3.NF.3.b
Mississippi College and CareerReadiness Standards:
3.MD.5b
North Carolina  Standard Course of Study:
3.MD.5.b

A plane figure which can be covered without gaps or overlaps by
n unit squares is said to have an area of n square units. 
Georgia Standards of Excellence (GSE):
3.GSR.7.2

Determine the area of rectangles (or shapes composed of rectangles) presented in relevant problems by tiling and counting. 
New York State Next Generation Learning Standards:
3.MD.5.b

Recognize a plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units. 
Tennessee Academic Standards:
3.MD.C.5.b

Understand that a plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units. 
Alabama Course of Study Standards:
21

Count unit squares (square cm, square m, square in, square ft, and improvised or nonstandard units) to determine
area. 
Arizona  K12 Academic Standards:
3.MD.C.6

Measure areas by counting unit squares (e.g., square cm, square m, square in, square ft, and improvised units). 
Common Core State Standards:
Math.3.MD.6 or 3.MD.C.6

Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units). 
New York State Next Generation Learning Standards:
3.MD.6

Measure areas by counting unit squares. Note: Unit squares include square cm, square m, square in., square ft., and improvised units. 
Tennessee Academic Standards:
3.MD.C.6

Measure areas by counting unit squares (square centimeters, square meters, square inches, square feet, and improvised units). 
Alabama Course of Study Standards:
20

Find Find the area of a rectangle with whole number side lengths by tiling without gaps or overlays and counting unit
squares 
Arizona  K12 Academic Standards:
3.MD.C.7a
Common Core State Standards:
Math.3.MD.7a or 3.MD.C.7.A
Kentucky Academic Standards (KAS):
3.MD.7.a
Mississippi College and CareerReadiness Standards:
3.MD.7a
North Carolina  Standard Course of Study:
3.MD.7.a

Find the area of a rectangle with wholenumber side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths. 
Tennessee Academic Standards:
3.MD.C.7.a

Find the area of a rectangle with wholenumber side lengths by tiling it and show that the area is the same as would be found by multiplying the side lengths. 
Arkansas Academic Standards:
3.MD.C.7.B

Multiply side lengths to find areas of rectangles with wholenumber side lengths in the context of solving real world and mathematical problems, and represent wholenumber products as rectangular areas in mathematical reasoning 
Arizona  K12 Academic Standards:
3.MD.C.7b
Common Core State Standards:
Math.3.MD.7b or 3.MD.C.7.B
Kentucky Academic Standards (KAS):
3.MD.7.b

Multiply side lengths to find areas of rectangles with wholenumber side lengths in the context of solving real world and mathematical problems, and represent wholenumber products as rectangular areas in mathematical reasoning. 
Georgia Standards of Excellence (GSE):
3.GSR.7.3

Discover and explain how area can be found by multiplying the dimensions of a rectangle. 
Mississippi College and CareerReadiness Standards:
3.MD.7b

Multiply side lengths to find areas of rectangles with wholenumber side lengths (where factors can be between 1 and 10, inclusively) in the context of solving real world and mathematical problems, and represent wholenumber products as rectangular areas in mathematical reasoning. 
North Carolina  Standard Course of Study:
3.MD.7.b

Multiply side lengths to find areas of rectangles with wholenumber side lengths in the context of solving problems, and represent wholenumber products as rectangular areas in mathematical reasoning. 
Tennessee Academic Standards:
3.MD.C.7.b

Multiply side lengths to find areas of rectangles with whole number side lengths in the context of solving realworld and mathematical problems and represent wholenumber products as rectangular areas in mathematical reasoning. 
Arkansas Academic Standards:
3.MD.C.7.C

 Use tiling to show in a concrete case that the area of a rectangle with wholenumber side lengths a and b + c is the sum of a × b and a × c
 Use area models to represent the distributive property in mathematical reasoning

Arizona  K12 Academic Standards:
3.MD.C.7c
Common Core State Standards:
Math.3.MD.7c or 3.MD.C.7.C
Kentucky Academic Standards (KAS):
3.MD.7.c
Mississippi College and CareerReadiness Standards:
3.MD.7c

Use tiling to show in a concrete case that the area of a rectangle with wholenumber side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning. 
North Carolina  Standard Course of Study:
3.MD.7.c

Use tiles and/or arrays to illustrate and explain that the area of a rectangle can be found by partitioning it into two smaller rectangles, and that the area of the large rectangle is the sum of the two smaller rectangles. 
Ohio's Learning Standards:
3.MD.7.c

Use tiling to show in a concrete case that the area of a rectangle with whole number side lengths a and b + c is the sum of a × b and a × c (represent the distributive property with visual models including an area model). 
Tennessee Academic Standards:
3.MD.C.7.c

Use tiling to show in a concrete case that the area of a rectangle with wholenumber side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning. For example, in a rectangle with dimensions 4 by 6, students can decompose the rectangle into 4 × 3 and 4 × 3 to find the total area of 4 × 6. (See Table 3  Properties of Operations) 
Alabama Course of Study Standards:
23

Decompose rectilinear figures into smaller rectangles to find the area, using concrete materials 
Arizona  K12 Academic Standards:
3.MD.C.7d

Understand that rectilinear figures can be decomposed into nonoverlapping rectangles and that the sum of the areas of these rectangles is identical to the area of the original rectilinear figure. Apply this technique to solve problems in realworld contexts. 
Common Core State Standards:
Math.3.MD.7d or 3.MD.C.7.D
Kentucky Academic Standards (KAS):
3.MD.7.d

Recognize area as additive. Find areas of rectilinear figures by decomposing them into nonoverlapping rectangles and adding the areas of the nonoverlapping parts, applying this technique to solve real world problems. 
Mississippi College and CareerReadiness Standards:
3.MD.7d

Find areas of rectilinear figures by decomposing them into nonoverlapping rectangles and adding the areas of the nonoverlapping parts, applying this technique to solve real world problems. Recognize area as additive. 
New York State Next Generation Learning Standards:
3.MD.7.d

Recognize area as additive. Find areas of figures composed of nonoverlapping rectangles, and apply this technique to solve real world problems. Note: Problems include no more than one unknown side length. 
Arkansas Academic Standards:
3.G.A.2

 Partition shapes into parts with equal areas
 Express the area of each part as a unit fraction of the whole
For example: Partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape.

Arizona  K12 Academic Standards:
3.G.A.2

Partition shapes into b parts with equal areas. Express the area of each part as a unit fraction 1/b of the whole. (Grade 3 expectations are limited to fractions with denominators b = 2,3,4,6,8.) 
Common Core State Standards:
Math.3.G.2 or 3.G.A.2

Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape. 
Georgia Standards of Excellence (GSE):
3.GSR.6.3

Identify lines of symmetry in polygons. 
New York State Next Generation Learning Standards:
3.G.2

Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. e.g., Partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape. 
Tennessee Academic Standards:
3.G.A.2

Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area and describe the area of each part as 1/4 of the area of the shape. 
Wisconsin Academic Standards:
3.G.A.2

Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the
whole. For example, partition a shape into four parts with equal area, and describe the area of each part as 1/4
of the area of the shape. 
Pennsylvania Core Standards:
CC.2.3.3.A.2

Use the understanding of fractions to partition shapes into parts with equal areas and express the area of each part as a unit fraction of the whole. 
Pennsylvania Core Standards:
M03.CG.1.1.3

Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. 
Pennsylvania Core Standards:
CC.2.4.3.A.5

Determine the area of a rectangle and apply the concept to multiplication and to addition. 
Pennsylvania Core Standards:
M03.DM.3.1.1

Measure areas by counting unit squares (square cm, square m, square in., square ft, and nonstandard square units) 
Pennsylvania Core Standards:
M03.DM.3.1.2

Multiply side lengths to find areas of rectangles with wholenumber side lengths in the context of solving realworld and mathematical problems, and represent wholenumber products as rectangular areas in mathematical reasoning 
Florida  Benchmarks for Excellent Student Thinking:
MA.3.GR.2.1

Explore area as an attribute of a twodimensional figure by covering the figure with unit squares without gaps or overlaps. Find areas of rectangles by counting unit squares. 
Florida  Benchmarks for Excellent Student Thinking:
MA.3.GR.2.2

Find the area of a rectangle with wholenumber side lengths using a visual model and a multiplication formula 
Florida  Benchmarks for Excellent Student Thinking:
MA.3.GR.2.3

Solve mathematical and realworld problems involving the perimeter and area of rectangles with wholenumber side lengths using a visual model and a formula. 
Florida  Benchmarks for Excellent Student Thinking:
MA.3.GR.2.4

Solve mathematical and realworld problems involving the perimeter and area of composite figures composed of nonoverlapping rectangles with wholenumber side lengths. 
Georgia Standards of Excellence (GSE):
3.GSR.7.1

Investigate area by covering the
space of rectangles presented in
realistic situations using multiple
copies of the same unit, with no gaps or overlaps, and determine
the total area (total number of
units that covered the space). 
Georgia Standards of Excellence (GSE):
3.GSR.7.2

Determine the area of rectangles
(or shapes composed of
rectangles) presented in relevant
problems by tiling and counting. 
Georgia Standards of Excellence (GSE):
3.GSR.7.3

Discover and explain how area
can be found by multiplying the
dimensions of a rectangle. 
