Understand Area as Square Units - 3rd Grade Math
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What is the area, in square units, of a figure covered by $1$ unit square with no gaps or overlaps?
What is the area, in square units, of a figure covered by $1$ unit square with no gaps or overlaps?
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$1$ square unit. One unit square covering the figure means the area is $1$ square unit.
$1$ square unit. One unit square covering the figure means the area is $1$ square unit.
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What does it mean if a plane figure can be covered by $n$ unit squares with no gaps or overlaps?
What does it mean if a plane figure can be covered by $n$ unit squares with no gaps or overlaps?
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Its area is $n$ square units. When $n$ unit squares cover a figure completely, the area equals $n$ square units.
Its area is $n$ square units. When $n$ unit squares cover a figure completely, the area equals $n$ square units.
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What does “without overlaps” mean when covering a figure with unit squares?
What does “without overlaps” mean when covering a figure with unit squares?
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No part is covered by more than one square. Each point in the figure is covered by exactly one unit square.
No part is covered by more than one square. Each point in the figure is covered by exactly one unit square.
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Find the area: A rectangle is tiled by $3$ rows of $4$ unit squares with no gaps or overlaps.
Find the area: A rectangle is tiled by $3$ rows of $4$ unit squares with no gaps or overlaps.
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$12$ square units. $3 imes 4 = 12$ unit squares cover the rectangle.
$12$ square units. $3 imes 4 = 12$ unit squares cover the rectangle.
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Find the area: A rectangle is tiled by $2$ rows of $9$ unit squares with no gaps or overlaps.
Find the area: A rectangle is tiled by $2$ rows of $9$ unit squares with no gaps or overlaps.
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$18$ square units. $2 imes 9 = 18$ unit squares cover the rectangle.
$18$ square units. $2 imes 9 = 18$ unit squares cover the rectangle.
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What does “without gaps” mean when covering a figure with unit squares?
What does “without gaps” mean when covering a figure with unit squares?
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No empty spaces are left inside the figure. Every part of the figure must be covered by unit squares.
No empty spaces are left inside the figure. Every part of the figure must be covered by unit squares.
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Identify the area if a figure is exactly covered by $15$ unit squares with no gaps or overlaps.
Identify the area if a figure is exactly covered by $15$ unit squares with no gaps or overlaps.
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$15$ square units. Count the unit squares to find the area in square units.
$15$ square units. Count the unit squares to find the area in square units.
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What is the area of a figure covered by $0$ unit squares?
What is the area of a figure covered by $0$ unit squares?
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$0$ square units. No unit squares means no area covered.
$0$ square units. No unit squares means no area covered.
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Choose the word that completes the definition: Area is measured in square ____.
Choose the word that completes the definition: Area is measured in square ____.
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Units. Area uses square units because it measures two-dimensional space.
Units. Area uses square units because it measures two-dimensional space.
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What must be true about the unit squares when measuring area by covering a figure?
What must be true about the unit squares when measuring area by covering a figure?
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They must not overlap and must not leave gaps. Complete coverage requires no empty spaces and no double coverage.
They must not overlap and must not leave gaps. Complete coverage requires no empty spaces and no double coverage.
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Identify the correct area statement: A figure covered by $12$ unit squares has area $12$ units or $12$ square units?
Identify the correct area statement: A figure covered by $12$ unit squares has area $12$ units or $12$ square units?
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$12$ square units. Area must be expressed in square units, not just units.
$12$ square units. Area must be expressed in square units, not just units.
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What is a unit square?
What is a unit square?
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A square with side length $1$ unit. The basic unit of area measurement with all sides equal to $1$ unit.
A square with side length $1$ unit. The basic unit of area measurement with all sides equal to $1$ unit.
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Which unit is correct for area: square units or units?
Which unit is correct for area: square units or units?
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Square units. Area is always measured in square units, not linear units.
Square units. Area is always measured in square units, not linear units.
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What is the area, in square units, of a figure covered by $7$ unit squares with no gaps or overlaps?
What is the area, in square units, of a figure covered by $7$ unit squares with no gaps or overlaps?
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$7$ square units. The number of unit squares covering the figure equals the area in square units.
$7$ square units. The number of unit squares covering the figure equals the area in square units.
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Identify the area: A shape is tiled by $5$ unit squares in one row and $5$ in a second row, no gaps or overlaps.
Identify the area: A shape is tiled by $5$ unit squares in one row and $5$ in a second row, no gaps or overlaps.
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$10$ square units. $5 + 5 = 10$ unit squares total cover the shape.
$10$ square units. $5 + 5 = 10$ unit squares total cover the shape.
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