Create and Interpret Scaled Graphs - 3rd Grade Math
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Identify the correct total: key $1$ square $=$ $5$; category bars are $3$, $4$, and $5$ squares. Total items?
Identify the correct total: key $1$ square $=$ $5$; category bars are $3$, $4$, and $5$ squares. Total items?
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$60$. $(3+4+5) \times 5 = 12 \times 5 = 60$ total items.
$60$. $(3+4+5) \times 5 = 12 \times 5 = 60$ total items.
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Which graph part tells how many items each symbol or square represents?
Which graph part tells how many items each symbol or square represents?
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The key (scale). The key explains what each symbol or unit equals.
The key (scale). The key explains what each symbol or unit equals.
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Find and correct the mistake: A student says $5$ squares with key $1$ square $=$ $6$ equals $11$ items. What is correct?
Find and correct the mistake: A student says $5$ squares with key $1$ square $=$ $6$ equals $11$ items. What is correct?
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Correct total is $30$ items. Student added instead of multiplying; $5 \times 6 = 30$.
Correct total is $30$ items. Student added instead of multiplying; $5 \times 6 = 30$.
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What must every scaled bar graph include to be interpreted correctly?
What must every scaled bar graph include to be interpreted correctly?
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A title, labeled categories, and a scale on the axis. These elements make the graph readable and interpretable.
A title, labeled categories, and a scale on the axis. These elements make the graph readable and interpretable.
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Solve the two-step question: A $9$ squares, B $5$ squares, C $4$ squares; key $1$ square $=$ $3$. How many more items in A than B and C together?
Solve the two-step question: A $9$ squares, B $5$ squares, C $4$ squares; key $1$ square $=$ $3$. How many more items in A than B and C together?
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$0$ items (they are equal). A: $9 \times 3 = 27$; B+C: $(5+4) \times 3 = 27$; $27-27 = 0$.
$0$ items (they are equal). A: $9 \times 3 = 27$; B+C: $(5+4) \times 3 = 27$; $27-27 = 0$.
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Find how many less: Apples $7$ squares, Oranges $9$ squares, key $1$ square $=$ $5$ fruits.
Find how many less: Apples $7$ squares, Oranges $9$ squares, key $1$ square $=$ $5$ fruits.
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$10$ fruits. $(9-7) \times 5 = 2 \times 5 = 10$ fewer fruits.
$10$ fruits. $(9-7) \times 5 = 2 \times 5 = 10$ fewer fruits.
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Find how many more: Cats $8$ squares, Dogs $5$ squares, key $1$ square $=$ $2$ pets.
Find how many more: Cats $8$ squares, Dogs $5$ squares, key $1$ square $=$ $2$ pets.
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$6$ pets. $(8-5) \times 2 = 3 \times 2 = 6$ more pets.
$6$ pets. $(8-5) \times 2 = 3 \times 2 = 6$ more pets.
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Which operation finds how many more in category $A$ than $B$ on a scaled bar graph?
Which operation finds how many more in category $A$ than $B$ on a scaled bar graph?
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Subtract: $A - B$ (in items). Subtraction finds the difference between categories.
Subtract: $A - B$ (in items). Subtraction finds the difference between categories.
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Which operation finds the total items from a bar with $n$ squares and key $1$ square $=$ $k$?
Which operation finds the total items from a bar with $n$ squares and key $1$ square $=$ $k$?
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Multiply: $n \times k$. Multiplication gives total from squares and scale.
Multiply: $n \times k$. Multiplication gives total from squares and scale.
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What is the missing number of squares for $30$ items if $1$ square $=$ $5$ items?
What is the missing number of squares for $30$ items if $1$ square $=$ $5$ items?
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$6$ squares. Divide total by scale: $30 \div 5 = 6$.
$6$ squares. Divide total by scale: $30 \div 5 = 6$.
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What is the value of $9$ squares if the key is $1$ square $=$ $2$ items?
What is the value of $9$ squares if the key is $1$ square $=$ $2$ items?
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$18$ items. Multiply squares by scale: $9 \times 2 = 18$.
$18$ items. Multiply squares by scale: $9 \times 2 = 18$.
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Identify the correct count: key $1$ symbol $=$ $3$; there are $5$ symbols. How many?
Identify the correct count: key $1$ symbol $=$ $3$; there are $5$ symbols. How many?
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$15$. Multiply symbols by scale: $5 \times 3 = 15$.
$15$. Multiply symbols by scale: $5 \times 3 = 15$.
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Identify the correct count: key $1$ square $=$ $4$; a bar is $6$ squares tall. How many?
Identify the correct count: key $1$ square $=$ $4$; a bar is $6$ squares tall. How many?
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$24$. Multiply squares by scale: $6 \times 4 = 24$.
$24$. Multiply squares by scale: $6 \times 4 = 24$.
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What is a scaled picture graph?
What is a scaled picture graph?
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A picture graph where each symbol stands for more than $1$ item. Scaled means each picture represents multiple items, not just one.
A picture graph where each symbol stands for more than $1$ item. Scaled means each picture represents multiple items, not just one.
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What is a scaled bar graph?
What is a scaled bar graph?
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A bar graph where each unit stands for more than $1$ item. Scaled means each unit represents multiple items, not just one.
A bar graph where each unit stands for more than $1$ item. Scaled means each unit represents multiple items, not just one.
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