Vocabulary
a rate to compare per 1 unit
Example: 5 miles per 1 hour
Vocab words to use: proportional relationship, unit rate, scale, ratio, reciprocal
Unit rate
K stands for ______ of proportionality.
constant
K=4
x=1, 2, 3, 4
y=4, 8, 12, ___
16
Find the Unit Rate (unit rate means divide)
12 flowers in 3 vases
Answer: ___ flowers/vase
4
How often is Labor Day celebrated in a year?
every day, once a year, once a week, once a month
once a year
ratio between two sets of measurements (use a smaller measurement to compare it to something in real life like a basketball court)
Vocab words to use: proportional relationship, unit rate, scale or scale drawing, ratio, reciprocal
Scale or Scale Drawing
The equation for a proportional relationship is___
y=kx
K=8
x=1, 2, 3, 4
y=8, 16, ___, 32
24
Find the Unit Rate (unit rate means divide)
38 kilometers per two hours
Answer: ___ ki/hour
19
What month is Labor Day celebrated in?
September
When you Keep, Change, Flip
What is the Flip part, you are finding the r___.
Vocab words to use: proportional relationship, unit rate, scale or scale drawing, ratio, reciprocal
reciprocal
What equation do you use to find K? (Hint, x and y)
k=y/x
K=5
x= 2, 5, 6, 7
y= __, 25, 30, 35
10
Are these equivalent ratios?
4/6 and 2/3
(think butterfly method)
Yes
On what day of the week is Labor Day celebrated on?
Monday
comparison of two quantities by division
Vocab words to use: proportional relationship, unit rate, scale or scale drawing, ratio, reciprocal
Ratio
What is the constant (K)
x= 1, 2, 3, 4, 5
y= 8, 16, 24, 32, 40
K=8
K=? Remember: k= y/x
x=2, 4, 5, 9
y=8, 16, 20, 36
4
Are these equivalent ratios?
4/3 and 6/5
(think butterfly method)
No
In majority of US schools, when is the start of school?
July, August, after Labor Day, after Thanksgiving
after Labor Day
a relationship that has a constant
Vocab words to use: proportional relationship, unit rate, scale or scale drawing, ratio, reciprocal
Proportional Relationship
What is the constant (K)
x= 63, 147, 189
y= 3, 7, 9
K=1/21
K=1/4
x= 4,__, 12, 16
y=1, 2, 3, 4
8
Make these ratios equivalent. (kind of like butterfly method, but add the extra step where you have to divide)
4/20 and 5/x
Figure out the missing number x.
x=25
Which city hosted the first Labor Day parade?
New York City, Rockford, Chicago, Sacramento
New York City