Area
What is the difference between area formula of a parallelogram and the area formula of a triangle?
Parallelogram A=bh
Triangle A=bh divided by 2
Christian has a collection of 18 shark teeth. He identified them as 6 tiger shark teeth, 8 sand shark teeth, and the rest as bull shark teeth.
What does the ratio 6 : 8 represent in this situation?
There are 6 tiger shark teeth for every 8 sand shark teeth.
The first week of January, there are
49 dogs and 28 cats in an animal shelter.
Throughout the month, the ratio of dogs
to cats remains the same. The last week
of January, there are 20 cats in the
shelter. How many dogs are there?
35 dogs.
What is 20% of 60
12
What is the difference between perimeter and area?
Perimeter is the total distance around the outside of a two-dimensional shape, measured in linear units (like feet or meters), while area is the amount of surface inside that shape, measured in square units (like square feet or square meters).
What is the relationship between the base and the height of a shape?
base and height are perpendicular and are connected at a 90 degree angle.
Ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are 3 tennis rackets. Draw a model to show the ratio of tennis balls to tennis rackets.
Answers vary.
Josie is training for a race. The ratio of
the number of minutes she runs to the
number of miles she runs is 24 to 3.
She plans to run 10 miles. How many
minutes will it take her?
80 minutes
Jacques’s journal is 300 pages long. He uses 10% of the pages in his journal. How many pages does Jacques use in his journal?
30 pages long.
What are the two ways to write the area of a triangle?
bh/2
1/2bh
Find the missing measurement.
base = 6 cm
area = 42 cm2
height = __________
7 cm
Ms. Jenkins puts fish in a pond. For every 6 bluegill fish she puts in the pond, she puts in 1 rock bass fish. Does this ratio mean that Ms. Jenkins puts exactly
6 bluegill fish into the pond? Explain your reasoning.
No, 6 is part of the ratio, not total.
Fred combines peaches and cherries to
make a fruit salad. The ratio of cups of
peaches to cups of cherries is 2 to 3.
How many cups of peaches will Fred
need to make 60 cups of fruit salad?
24 cups of peaches
Justin needs to make 80 illustrations for an art book. He has made 40% of the
illustrations. How many illustrations does
he still need to make?
48 illustrations
What are the different ways to write a ratio?
HINT: there are 3
:
to
fraction
Find the missing measurement.
base = 3.5 in.
area = 14 in.2
height = __________
4 in
Christian has a collection of 18 shark teeth. He identified them as 6 tiger shark teeth, 8 sand shark teeth, and the rest as bull shark teeth.
What does the ratio 4 : 18 represent in this situation?
4 bull shark teeth to total.
A florist uses 225 branches of winterberry to make 75 wreaths. Based on this ratio, how many branches of winterberry does the florist use for 25 wreaths?
75 branches
In a classroom of 28 students, 75% of the students have met their reading goal. How many students met their reading goal?
21 students met their reading goal.
What does the icecream party on December 18 have to do with the benchmark?
All 6th grade students who pass the math benchmark, get to participate in a ice-cream party!
A kitchen wall tile is shaped like a parallelogram. The base of the tile is two times
the height of the tile. The height of the tile is 2.5 in. The length of the other side of
the tile is 3 in. What is the area of the tile?
A 7.5 in.2 B 8 in.2
C 12.5 in.2 D 15 in.2
C 12.5 in.2
Myra’s flower bed has three types of flowers. There are 7 lilies, 5 tulips, and 6 zinnias.
What does the ratio 5 : 13 represent in this situation?
5 tulips to the total of lilies and zinnias.
A chef planning for a large banquet
thinks that 2 out of every 5 dinner
guests will order his soup appetizer.
He expects 800 guests at the banquet.
Use equivalent ratios to estimate how
many cups of soup he should prepare.
320 cups of soup.
Of the 600 students at Melville Middle School, 80% want more field trips. How many students want more field trips?
480 students
What is a ratio?
A ratio shows the relationship between two or more numbers, indicating how many times one value contains another.