SWBAT review probability, ratios, and geometry skills
Lake Lugo continued- San Jose’s local nature club is carrying out a survey of the number of
ducklings in each family of ducks in Lake Lugo.
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Question 1
1.
What is the mode of the data set?
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Question 2
2.
Based on the nature club’s data, what is the probability that
the next family of ducks they see has exactly 6 ducklings?
Give your answer as a percent.
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Question 3
3.
What is the estimated probability of a random family of ducks having at least 8 ducklings?
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Question 4
4.
Researchers believe that there are about 500 families of ducks living
in the area around Lake Lugo. Based on the club data, about how many of those families will have 9 ducklings?
Let’s Paint a Room
Your friend Sam wants to paint her room. She wants to paint
the ceiling white and the four walls purple. You are helping Sam
determine the cost and the amount of time needed to paint her room.
The room is shaped like a rectangular prism with a height of 8 feet,
length of 12 feet, and width of 10 feet as shown.
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Question 5
5.
What is the area, in square feet, of the ceiling?
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Question 6
6.
Sam needs to figure out how much paint to buy. Calculate
for her the total area, in square feet, of the four walls. She will
not paint the doors or windows.
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Question 7
7.
Part way through painting her room, Sam runs out of paint. She
estimates that there are about 125 square feet left to paint.
The purple paint that Sam is using is only available in 1-quart cans.
Each can of paint covers 40 square feet. How many cans of paint does Sam need to buy to finish painting her room? Explain why.
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Question 8
8.
You decide to paint your room, too. Your room has 300 square feet of wall space to paint. Sam says it took her 10 minutes to paint 25 square feet. At this rate, how many hours would it take Sam to paint your room?
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Question 9
9.
Sam and you are going to paint your room together. Sam takes
10 minutes to paint 25 square feet. It takes you 5 minutes to paint 25 square feet. Sam says, “If we paint together, then it will take 15 minutes for us to cover 50 square feet.”
Give an explanation to convince Sam that she is incorrect.
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Question 10
10.
EXIT TICKET
a) What is the scale factor for the bottom side of Figure A to Figure B?
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Question 11
11.
What is the area of Figure A?
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Question 12
12.
An interior designer is planning to use a pattern using an array of Triangle B's in a piece of wall art. The designer has an area of 37.5 units^2 to work with. How many triangles will they be able to fit into the space.