welcome t o area 51
DESCRIPTION
Welcome t o AREA 51. Using Student Responders. To respond to a question: Wait for polling to open. Select your response You do not have to turn on your responder, it is ready to go. Welcome to AREA 51. Crop circle image 1. Insert image of a crop circle design. - PowerPoint PPT PresentationTRANSCRIPT
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Welcome to AREA 51
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Using Student Responders
To respond to a question:
Wait for polling to open.
Select your response
You do not have to turn on your responder, it is ready to go.
![Page 3: Welcome t o AREA 51](https://reader035.vdocuments.site/reader035/viewer/2022062222/568149e9550346895db715d5/html5/thumbnails/3.jpg)
Welcome to AREA 51
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Crop circle image 1
Insert image of a crop circle design.Example: http://science.howstuffworks.com/science-vs-myth/unexplained-phenomena/crop-circle.htm
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Example crop circles can be foundathttp://www.stonehenge-stone-circle.co.uk/crop-circles.htm
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Crop circle example can be found athttp://www.ufo-reports.com/crop-circles.html
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Real Crop circles tour Google Earth
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Crop circle image 3
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Crop circle image 4
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Crop circle image 5
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Crop circle image 6
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Crop circle image 7
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Why Circles?
They are co
ol ...
Farm
ers are
ab...
Crops g
row bet..
.
Crops a
re w
ate...
25% 25%25%25%
1. They are cool to look at.
2. Farmers are able to plant more crops.
3. Crops grow better in circle plots.
4. Crops are watered more efficiently.
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Crop circle with radius1
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Center pivot 2
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Center pivot 1
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Why Use Center Pivot Systems?
PROS (advantages)
CONS(disadvantages)
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Why so close?
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Why so far apart?
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Why So Close?
Farm
ers want t
...
We have plenty...
It is
easier f
...
It is
easier t
...
25% 25%25%25%1. Farmers want to
make the most of limited space.
2. We have plenty of land
3. It is easier for farmers.
4. It is easier to construct the irrigation system
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Crop circle with radius2
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What is Area?
The distance
a...
The amount of ..
.
The amount of ..
.
The sum of t
he...
25% 25%25%25%1. The distance around a shape.
2. The amount of 2-D space inside a boundary.
3. The amount of 3-D dimensional space an object occupies.
4. The sum of the sides of a shape.
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An Area Answer Tells Us . . .
How m
any squar..
.
How m
any cubic.
..
How m
any units...
33% 33%33%1. How many square units are in a 2-D space.
2. How many cubic units are in a 3-D space.
3. How many units are in a line.
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Area fill-in1
1 square = 1 square meter
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Area fill-in1
AREA:
AREA:
AREA:
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Area of a Parallelogram?
Side+Sid
e+Side...
Length
/Width
25% 25%25%25%1. Base●Height2. Side+Side+Side+Side3. Length÷Width4. ½ (Base●Height)
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Rectangle
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Calculating Square Units
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Parallelogram
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Same 2 Dimensions
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Rearranging Sections
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Same Area as Rectangle
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Formula chart
Base •Height
bh
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Area of a Triangle?
base•h
eight
base
•height
2•base•height
base
•height
25% 25%25%25%
31
A. base•heightB. base•heightC. 2•base•heightD. base•height2
1
31
21
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Why is a Triangle’s Area ½ Base x Height?
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Formula chart
½Base • Height (½ bh)
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Area of a Circle?1
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Area of a Circle?1
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Area of a Circle?2
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Area of a Circle?3
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Area of a Circle?4
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Area of a Circle?5
RED: Half the circumference = Length
ORANGE: Radius = Width
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Area of a Circle?
𝜋 • r • r=
𝜋r2 2𝜋r 𝜋r
2𝜋r • r =
2𝜋r2
25% 25%25%25%A. • r • r= r2
B. 2rC. rD. 2r • r = 2r2
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RED: Half the circumference = Length
ORANGE: Radius = Width
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Formula chart
𝝅 𝒓𝟐
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How Much Land is Wasted?
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Wasted Land Calculations
Area of Farm Sum of the Circle’s Areas
LandNOTUsed
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Percent of Farm NOT Used
Farm Area2.70 km2
Farm NOT Used.91 km2
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33.7% Farm Not Used
Farm Area2.70 km2
Farm NOT Used.91 km2
.91÷ 2.70= .337 ● 100=
33.7%
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Did the Farmer Maximize His Land?
Gre
at job!
He did oka
y, c...
Horri
ble job.
33% 33%33%1. Great job!2. He did okay, could
have been better.3. Horrible job.
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Find the Area of Your Plot?
Each half inch = 2 meters
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Complete Your Design Chart
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Find the Area of Your Plot?
And the area is…
And the area is…
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Circle systems
10 meters
6 m
eter
s
4 m
eter
s
8 meters
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What’s Your Design?
Utilize as much land area as possible.
Circles must stay in your boundaries and not overlap.
Label your work
Be creative with your circles and pattern.
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Circle areas
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10
met
ers
8 m
eter
s
What’s Your Design?
6 m
eter
s
4 m
eter
s
Utilize as much land area as possible.Circles must stay in your boundaries and may not overlap.Label your work and record answers in your table.Be creative with your circles and pattern.
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Percentage of Land Not Used?Results % Land Used % Land NOT Used
Our Farmer 66.3% 33.7%
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One Final Task
51
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Msic logo
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How Much Does it Cost?
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How Much Does it Cost?
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Land Not Used vs. Cost