welcome to cahsee
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WELCOME TO CAHSEE. Week Four. NOTES- any slide with a green title should be written down in your notebook. Lesson #7- Measurement and Geometry 2.1. Perimeter, Area, Volume(10 mins ). Perimeter- the distance around the object. Area- the inside of a 2-D shape. - PowerPoint PPT PresentationTRANSCRIPT
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WELCOME TO CAHSEE
Week Four
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NOTES- any slide with a green title should be written down in your notebook.
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Lesson #7- Measurement and Geometry
2.1
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Perimeter, Area, Volume(10 mins)
• Perimeter- the distance around the object.
• Area- the inside of a 2-D shape.
• Volume- if you filled a 3-D shape.
• Surface Area- the covering of a 3-D shape.
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18 feet
10 feet
Perimeter = side + side + side + side = 10.5 ft + 18 ft + 10.5 ft + 18 ft = 57 feet
Perimeter
18 feet
10 feet
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Area = A= *h 2
𝒃𝟏
𝒃𝟐
h
12 cm
8 cm
6 cm
h = 6cm, a = 8 cm, b = 12 cmA = (8 cm + 12 cm) x 6 2
= 20 cm x 6 2 10 x 6
= 60 cm2
The area of a Trapezoid
Length of side
Length of side
height
7 cm
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6 in
3 in
Volume of a CylinderA=
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Area of base = 3.14 x (3x3) x 6= 28.26 in2
28.26 x 6 = 169.56 in3
6 in
3 in
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Surface Area- Rectangular PrismSA= 2lw+ 2lh+ 2wh
294
244030
)12(2)20(2)15(2
)4)(3(2)4)(5(2)3)(5(2
222
unitsSA
SA
SA
SA
whlhlwSA
53
4
Length = 5Width = 3Height = 4
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Bootcamp Practice (15 mins)
Pages 85-86 you may not write on. Copy the questions into your composition notebook and solve.
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Bootcamp PracticeRaise your hand if you need any help
Ask questions NOW, the Cahsee will be too late!
*Teacher will determine grouping (independent, pairs, etc.)
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CHECK YOUR WORK- 2 mins Page 85
Problem # Answer
1 64 square units2 41cm 3 602.88 4 158
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CHECK YOUR WORK Page 86
Problem # Answer
1 V= 75.36 2 A= 50.24 3 SA= 262 4 P= 30cm5 A= 138 square units6 A= 24 7 V= 120 8 P= 24ft
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Lesson #8- Measurement and Geometry
2.2
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Composite Figures- 8 mins
Two or more shapes formed together.
In order to solve: 1) Separate the shapes2) Find the area of each3) Add/ Subtract them
together.
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Composite Figure4 yd
6 yd
10yd
10yd
8 yd
2 yd
#1
#2
#1 A= l xw A= 8 X 4A= 32
#2 A= l xw A= 10 X 2A= 20
32 +20=A= 52
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Shaded region only
#1
#2
#1 A= l xw A= 3 x 3.4A= 10.2
#2 A= l xw A= 7.3 x 5.8A= 42.34
42.34 -10.2 =A= 32.14
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Bootcamp Practice (10 mins)
Pages 87- 88- you may write on.
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CHECK YOUR WORK- 2 mins Page 87
Problem # Answer
1 A= 608 2 A= 448
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CHECK YOUR WORK- 3 mins Page 88
Problem # Answer
1 A= 1692 2 A= 300 3 A= 109 4 A= 210 5 A= 96
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Bootcamp PracticeRaise your hand if you need any help
Ask questions NOW, the Cahsee will be too late!
*Teacher will determine grouping (independent, pairs, etc.)
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Turn in all handouts that you couldn’t write on, the ones that you did write on, you may keep those to study.
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Exit Slip: (10 mins)
Get your assigned computer/ close notebook
Log-on/ www.achievedata.com/zoom/test
Use the test key from the CAHSEE BOOTCAMP file cabinet under Mrs. Kelley’s page
Exit Slip Name- CB Math Week Four Exit Slip (6 questions)
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Time to Switch (1 minute stretch break before we start the next subject)
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Reminders: (1 min)Sign in LaptopsBootcamp next Saturday Study over your notes nightly
Room must be left spotless (no trash, chairs on desks, I will check your desk before dismissal)