welcome to prime thinkers
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Welcome to Prime thinkers . WERE GOING TO BE TALKING ABOUT SHAPES . http://econtent.thelearningfederation.edu.au/ec/viewing/L2314/index.html. Bloom's Taxonomy . HOW CAN WE PROVE IT ?. - PowerPoint PPT PresentationTRANSCRIPT
Welcome to Prime thinkers WERE GOING TO BE
TALKING ABOUT SHAPES
http://econtent.thelearningfederation.edu.au/ec/viewing/L2314/index.html
Bloom's Taxonomy
HOW CAN WE PROVE IT ?
Reviewing prior knowledge from Grade 8 (The Australian Curriculum)From Digital Resource: http://www.youtube.com/watch?v=TPL12Tk7L6U&feature=related
People say the Statue of Libertyβs nose is out of proportion. If her arm is 1300cm long, how long should her nose be?
The actual length of the nose is about140.20cm
Scale factor = ππππππ΄ππ‘π’ππ
Length of nose of statue of Liberty = length of typical nose (Length of arm of the Statue of liberty Length of typical arm )
= 4(130060 ) = 4 x 21.66 = 86.66cm is the length of the nose of the statue of liberty.
Compare the ratio of the statue of liberty with your measurements.
π΄ππ‘π’ππ πππ ππ΄ππ‘π’ππ πππ : ππ‘ππ‘π’π ππ ππππππ‘ π¦β² π πππ πππ‘ππ‘π’π ππ πΏπππππ‘ π¦β² π πππ
460 = 115 : 86.661300 = 115
β’ Scale factor =
β’ Expressing a scale factor as:β’ Decimalβ’ Fractionβ’ Percentageβ’ Ratio
From digital resource: http://www.youtube.com/watch?v=wQRs7zBQmww
Lesson 9-5: Similar Solids 8
8
18
4
6
Corresponding ratios are not equal, so the figures are not similar.
Are these solids similar?
Solution:8 2:4 1
18 3:6 1
radius
height
Example:
Lesson 9-5: Similar Solids 9
16
12
8
612
9
All corresponding ratios are equal, so the figures are similar
16 4:12 38 4:6 312 4:9 3
length
width
height
Are these solids similar?
Example:
Solution:
Side length scaled down by a factor of:
Volume scaled down by a factor of:
From digital resource: http://www.slideboom.com/presentations/53232/Surface-Area-and-Volume-of-Similar-Solids
A can( cylinder) has a height equal to its diameter. One can has a height of 5 cm and the other a height of 12cm. How many cans of water from the smaller can are needed to fill the larger can?