stretching & shrinking 1.1 & intro 1.2
Post on 04-Jul-2015
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Ag e n d a . 6 , 2 0 1 0D e c
H o m e w o r k c h e c k
1 2 . 1 2 # 1 , 2 , 1 0 , 1 2 , 1 4 - 1 6h o m e w o r k S & S p
In t r o d u c t io n t o u n it
1 .1P r o b le m
- R u b b e r b a n d a c t iv it y w it h c o m p u t e r s m a y b e
D a ily S c r ib e.M o n .Tu e s .We d . Th u r s
.F r i
8
9
area
perimeter
P
Log on to students
Go to:·my computer·PMS 7th Grade Common ·Favazza·Geometer's Sketchpad·Rubberband (the one with the yellow shapes icon)
Similar figures
What stays the same? What changes?
. star5 trianglessame basic
shape
2 times the size
image side lengthsare about 2 timeslonger than original.
area of image isfour times the areaof the original
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