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Materials DE Marker 15 Small White Boards Reminders. Musical Math. Use similar triangles to find the length of side x:. 150. 6. 7.5. 10. x. Get out your agenda if you see your name below. You need to come to my room tomorrow. Cornell Notes. Topic:. Stretching and Shrinking:
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Materials DE Marker 15 Small White Boards Reminders
Musical Math Use similar triangles to find the length of side x: 150 6 7.5 10 x
Get out your agenda if you see your name below. You need to come to my room tomorrow.
Cornell Notes Topic: Stretching and Shrinking: Scale and Scale Factor Essential Question(s): How do I determine scale and scale factor between models and reality?
Questions: Notes: Cornell Notes What does scale mean? Scale – the ratio of a length on a drawing or model to the length of an actual object Note: a Scale can have different units Example:
Questions: Notes: Cornell Notes What does scale factor mean? Scale Factor – gives how many TIMES larger or smaller an object is Note: a Scale Factor must have the same units and can be written using a colon (ex. 1:23,000) Example: 1:16,000,000 1:1,300,000
Questions: Notes: Cornell Notes How do I write scale? Example: A map shows 2 inches = 6 feet Write this as a ratio: = Simplify so that the numerator has a length of one.
Questions: Notes: Cornell Notes How do I determine scale factor? Make sure both amounts are using the SAME UNITS. 1 inch on a map = 10 feet in reality Since there at 12 inches in a foot 1 inch = 10(12) inches 1 inch = 120 inches 1:120 The scale factor from the map to reality is 120. THIS MEANS THAT IF WE MULTIPLY A MEASURMENT ON THE MAP BY 120, WE WILL GET THE LENGTH IN THE REAL WORLD.
Class Activity Work on WS 5-8 Practice A with your table partner We will work the problems together Be prepared to share with the class
Homework WS 5-8 Practice A and B AND Cornell Notes Summary