9Ma3
Bearings
Monday 9 May
Do Now
What are the 3 rules of bearings?
Always draw and measure bearings clockwise.
Always draw and measure bearings anticlockwise.
Always express your answers as three-figure bearings (so 60 ° would be 060 °)
Always grease your ball bearings
Bearings are positive if they are the East side of the North South divide & negative if to the west side (eg +90º = E , -90º = W)
Always measure bearings from the North line.
Important to know for Bearings: Angles on a straight line
No use at all : Angels on a straight line
How might we solve these?
Ideas:
You Do
Bearing Mastery: 3 rules?
Bearing Mastery: 3 rules
Measure from North
Express as 3 figures
Measure clockwise
Blooket Time
Probing Question
Further Extension
Fluency
Is it always true that a scale model or drawing has exactly the same shape as the original object, and all the same proportions, but a different overall size?
If I am going from a drawing to actual size would I divide or multiply?
What does a scale of 1 : 60 represent?
PLAY
9 Bearings
Daren White
Created on May 8, 2022
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Transcript
9Ma3
Bearings
Monday 9 May
Do Now
What are the 3 rules of bearings?
Always draw and measure bearings clockwise.
Always draw and measure bearings anticlockwise.
Always express your answers as three-figure bearings (so 60 ° would be 060 °)
Always grease your ball bearings
Bearings are positive if they are the East side of the North South divide & negative if to the west side (eg +90º = E , -90º = W)
Always measure bearings from the North line.
Important to know for Bearings: Angles on a straight line
No use at all : Angels on a straight line
How might we solve these?
Ideas:
You Do
Bearing Mastery: 3 rules?
Bearing Mastery: 3 rules
Measure from North
Express as 3 figures
Measure clockwise
Blooket Time
Probing Question
Further Extension
Fluency
Is it always true that a scale model or drawing has exactly the same shape as the original object, and all the same proportions, but a different overall size?
If I am going from a drawing to actual size would I divide or multiply?
What does a scale of 1 : 60 represent?
PLAY