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Coordinates

Coordinates. Check for Success Along then up Remember comma (and brackets). ( ). ,. 6 4. 8. y. 6. 4. Up Stairs. 2. Along Corridor. x. 0. 2. 4. 6. 8. 10. The Test of Success. What is to be learned?. Check for success Along then up Remember comma (and brackets).

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Coordinates

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  1. Coordinates Check for Success Along then up Remember comma (and brackets) ( ) , 6 4 8 y 6 4 Up Stairs 2 Along Corridor x 0 2 4 6 8 10

  2. The Test of Success What is to be learned? Check for success Along then up Remember comma (and brackets) How to read coordinates of a point 8 y ( ) , A 2 5 A 6 B (8 , 1) 4 B 2 x 0 2 4 6 8 10

  3. Coordinates With Negatives Check for Success x then y x is across ( a cross) y is up ( wise up!) (-3 , -2)

  4. The Test of Success What is to be learned? Check for success x then y How to read coordinates of points with negatives (-5 , 2) A A (4 , -3) B B

  5. Calculating Real Distance Steps to success Measure Multiply by scale Check new units 3cm 3 X 10 = 30 m scale 1cm = 10m

  6. The Test of Success What is to be learned? Steps to success Measure Multiply by scale Check new units How to use scale to calculate real distances scale 1cm = 100m m* 3 X 100 = 300 3cm *actually 324m

  7. Making a Scale Drawing Steps to success Choose a scale Divide by scale Draw lines carefully scale 1cm = 10m 11cm 110 ÷ 10 = 11 8cm 110m 80m 80 ÷ 10 = 8

  8. The Test of Success What is to be learned? Steps to success Choose a scale Divide by scale Draw lines carefully How to show real distances in a scale drawing Hightoon Lowtoon 35miles scale 1cm = 5miles 35 ÷ 5 = 7 H L 7cm

  9. Enlargement/Reduction Steps to Success Multiply all lines by Scale Factor Leave tricky lines till last Scale Factor 2 6 3 4 8 Original Enlargement

  10. The Test of Success Steps to success What is to be learned? Multiply all lines by Scale Factor How to enlarge (and reduce) shapes mathematically Leave tricky lines till last Scale Factor = ½ 8 4 2 1 4 2 Original Reduction

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