Bearings In Real Life
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Aim:
Understand how to write, read, and use bearings to navigate in real life.
How you'll know that you've been learning today:
Can correctly record bearings, and follow them as instructions in real life navigation.
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Bearings Rules Reminder
1. Start from North
2. Measure Clockwise
3. Write 3 Figures
Starter:
pg60 Ex.4 Q3to4. When finished, paste the cutout of a Compass into jotter.
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Time Goal: 5min
Starter:
Question 4 is more tricky. If you aren’t sure how to do it; try it, raise your hand to tell me, and then move on to pasting-in the compass.
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Time Goal: 5min
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Time Goal: 5min
Algebra for Question 4:
360° = 50° + 310°
360° = 50° + 180° + 130°
50° is that bearing measured counter-clockwise (which is incorrect)
310° is the same bearing, but measured clockwise (which is correct)
This is to prevent us from getting our directions mixed up.
TeeJay 2+ pg60–61 Exercise Answers
1.
a) 180° = S
b) 135° = SE
c) 045° = NE
d) 270° = W
e) 090° = E
f) 225° = SW
g) 315° = NW
h) 000° = N
2.
a) 135° = SE
b) 270° = W
c) 315° = NW
d) 000° = N
e) 180° = S
f) 045° = NE
g) 225° = SW
h) 090° = E
3.
a) 010°
b) 085°
c) 150°
d) 225°
e) 187°
f) 300°
4.
a) 360 - 10 = 310°
b) 360 - 165 = 195°
c) 360 - 8 = 352°
Measuring angles and converting them into bearings:
Complete pg62 Ex.5 Q1 a,b,c,d , and Q4 a,b,c,d
Be careful when the angle is larger than 180°
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Measuring angles and converting them into bearings:
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Measuring angles and converting them into bearings:
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Answers:
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1.
a) 050°
b) 150°
c) 090°
d)165°
2.
a) 315°
b) 260°
c) 205°
d)290°
(these were rounded to the nearest 5°)
Worksheet: Labeling Bearings
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Start and end points are given, you need to construct the ‘North’ lines, then follow the arrow to measure bearing FROM the start TO the end. Apply cardinal direction labels (when appropriate) for N,S,E,W,NE,SE,SW,NW Bonus: Do the same thing but FROM the end TO the start.
If you finish early, do more questions pg 62-63 Ex. 5
Good Behavior expectations for outdoor activity:
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You’re not Geits anymore.
Stay within the area,
don’t run or make lots of noise,
and avoid bumping into people.
This will be a fun activity,
but you still need to behave appropriately.
Outdoor Bearings Activity:
- Orient towards North, and draw a ‘North’ line
- In pairs, accurately chalk a large (1m²) compass rose of N,S,E,W,NE,SE,SW,NW. Then also draw large squares, triangles. Challenge: draw a 6-pointed star
- Work out bearings FROM any <start> TO any <finish>
- Give instructions in your pairs to navigate all the way to a destination. First by only using the compass directions. Then more complicated using exact bearings.
- Extension: use trundle wheels to follow/give instructions about directions AND distances. e.g. 5m N, 5m E, 5m S, 5m W should land back on the same spot.
- Precision Challenge: Starting from the NE corner, travelling 5m W, 2m S, 3m NE, 1M SSE, point to a dot and write your name next to it.
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