Upload
elita
View
68
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Bearings. Learning Intentions To understand what a bearing is To be able to work out and measure bearings . Success Criteria - By your next lesson To be able to explain what a bearing is and why we use them. To be able to say what the 3 key points are. Estimating Angles. - PowerPoint PPT Presentation
Citation preview
BearingsLearning Intentions1.To understand what a bearing is2.To be able to work out and measure bearings
Success Criteria - By your next lesson 1. To be able to explain what a bearing is and why we use
them.2. To be able to say what the 3 key points are.
The Rules of the game!An angle will appear on the screen, your job
isto estimate the size of the angle. The winner
is the person who gets the most points.• All angles are a multiple of 5.• If you guess the angle exactly right give
yourself 3 points.• If you are 5° out give yourself 2 point.• If you are 10° out give yourself 1 point.• You will have 30 seconds to guess – then
the answer will come up.
Hint
10° - 1 point15° - 2 points20° - 3 points25° - 2 points30° - 1 point
THE PO
INTS
140° - 1 point145° - 2 points150° - 3 points155° - 2 points160° - 1 point
THE PO
INTS
125° - 1 point130° - 2 points135° - 3 points140° - 2 points145° - 1 point
THE PO
INTS
60° - 1 point65° - 2 points70° - 3 points75° - 2 points80° - 1 point
THE PO
INTS
90° - 1 point95° - 2 points100° - 3 points105° - 2 points110° - 1 point
THE PO
INTS
TOTAL UP YOUR POINTS
BEARINGSWHAT’S THE
POINT?
Compass points
N
EW
S
NE
SESW
NW
000°
045°
090°
135°
180°
225°
270°
315°
360°
Bearings – The Key Points
1)Bearings are a measure of direction taken from North.2)Bearings are always measured in a clockwise direction3)Bearings are always written in 3 figures.
from North.clockwise
3 figures
Example 1: What is the compass direction from Belfast to Omagh? ……………………What is the bearing from Belfast to Omagh? ……………………
North
Omagh Belfast
from Belfast West 270°
Example 2: What is the rough compass direction from Omagh to Newry? ……………………What is the bearing from Omagh to Newry? ……………………
North
Omagh
Newry
from Omagh South East125°
Example 3: What is the rough compass direction from Omagh to Sligo? ……………………What is the bearing from Omagh to Sligo? ……………………
NorthSligo
from Omagh South West 245°
(1a) Measure the bearing of B from A
(1b) Measure the bearing of A from B
(b) Measure the bearing of A from B
(2a) Measure the bearing of D from C
(2b) Measure the bearing of C from D
(b) Measure the bearing of A from B
° A
° B
° D
° C
045°
225°
145°
325°
Question 3(a)Measure the bearing from Banbury to Catford = ……………..°(b)Measure the bearing from Catford to Art = ……………..°(c) Measure the bearing from Banbury to Art = ……………..°(d)Measure the bearing from Art to Banbury = ……………..°
(b) Measure the bearing of A from B
° Art
° Banbury
° Catford
130° 270° 238° 59°
Question 4North
E
J M
OD
Y
G
T
Q
N
W
Measure the bearings of the following
E = …………°N= …………°J = …………°O = …………°Y = …………°
Which letter is on bearing of 072 ° = ………050 ° = ………320 ° = ………243 ° = ………
50° 310° 280° 220° 290°
MENT
PlenaryFlight EZY551 projected flight to Quebec is shown.But the flight hits problems with the volcanic ash from Iceland and is diverted to Prince Edward Island – what is the new bearing.
Tick or TrashFlight EZY551 projected flight to Quebec is shown.But the flight hits problems with the volcanic ash from Iceland and is diverted to Prince Edward Island – what is the new bearing.
• Clockwise from the plane to Prince Edward Island I have measured the angle and it is 115°
• Bearing =115°
• Angle is marked on the diagram and is 245°
Learning Intentions
1.To understand what a bearing is
2. To be able to work out and measure bearings