Bearings
Starter: Fill in the Blank
Calculate Scaled Measurements
\begin{alignedat}{4}
\_\_&cm : &5&m \\
4&cm : &40&m
\end{alignedat}
\begin{alignedat}{4}
1&cm : &15&m \\
8&cm : &\_\_&m
\end{alignedat}
\begin{alignedat}{4}
1&cm : &3&m \\
\_\_&cm : &9&m
\end{alignedat}
\begin{alignedat}{4}
1&cm : &\_\_&m \\
9&cm : &360&m
\end{alignedat}
1.
2.
3.
4.
Answers: 1. 3cm 2. 40m 3. 8cm 4. 90m
Scale Drawings with Angles: Aim
Understand that measurements in drawings can be calculated when we know the drawing’s angles.
Can construct scale drawings using angles and sides, to measure unknown sides.
Bearings: Aim
Understand that a compass points North, which we can use to navigate by picking different directions.
Can name the main directions and write bearings in 3 digit form.
Scale Drawings with Angles: Understanding Check
Bearings: Understanding Check
Task:
Work on pg 58 exercises 3.1-6 for 20min
... and then we'll look at some aeroplanes! ✈
Bearings
Bearings are used every day to navigate and pilot ships and planes.
This is a
World War 2 Arvo Lancaster Bomber
The Cockpit (compass is in the top centre)
The Cockpit (compass is in the top centre)
WW2 RAF Compass (30° is written as '3' to make it easy to read from far away)
Bearings Rules
1. Start from North
2. Measure Clockwise
3. Write 3 Figures
N = North
E = East
S = South
W = West
NE = North-East
SE = South-East
SW = South-West
NW = North-West
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
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°
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Bearings
By Jay Teach
