Transcript Board 4 - Sirius Academy

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NUMBER
ALGEBRA
3
4
3
4
5
6
5
6
SHAPE
HANDLING
SPACE & M
DATA
3
4
3
4
SHAPE and
SPACE
HANDLING
DATA
SHAPE and
SPACE
HANDLING
DATA
SHAPE and
SPACE
5
6
HANDLING
DATA
SHAPE and
SPACE
HANDLING
DATA
5
6
oC
30o
20o
10o
0o
What is the
temperature in
Oslo?
-10o
Oslo
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Answer
oC
30o
20o
10o
0o
What is the
temperature in
Oslo?
-10o
-5oC
Oslo
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Make a list of all factors of :
24
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Answer
Make a list of all factors of :
24
1, 24, 2, 12, 3, 8, 4, 6
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How would you write the number
below to 1 decimal place?
4.8635
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Answer
How would you write the number
below to 1 decimal place?
4.8635
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Explain?
4.9
How would you write the number
below to 1 decimal place?
4.8635
5 or bigger ?
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4.9
 So round up
Simon and Jenny share the bar of
chocolate in the ratio 3 : 4. How many
pieces do they each receive?
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Answer
Simon and Jenny share the bar of
chocolate in the ratio 3 : 4. How many
pieces do they each receive?
Simon gets 9 pieces
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Jenny gets 12 pieces
Explain?
Simon and Jenny share the bar of
chocolate in the ratio 3 : 4. How many
pieces do they each receive?
21
pieces
3+4
= 7 parts
Simon gets 3 of 21 = 9
7
(3 parts out of 7)
Simon gets 9 pieces
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Jenny gets
4
of 21 = 12
7
(4 parts out of 7)
Jenny gets 12 pieces
How many metal strips would there
be in the next diagram?
1
2
3
4
?
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Answer
How many metal strips would there
be in the next diagram?
1
3
2
4
?
9
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Explain?
How many metal strips would there
be in the next diagram?
1
3
2
4
?
3
5
7
Add 2 each time.
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9
A formula for converting temperatures in degrees
Celsius (oC) to degrees Fahrenheit (oF) is
multiple by 9, divide by 5 and add 32. Change
the temperature shown to oF.
10oC
x9
5
? oF
+ 32
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Answer
A formula for converting temperatures in degrees
Celsius (oC) to degrees Fahrenheit (oF) is
multiple by 9, divide by 5 and add 32. Change
the temperature shown to oF.
10oC
x9
5
50
?ooFF
+ 32
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How many small cubes would there
be in the next diagram?
?
1
Back to board
8
27
Answer
How many small cubes would there
be in the next diagram?
?
1
8
27
64
Back to board
Explain?
How many small cubes would there
be in the next diagram?
?
1
8
27
These are cube numbers.
13 = 1, 23 = 8, 33 = 27, 43 = 64
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64
The graph of y = 3x - 1 is to be drawn.
Calculate the y values for each x value shown.
y = 3x - 1
x
-3
-2
-1
0
1
2
3
y
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Answer
The graph of y = 3x - 1 is to be drawn.
Calculate the y values for each x value shown.
y = 3x - 1
x
-3
-2
-1
0
1
2
3
y
-10 -7
-4
-1
2
5
8
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How many lines of symmetry
does the shape below have?
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Answer
How many lines of symmetry
does the shape below have?
4
Back to board
Explain?
How many lines of symmetry
does the shape below have?
4
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Decide the type of angle in each case.
A
B
Acute
D
Right
Obtuse
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C
E
Straight
Reflex
Answer
Decide the type of angle in each case.
A
B
Acute
C
Right
Obtuse
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D
Straight
Reflex
Explain?
E
Decide the type of angle in each case.
A
B
Acute
C
D
Right
Obtuse
E
Straight
Reflex
acute angle < 900
right angle = 900
900 < obtuse angle < 1800 straight angle = 180o
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1800 < reflex angle < 360o
Calculate angle a giving a reason
for your answer.
480
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a
Answer
Calculate angle a giving a reason
for your answer.
132o
480
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a
Explain?
Calculate angle a giving a reason
for your answer.
132o
480
a
1800 - 48o = 132o
Angles on a straight line add to 1800
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Calculate the approximate circumference C,
of the table top by taking a value of  = 3.
50 cm
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Answer
Calculate the approximate circumference C,
of the table top by taking a value of  = 3.
50 cm
C = 300 cm
Back to board
Explain?
Calculate the approximate circumference C,
of the table top by taking a value of  = 3.
50 cm
C = 2r
C = 2 x 3 x 50
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C = 300 cm
The table shows the results of a survey about
favourite TV channels undertaken by 80 adults.
How many adults preferred watching ITV?
BBC 1
ITV
CH 4
Male
8
5
7
Female
12
28
20
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Answer
The table shows the results of a survey about
favourite TV channels undertaken by 80 adults.
How many adults preferred watching ITV?
BBC 1
ITV
CH 4
Male
8
5
7
Female
12
28
20
33
Back to board
Explain?
The table shows the results of a survey about
favourite TV channels undertaken by 80 adults.
How many adults preferred watching ITV?
BBC 1
ITV
CH 4
Male
8
5
7
Female
12
28
20
5 + 28 = 33
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33
Temperature oC
The line graph shows the maximum outside
temperature as recorded by a gardener for 5
consecutive days in January.
What was the
10
difference in
8
temperature
between Monday
6
and Thursday?
4
2
0
Mon
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Tue
Wed
Thu
Fri
Answer
Temperature oC
The line graph shows the maximum outside
temperature as recorded by a gardener for 5
consecutive days in January.
What was the
10
difference in
8
temperature
between Monday
6
and Thursday?
4
3oC
2
0
Mon
Back to board
Tue
Wed
Thu
Explain?
Fri
Temperature oC
The line graph shows the maximum outside
temperature as recorded by a gardener for 5
consecutive days in January.
What was the
10
difference in
8
temperature
between Monday
6
and Thursday?
4
4oC
2
0
Mon
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3oC
1oC
Tue
Wed
Thu
Fri
4o - 1o = 3o
Use the conversion graph to convert
80 miles to km.
Kilometres (km)
160
140
120
100
80
60
40
20
0
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10 20 30 40 50 60 70 80 90 100
Miles
Answer
Use the conversion graph to convert
80 miles to km.
Kilometres (km)
160
140
120
128 km
100
80
60
40
20
0
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10 20 30 40 50 60 70 80 90 100
Miles
Explain?
Use the conversion graph to convert
80 miles to km.
Kilometres (km)
160
140
120
128 km
100
80
60
40
20
0
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10 20 30 40 50 60 70 80 90 100
Miles
Number of Visitors
The scatter graph shows information on the number
of daily visitors to a museum last summer.
500
450
400
350
300
250
200
150
100
0
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(a) On how many
days were
visitor numbers
recorded?
(b) What type of
correlation is
1 2 3 4 5 6 7 8 9 10
shown?
Hours of Sunshine
Answer
Number of Visitors
The scatter graph shows information on the number
of daily visitors to a museum last summer.
500
450
400
350
(a)10
(b) negative
300
250
200
150
100
0
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(a) On how many
days were
visitor numbers
recorded?
(b) What type of
correlation is
1 2 3 4 5 6 7 8 9 10
shown?
Hours of Sunshine
Explain?
Number of Visitors
The scatter graph shows information on the number
of daily visitors to a museum last summer.
500
450
400
350
300
250
200
150
100
0
(a)10
(b) negative
(a) On how many
days were
visitor numbers
recorded?
(b) What type of
correlation is
1 2 3 4 5 6 7 8 9 10
shown?
Hours of Sunshine
As one quantity increases (sunshine), the
other quantity decreases (visitors) so there
is a negative correlation between the data.
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