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Lesson 4
Lesson 4
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Slide 1:
Slide
Mathematics
Lower Secondary (Key Stage 3)
This lesson contains
44 slides
, with
interactive quizzes
and
text slides
.
Lesson duration is:
50 min
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Lesson 4
Slide 1 - Slide
Starter
Calculate the following expressions
(3 x 8) ÷ 10
(8 x 3) ÷ 5
(6 x 15) ÷ 30
180 ÷ (6 x 15)
(4 x 6) ÷ 3
(9 x 10) ÷ (6 x 5)
(3 x 20)÷(2 x 15)
(14 x 3) ÷ 6
Slide 2 - Slide
Starter
Calculate the following expressions
(3 x 8) ÷ 10
(8 x 3) ÷ 5
(6 x 15) ÷ 30
180 ÷ (6 x 15)
2.4
4.8
3
2
(4 x 6) ÷ 3
(9 x 10) ÷ (6 x 5)
(3 x 20)÷(2 x 15)
(14 x 3) ÷ 6
Slide 3 - Slide
Starter
Calculate the following expressions
(3 x 8) ÷ 10
(8 x 3) ÷ 5
(6 x 15) ÷ 30
180 ÷ (64 x 15)
2.4
4.8
3
2
(4 x 6) ÷ 3
8
(9 x 10) ÷ (6 x 5)
(3 x 20)÷(2 x 15)
2
(14 x 3) ÷ 6
7
3
Slide 4 - Slide
How would you describe a rectangle?
Slide 5 - Open question
Slide 6 - Slide
Select the correct property from the options below for a rectangle.
A
All the sides are equal in length
B
All the sides are parallel
C
Opposite sides are equal in length
D
The perimeter is the sum of the two different lengths
Slide 7 - Quiz
Select the incorrect property from the options below for a rectangle.
A
All the internal angles are ninety degrees
B
Opposite sides are parallel
C
Opposite sides are equal in length
D
The sum of the internal angles is one hundred and eighty degrees
Slide 8 - Quiz
If a rectangle has an area of 12 square units, select the correct list of possible length and height
Slide 9 - Open question
Find all of the factors of 20
A
1, 2, 4, 5, 20
B
2, 4, 5, 10
C
1, 2, 4, 5, 10, 20
D
1, 2, 10, 20
Slide 10 - Quiz
Identify the correct calculation to give a product of 20
A
4 x 10
B
20 ÷ 5
C
5 x 4
D
5 ÷ 4
Slide 11 - Quiz
Slide 12 - Slide
Slide 13 - Slide
Slide 14 - Slide
Current perimeter = ?
Slide 15 - Slide
Current perimeter = 8 + 6 + 8 + 6 = 28m
Slide 16 - Slide
Current perimeter = 8 + 6 + 8 + 6 = 28m
Double means ...?
Slide 17 - Slide
Current perimeter = 8 + 6 + 8 + 6 = 28m
Double means x by 2
Slide 18 - Slide
Current perimeter = 8 + 6 + 8 + 6 = 28m
Double means x by 2
New perimeter = 16 + 12 + 16 + 12 = 56m
Slide 19 - Slide
Current perimeter = 8 + 6 + 8 + 6 = 28m
Double means x by 2
New perimeter = 16 + 12 + 16 + 12 = 56m
56 is double 28 and so the new dimensions are?
Slide 20 - Slide
Current perimeter = 8 + 6 + 8 + 6 = 28m
Double means x by 2
New perimeter = 16 + 12 + 16 + 12 = 56m
56 is double 28 and so the new dimensions are length 16 and height 12
Slide 21 - Slide
Current area = 8 x 6 = 48 square metres
Double means x by 2
New area = 8 x 2 x 6
= (8 x 2) x 6 OR 8 x (2 x 6)
The new dimensions are either l = 16 and h = 6 OR
l = 8 and h = 12
Slide 22 - Slide
Current area = 8 x 6 = ?
Slide 23 - Slide
Current area = 8 x 6 = 48 square metres
Slide 24 - Slide
Current area = 8 x 6 = 48 square metres
Double means x by 2
New area = 8 x 2 x 6
Slide 25 - Slide
Current area = 8 x 6 = 48 square metres
Double means x by 2
New area = 8 x 2 x 6
= (8 x 2) x 6 OR 8 x (2 x 6)
Slide 26 - Slide
Current area = 8 x 6 = 48 square metres
Double means x by 2
New area = 8 x 2 x 6
= (8 x 2) x 6 OR 8 x (2 x 6)
The new dimensions are either l = 16 and h = 6 OR
l = 8 and h = 12
Slide 27 - Slide
Slide 28 - Slide
Slide 29 - Slide
Slide 30 - Slide
Slide 31 - Slide
A
rectangle X has the greater area
B
rectangle Y has the greater area
C
rectangle X has the greater perimeter
D
rectangle Y has the greater perimeter
Slide 32 - Quiz
Slide 33 - Slide
A
rectangle P has the greater area
B
rectangle Q has the greater area
C
rectangle P has the greater perimeter
D
rectangle Q has the greater perimeter
Slide 34 - Quiz
Slide 35 - Slide
A
rectangle R has the greater area
B
rectangle S has the greater area
C
rectangle R has the greater perimeter
D
rectangle S has the greater perimeter
Slide 36 - Quiz
Slide 37 - Slide
Slide 38 - Slide
Slide 39 - Slide
Slide 40 - Slide
Slide 41 - Slide
Slide 42 - Slide
Slide 43 - Slide
Slide 44 - Slide
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