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L.O.1

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Underneath each write what half of that number is. ... fractions into your books then write underneath each one its value as a mixed number. ... – PowerPoint PPT presentation

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Title: L.O.1


1
  • L.O.1
  • To be able to recall multiplication and division
    facts involving the 2,3,4,6,7 and 8 times tables.

2
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3
  • Write answers to these questions in your books
  • 1. What is the product of 7 and 8?
  • 2. Which factors of 60 are shown on the sheet?
  • 3. Which numbers are multiples of 6?
  • 4. Which numbers are square numbers?
  • 5. What is 21 divided by 3?
  • 6. Which numbers are in the 7x table?
  • 7. Which numbers are divisible by 3?
  • 8. Which numbers have no other factors?

4
  • L.O.2
  • To be able to relate fractions to division and
    to use division to find simple fractions,
    including tenths and hundredths, of numbers and
    quantities.

5
  • 32 40 24 36 56 44 140 84
  • Copy these numbers into your book as they are
    here.
  • Underneath each write what half of that number
    is.
  • Under that write what a quarter of each of these
    numbers is.

6
  • 32 16 8
  • This diagram represents 32 divided by 4.
  • Q. How can we use this grid to find ¾ of 32?

8
8
8
8
7
  • We can add 8 8 8 24
  • This is the same as finding
  • ¼ ¼ ¼ or ¼ x 3
  • Find ¾ of each of the other 2 numbers by the
    same method.

8
  • 9 21 36 60 330 150 99 270
  • Copy these numbers into your book as they are
    here.
  • Underneath each write what one third of that
    number is.
  • Q. How can we use these answers to find two
    thirds of the
  • number?

9
  • 2/3 1/31/3 or 1/3 x 2

10
  • 4/5
  • Q. How can we find 4/5 of 30?

11
  • 30

6 6 6 6 6
1/5 of 30 is 6 4/5 of 30 1/5 x 4 4/5
of 30 6 x 4 24
12
  • Q. How can we find 3/5 of 35?
  • Q. How can we find 2/5 of 40?

13
  • Discuss these problems with two other people in
    your group and on the paper provided write down
    how you solve them.
  • Be prepared to tell the rest of the class
  • how you did it.

14
  • To find 3/5 of 35 we divide 35 by the
    denominator 5 and multiply the answer by the
    numerator 3.
  • LOOK
  • 35 / 5 7
  • 7 x 3 21
  • 3/5 of 35 21

15
  • To find 2/5 of 45 we divide 45 by the
    denominator 5 and multiply the answer by the
    numerator 2.
  • LOOK...
  • 45 / 5 9
  • 9 x 2 18
  • 2/5 of 45 18

16
  • 1/3 ______
  • 36
  • 2/3 ______
  • Q. What is 1/3 of 36? What is 2/3 of 36?

17
  • 1/3 _______ 12
  • 2/3 _______ 24
  • 36
  • 3/3 _______
  • 4/3 _______
  • Q. What is 3/3 of 36 (i.e. all of it) ?
  • Q. What is 4/3 of 36 (i.e. more than all of it)
    ?

18
  • 45 ( fifths) 48 ( sixths)
  • 21 (sevenths) 56 ( eighths).
  • With the other two people in your group find
    fifths of 45 i.e. 1/5 2/5 3/5 4/5 5/5
    6/5
  • sixths of 48
  • sevenths of 21
  • eighths of 56.
  • Q. What is 6/7 of 21?

19
  • Find answers to these sums
  • Tetrahedra 2/3 of 30 ¾ of 32 2/5 of 45
  • Spheres ¾ of 36 2/3 of 24 4/5 of 60
  • Prisms 2/5 of 65 3/8 of 72 2/7 of 63
  • 5/6 of 42 2/9 of 27 4/11 of 121.

6 minutes
20
  • 520 32m. 28 kg.
  • Q. What is 3/10 of 520?
  • Q. If 3/8 of 32m. is 12m.,
  • what is 6/8 of 32m? What is ¾ of 32m?
  • Q. What is 1/7 of 28kg?
  • What is 3/7 6/7 9/7 of 28kg?
  • Be prepared to explain how you worked out
    the answers!

21
  • By the end of the lesson children should be
    able to
  • Relate fractions to division.
  • Find fractions to numbers and
  • quantities.

22
  • L.O.1
  • To be able to multiply or divide whole numbers up
    to 10 000 by 10 or 100

23
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24
  • Answer the questions neatly in your books.
  • Put 1 to 10.

10 minutes
25
  • L.O.2
  • To be able to relate fractions to division and
    to use division to find simple fractions,
    including tenths and hundredths of numbers and
    quantities.

26
  • Remember..
  • 3/10 of 520 (520 / 10)x 3 52 x 3 156
  • (The brackets show which calculation to do
    first)
  • Lets try this
  • 4/5 of 35m.
  • Copy this calculation into your book as a guide.

27
  • 120 was shared out in this way.

A had 1/6 B had 2/5 C had 3/10
How much did D have?
You have three minutes to work out the answer
with your group.
28
  • How did you do it?
  • Look
  • A had 1/6 of 120 120 / 6 20
  • B had 2/5 of 120 (120 /5)x2 24x2 48
  • C had 3/10 of 120 (120/10)x3 12x3 36
  • 20 48 36 104
  • D gets 120 - 104 16

29
20 minutes
30
  • It is school activity day for the 160 pupils
    at
  • Lovemaths Junior School.
  • Q. 3/10 of the children play table tennis. How
    many
  • children is that?
  • Q. 2/5 of the children play football. How many
    is that?
  • Q. ¼ of the pupils choose a cookery activity.
    How many
  • are in the kitchen?
  • Q. What number of the pupils cant decide what
    to do?

31
  • By the end of the lesson children
  • should be able to
  • Relate fractions to division.
  • Find fractions of numbers and
  • quantities.

32
  • L.O.1
  • To be able to count steps of a quarter, a third,
    a half and a fifth.

33

We are going to count in quarters.

0 ¼ 2/4 ¾ 4/4
5/4 6/4 7/4 8/4 9/4
10/4

34

We are going to count in quarters.

0 ¼ 2/4 ¾ 4/4
5/4 6/4 7/4 8/4 9/4
10/4
1 11/4 12/4 13/4 2
21/4 22/4
35
  • We are going to count in thirds.


0 1/3 2/3 3/3 4/3
5/3 6/3 7/3 8/3 9/3
10/3
1 11/3 12/3 2 21/3 22/3
3 31/3
36
  • We are going to count in halves.


0 ½ 2/2 3/2 4/2
5/2 6/2 7/2 8/2 9/2 10/2
1 1½ 2 2½
3 3½ 4 4½ 5
37
  • We are going to count in fifths.


0 1/5 2/5 3/5 4/5 5/5
6/5 7/5 8/5 9/5 10/5

1 11/5 12/5 13/5 14/5 2
38
  • L.O.2
  • To be able to order a set of fractions including
    mixed numbers and position them on a number line.

39
  • 4/4 1 3/3 1 2/2 1 5/5 1
  • Q. What other fractions are equivalent to 1.
  • Q. If a fraction is equivalent to 1 what can we
    say about the numerator and the denominator?

40
  • 8/4 6/3 4/2 10/5
  • Q. How else can we represent these fractions?
  • Q. What fractions would be equivalent to
  • 3
  • 4
  • 5
  • Q. How do we decide if a fraction is
    equivalent to a
  • whole number?
  • Hint Is it something to do with the
    relationship between the numerator and the
    denominator?

41

6
10
3
4
Q. What must the numerators be to make these
fractions equivalent to 5 ? Why?
42
  • 36 40 120

Q. What must the denominators be to make these
fractions equivalent to 4 ? Why?
43
  • 16 / 5
  • Q. Which whole numbers does this fraction lie
    between?
  • Remember these signs? gt lt
  • Look.
  • 16/5 gt 15/5 ( 3) 16/5 lt 20/5 ( 4)

44
  • 16/5 31/5
  • 31/5 is called a MIXED NUMBER
  • because its a mixture of a whole number (
    3 )and a fraction (1/5)

45
  • 16/5 31/5

31/5
0 1 2 3 4
5
This is where our mixed number will go on a
number line.
46
  • Copy carefully into your book
  • 9/4 gt 8/4 (2) 9/4 lt 12/4 (3)
    9/4 21/4
  • 11/3 gt 9/3 (3) 11/3 lt 12/3 (4)
    11/332/3
  • 29/6 gt24/6 (4) 29/6 lt 30/6 (5)
    29/6 45/6
  • 11/10gt10/10 (1) 11/10lt 20/10 (2)
    11/1011/10

47
  • 9/4 11/3 29/6 11/10

11/10
21/4
32/3
31/5
45/6
0 1 2 3 4
5
This is where our mixed numbers will go on a
number line.
48
  • Copy these fractions into your books then write
    underneath each one its value as a mixed number.
  • 9/4 7/4 5/2 15/8 23/8
    19/8
  • Put the mixed number values on a number line.

49
  • REMEMBER
  • ¼ 2/8
  • ½ 4/8
  • ¾ 6/8

50
  • Do worksheet.

51
  • We are going to convert these to mixed
    fractions and put them on the number line.
  • 22/3 7/3 13/4 3/2 5/4

0 1 2 3
Q. Which is larger 22/3 or 21/4 ?
52
  • By the end of the lesson children should be
    able to
  • Convert improper fractions to mixed numbers
  • Place fractions in order.

53
  • L.O.1
  • To be able to round numbers with one decimal
    place to the nearest integer

54
  • Positive and Negative whole numbers
    are called integers.
  • e.g. 3 301 -7.

55
  • 9.1 9.3 9.5 9.6 9.9
  • Q. How do we round these numbers to the
    nearest integer?

56
  • 9.1 9.3 9.5 9.6 9.9

9
10
57
  • Round these numbers to the nearest integer
  • 10.7
  • 3.2
  • 1.1
  • 0.9
  • 0.1

58
  • 4
  • Q. Which numbers with 1 decimal place
    round to 4?

59
  • The numbers from 3.5 to 4.4 round to 4.
  • 3.5
  • 3.6
  • 3.7 3.8
  • 3.9
  • 4.0
  • 4.1
  • 4.2
  • 4.3
  • 4.4

60
  • In your book write which numbers with one decimal
    point will round to each of these
  • 1. 7
  • 2. 1
  • 3. 0

61
  • L.O.2
  • To be able to round a number with one or two
    decimal places to the nearest integer.

62
  • I need volunteers to draw these numbers on the
    number line.
  • (but only if you can say the number correctly.)
  • 3.32 3.68 3.94 3.17

3
4
3.1 3.2 3.3 3.4 3.5
3.6 3.7 3.8 3.9 3.10
3.20 3.30 3.40 3.50 3.60 3.70
3.80 3.90
63
  • Would 3.32 be rounded down to 3 or up to 4?
  • What about the other numbers?
  • 3.32 3.68 3.94 3.17

3
4
3.17 3.32
3.68 3.94
3.1 3.2 3.3 3.4 3.5
3.6 3.7 3.8 3.9 3.10
3.20 3.30 3.40 3.50 3.60 3.70
3.80 3.90
64
  • Q. Which digit is most important when we
  • are deciding how to round numbers to
  • the nearest integer?
  • Q. How does the number 5 as the first
  • decimal digit affect whether we round
  • a number up or down?

65
  • In your book draw a number line from
    7 to 8.
  • Put these numbers on it.
  • 7.13 7.74 7.57
  • 7.28 7.83 7.46

66
  • You should have a line that looks like this

7
8
7.13 7.28 7.46 7.57
7.74 7.83
67
  • In your book round these lengths to the nearest
    metre
  • 5.73 m 2.97 m 12.03 m
  • 8.48 m 9.25 m 18.52 m

68
  • I start with a number which has two decimal
    places. I round it to the nearest integer. The
    answer is 3.
  • Q. What could my number be?
  • Q. What is the largest / smallest number
  • I could have?
  • In your books round each amount on the next
    slide to the nearest .

69
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70
  • Write some numbers which have 2 decimal points
    and ask your partner to round them to the nearest
    integer.

71
  • 3.49
  • Q. Will this round to 3 or 4?

72
  • By the end of the lesson children should be
    able to
  • Round decimals with one or two decimal
    places to the nearest
  • whole number.
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