Download Counting, Reading and Writing Numbers, Comparing and Ordering

UNITS 01-30 22/10/99 12:56 pm Page 50
U N IT 2 6
Counting,
Reading and
Writing Numbers,
Comparing and
Ordering
This week we will concentrate on ordering
numbers, knowing when numbers are missing,
and recording and writing numbers. We will also
count in twos and tens.
OBJECTIVES
• To begin to use and understand ordinal numbers
in different contexts.
• To order a given set of numbers.
• To say a number lying between two given
numbers.
• To count in twos and tens.
L ANGUAGE
between, before, after • first … tenth, missing number,
order • forwards, backwards, smallest, largest
RESOURCES
Large number line, large floor tiles or number mats (1 to
15, 1 to 20), PCMs 4a, 4b, 19, 32, number lines or 100square (PCM 24 or 25), playing cards.
• How did you work that out?
Teaching Input 1
o
Repeat several times.
number lines or 100-square (PCM 24 or 25)
• Can we count in tens to 100?
p
• Can we count back from 100 to 10?
• Look at your number line and count in
twos from 2: 2, 4, 6 and so on.
• Now let’s count the odd numbers: 1, 3, 5
and so on.
• Count, starting from 6, in twos.
Repeat several times.
c
PCM 19
The children fill in the missing numbers.
They must be careful to look for patterns in
counting, since sometimes they should count
in ones, and sometimes in other numbers.
o
large number line (1 to 20)
• Can we count in twos starting at 2?
• Now can we start at 1 and count the odd
numbers?
• Can we start at 10 and count back in
twos?
• One frog has two back legs, so how many
back legs do two frogs have? Three frogs?
50
Shuffle the cards and, secretly, remove
approximately five cards from the pack at
random, then give the cards to the children.
Ask them to order their playing cards in four
lines: hearts, spades, diamonds and clubs.
Can they see which cards are missing? If the
children ask for the cards that have been
removed, give them to them. Repeat until all
the cards have been ordered and the sets are
complete.
Teaching Input 3
p
Teaching Input 2
playing cards (aces to tens)
large number line (dismantled)
Shuffle the cards and leave a pile face down.
The first child takes a card and pegs it to the
line. They take turns to do this until all the
cards have been used and they are in random
order on the line. They then come forward to
move a card and place it in its correct
position. Continue until all the cards are
ordered. Each child can only swap over any
two cards in any one move. This can be
repeated using different numbers and
different cards.
UNITS 01-30 22/10/99 12:56 pm Page 51
COUNTING, READING AND WRITING NUMBERS, COMPARING AND ORDERING
UNIT 26
• What number comes before 15? After 15?
Stand on that number.
Teaching Input 4
c
d
PCM 32
Line the children up in order.
The children should complete the sheet.
• If you are fifth on the line, how many are
in front of you?
• Did you find this difficult? Did you have
any problems?
• What is the number next to the last one?
• How many numbers are between 2 and 6?
4 and 9? 12 and 15?
• Did you look carefully at the numbers?
• How many numbers are there before 12?
Teaching Input 5
o
• When you count, what is the fifth, eighth,
tenth number?
large number cards or number mats (1 to 15)
• What date is your birthday? Can you
move to that position on the line?
Put the number cards/mats in order then, in
turn, ask the children to stand on 10, 12, 4
and so on.
Ask the children to form and ask relevant
questions; this is often quite difficult, but
very valuable.
• You can stand on a number between 12 and
15. What number are you standing on?
• Flo, what is the third number? The sixth
number?
c
PCMs 4a, 4b
Give the children more writing practice.
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Maths Primary PCM 22/10/99 1:04 pm Page 63
Maths Pyramid
PCM 4a
Number garden
draw 1 more leaf like this
colour 2 bugs
circle 3 flowers
draw 4 fish like this
colour 5 petals
circle 6 bugs
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63
Maths Primary PCM 22/10/99 1:04 pm Page 64
Maths Pyramid
PCM 4b
Number garden
draw 7 trees like this
colour 8 bears
circle 9 snails
draw 10 caterpillars like this
64
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Maths Primary PCM 22/10/99 1:06 pm Page 79
Maths Pyramid
P C M 19
Number snakes
2
1
2
4
1
100
80
3
10
5
7
50
30
9
1
7
3
30
60
11
7
14
11
15
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79
Maths Primary PCM 22/10/99 1:06 pm Page 84
Maths Pyramid
P C M 24
84
20
19
18
17
16
15
14
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12
11
10
9
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7
6
5
4
2
0
1
3
20
19
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5
4
2
0
1
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20
0
2
1
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0
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0
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19
20
Number lines
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Maths Primary PCM 22/10/99 1:06 pm Page 92
Maths Pyramid
PCM 32
Put these numbers in order, smallest first.
10
4
6
8
5
8
10
9
7
Now try these:
11
7
12
9
Choose six numbers between 10 and 25.
Can you put them in order?
92
Maths Pyramid Rigby 2000. Copying permitted for purchasing schools only. This material is not copyright free.