Download Addition 1 - Planet Maths

Addition 1
Strand: Number
Strand unit: Operations Addition
Explore, develop and apply the commutative properties of addition.
Explore, develop and apply the zero properties of addition.
Looking at the early stages of contributing to addition.
Counting, analysis of numbers, combining, partitioning and numeration.
Apply mathematical concepts and processes in a variety of
contexts; recognise solutions to problems.
Communicate and express ideas through group work/pair
work and on an individual basis in oral and written form.
Make connections with mathematics itself, through other subjects
and in applying mathematical tasks to everyday contexts.
Make sensible judgements while estimating; reason problems using various
techniques and strategies.
Implement what has been learned into discussions, activities and written work;
execute procedures efficiently.
Understand the reasoning behind learned concepts; recall facts
in order to support understanding and the process of problem solving.
Number fans, cubes, counters, lollipop sticks
Make, count, altogether, add, plus, equals, more, sign, sum, total, commutative,
more, less, How many?, zero
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General lesson suggestions
Give each child a bingo card with number bonds on it. The teacher calls out a number: ‘10’ and if
a child has, e.g. 6 + 4, they cover it with a counter.
Using dominos, the children are instructed to write the number sentence that reflects the
commutative property of addition. The teacher demonstrates how to rotate the dominos to show
1 + 3 / 3 + 1 = 4.
Using number fans, the teacher calls out equations and asks the children to show the missing
number, e.g. 5 + 3 = 3 + ____. The pupils then show the number on the number fans.
Before beginning Section A, the teacher carries out a short demonstration with concrete objects
to show the children commutative property (2 + 3 = 3 + 2). The teacher should show the
children that both sides are the same by counting the concrete objects on each side.
The teacher calls out an example, which the children complete with the teacher:
4 + 1 = 1 + ____. What number is missing?
3 + 6 = 6 + ____
4 + 5 = 5 + ____
2 + 7 = 7 + ____
8 + 6 = 6 + ____
10 + 8 = 8 + ____
Lesson suggestions
Use a range of concrete materials, including the children themselves, to practise
commutative property, e.g. 5 + 1 = 1 + 5. The teacher should demonstrate first,
and then the children should be encouraged to have a go.
Repeat the suggested activity for page 10, this time using different concrete materials.
Station teaching may also be used to give children a wide range of experiences using concrete
materials to demonstrate the commutative property of addition.
Explore the zero property of addition using concrete materials, such as cubes, counters and
lollipop sticks.
Use zero strip templates.
Divide the children into groups, and give each group 5 sums. The children show the sum using
the concrete materials and place the slip underneath the appropriate concrete materials.
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See separate activity sheets.
3 + 15
3
+ 0
=
0
+ 11 =
17 + 0
=
15
+
3
=
10
+
3
=
20
+
0
=
3
+
5
=
7
+ 0
=
0
+ 19 =
20 + 0
=
17
+
2
=
14
+
7
=
9
+ 0
=
0
+ 14 =
10 + 0
=
8
+
0
=
8
+
3
=
12 + 0
+ 16 =
12
+
6
=
12
+
4
=
19
+
1
=
16
+
1
=
13
+
5
=
12
+
5
=
18
+
2
=
11
+
2
=
18
+
0
=
10
+
0
=
3
+
8
=
3
+ 18
=
20
+
2
=
11
+
3
=
17
+
3
+ 15
=
6
=
4
+ 17
=
+
0
=
8
+
2
=
19
+
3
=
12
+
8
=
13
+ 15
=
20
+
4
=
1
+
=
20
+
5
=
18
+ 10 =
19
+
2
=
13
+
8
=
23
+
0
=
6
+
3
=
3
+
0
=
2
Name: _______________________________________
Date: ___________________
19 = M
17 = P
10 = L
11 = E
7=H
3=O
20 = A
16 = N
___ ___ ___
19 20
9
9=T
___ ___ ___ ___ ___ ___
17 10 20 16 11
9
___ ___ .
7
14
Draw the picture here.
Name: _______________________________________
© Folens Photocopiables
=
+
0
14 = S
___ ___
12
3
© Folens Photocopiables
0
8
12
=
12 = G
Date: ___________________
167
166
Linkage
Counting and numeration
Money
2D shapes
Representing and interpreting data
Use of number fans. Split class into groups. Place the number fans a distance
away from the children (other end of the hall/yard). You call out a either a commutative sum or
zero sum. The children who are first in the lines of the group run to the end, pick up their number
fans, find the correct answer and run back to the group. First back with the correct answer gets a
point for their team. Again you change movement methods (skip, hop, jump, etc.).
Parents can encourage their children to be aware of the commutative property and zero
property of numbers in the environment. Have children use objects at home to demonstrate the
commutative property. For example 3 books + 2 books = 2 books + 3 books. They can also
demonstrate the zero property by showing 3 books + 0 books = I still have 3 books (number
doesn’t change). Quiz children on both rules to see if they understand the concept.
Notes
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