steps to learn addition
DESCRIPTION
‘Steps to Addition’ can be used to teach, learn and enhance pupils’ understanding about concept of addition of 2-digit numbers. It emphasizes on combining two 2-digit numbers in order to get the total. It is really helpful in introducing, teaching and learning addition as it helps the pupils to build up understanding the concept of addition and then comes to learn on how it works as a step towards the compact method for addition..TRANSCRIPT
Understand addition as
combining two groups of objects
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TEACHERGUIDE
LEARNING OBJECTIVE
Understand addition as combining two groups of objects.
LEARNING OUTCOME
At the end of the lesson, pupils should be able to: Add two numbers
with regrouping and without regrouping two 2-digit numbers and
answer at least 4 questions correctly.MAINMENU
Topic: Pupils will learn:
Add two-numbers without regrouping
• Counting altogether one by one
Add two-numberswith regrouping
• Introduction to standard written method
Problem SolvingQuestions
• Identify what the information given, what the question ask for and what operation is needed and how to solve it.MAIN
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ADD TWO-NUMBERS WITHOUT REGROUPING
ADD TWO-NUMBERSWITH REGROUPING
PROBLEM SOLVING
OMA EXERCISES
PROBLEM SOLVINGEXERCISES
1
2
3
4
5
Add two numbers without regrouping
I have 12 red balls and 20 green balls. How
many balls are there?
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Add two numbers without regroupingHow many balls are there?
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How many balls are there?
Red balls plus green balls
How many red balls are there?
12
How many green balls are there?
20
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Add two numbers without regrouping
How many balls are there?
12 + 20 =
12 plus 20 equals .
There are balls.
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Add two numbers without regrouping
How many balls are there?
12 + 20 =
12 plus 20 equals .
There are balls.
321 23 45
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Add two numbers without regrouping
How many balls are there?
12 + 20 =
12 plus 20 equals .
There are balls.
3232
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Add two numbers without regrouping
How many balls are there?
12 + 20 =
12 plus 20 equals .
There are balls.32
3232
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Add two numbers with regrouping
I have 15 yellow stars and28 green stars.
How many stars are there?
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I have 15 yellow stars and28 green stars.
How many stars are there?
15 + 28 =Tens One
s1 23 45
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I have 15 yellow stars and28 green stars.
How many stars are there?
15 + 28 =Tens One
s1 23 45
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Therefore,
Tens Ones
15 and 28 makes
1 23 45
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I have 15 yellow stars and28 green stars.
How many stars are there?
1 5 + 2 8
T O
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I have 15 yellow stars and28 green stars.
How many stars are there?
1 5 + 2 8
T O
Add the ones.
5 ones + 8 ones = 13 onesRegroup :
13 ones = 1 ten + 3 ones
Regroup
1 3
4
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I have 15 yellow stars and28 green stars.
How many stars are there?
What is given?
I have 15 yellow stars and
28 green stars.How many stars are
there?What is asked for?
I have 15 yellow stars and
28 green stars.How many stars are
there?
What operation is needed?
Addition
I have 15 yellow stars and
28 green stars.How many stars are
there?
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I have 15 yellow stars and28 green stars.
How many stars are there?
Write the number sentence
15 + 28 = 1 23 45
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15 + 28 =
1 5 + 2 8
T O
Add the ones.
5 ones + 8 ones = 13 onesRegroup :
13 ones = 1 ten + 3 ones
Regroup
1 3
4 15 + 28 = 43
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QUESTION
+ =
ANSWER
RESET
YourMark
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35 + 54 =
Mark
Mark
Mark
44 + 26 = 55 + 28 =
RESET
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Your Total Mark
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QUESTION
Right answer
RESET
I have yellow stars
and green stars. How
many stars are there?
Your Answer
1 23 45
YourMark