Today we will be: Identifying odd and even numbers....Even numbers can be shared equally into two...
Transcript of Today we will be: Identifying odd and even numbers....Even numbers can be shared equally into two...
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Let’s share objects equally
Today we will be: Identifying odd and even numbers.
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Count in twos from zero to 20 and back again.
Mental Oral Starter
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Now use this skill to count in twos from 20 to
40 and back again.
Mental Oral Starter
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What is an even number?
What is an odd number?
Think, pair, share.
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Even numbers can be shared equally into two groups. Odd numbers cannot be shared equally into two groups.
Prove if three is even or odd. Prove if six is even or odd.
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Even numbers can be shared equally into two groups. Odd numbers cannot be shared equally into two groups.
Three is odd. Three things cannot be shared equally
into two groups.
Six is even. Six things can be shared equally into two
groups of three.
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How can we write this as a division number sentence? Think about how we shared the objects.
Six is even. Six things can be shared equally
into two groups of three.
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We had six objects in total. We shared them into two groups. We were left with two equal groups of three.
Six is even. Six things can be shared equally
into two groups of three.
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Is ten odd or even? Can it be shared into two equal groups? Explain your answer.
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Ten is even. It can be shared into two equal groups of five.
Ten is an even
number.
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Is thirteen odd or even? Can it be shared into two equal groups?
What is your
prediction? Why?
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Thirteen is odd. It cannot be shared into two equal groups.
I noticed there are three ones
in thirteen. Three is odd, so I predicted thirteen would
be odd.
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Is sixteen odd or even? Can it be shared into two equal groups?
What is your
prediction? Why?
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Sixteen is even. It can be shared into two equal groups of eight.
I noticed there are six ones in sixteen. Six is
even, so I predicted
sixteen would be even.
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Is twenty-one odd or even? Can it be shared into two equal groups?
What is your
prediction? Why?
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Twenty-one is odd. It cannot be shared into two equal groups.
I noticed there is one one in twenty-one.
One is odd, so I predicted twenty-one
would be odd.
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Is twenty odd or even? Can it be shared into two equal groups?
What is your
prediction? Why?
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Twenty is even. It can be shared into two equal groups of ten.
I noticed there are no ones in twenty. Zero is
even, so I predicted
twenty would be even.
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Highlight the even numbers.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Plenary
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Now predict if this number will be odd or even.
Plenary
0, 1, 2, 3, 4, 5, 6, 7, 8, 9BACK
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Sixty-two is even!
Plenary
0, 1, 2, 3, 4, 5, 6, 7, 8, 9BACK
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Now predict if this number will be odd or even.
Plenary
0, 1, 2, 3, 4, 5, 6, 7, 8, 9BACK
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Eighty-four is even!
Plenary
0, 1, 2, 3, 4, 5, 6, 7, 8, 9BACK