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Well, viewers, I am Sunnie Anthony Macar Jr,
a graduate of the Kakata Rural Teacher Training Institute, 2008-2009,
and presently I work with the demonstration school in Kakata Margibi County.
Well, today, our lesson, we will be dealing with math
and our topic is finding factors
but before we find factors we have to know the definition of factors.
So according to the definition, factors are numbers a larger number can be divided by.
Example find the factors of 12.
12 is a larger number, and we are asked to find the factors.
I will be showing you two methods.
There are several methods but for today we will be dealing with these two methods.
And for method 1,
in order to find the factor we have to list the multiples,
that is, the number that we can multiply to be 12.
Starting with 1 onwards to 12 itself.
So we start 1 times 12 equals 12.
We go onto 2. 2 times what number can give us 12?
2 times 6 equals 12.
We go onto 3. 3 times what number can give us 12?
3 times 4 equals 12.
So we move onto the next number.
We move onto 4 but we notice that 4 is already here
and 3 times 4 is the same as 4 times 3.
So we go onto 5. 5 cannot be multiplied by another number to give 12.
We go onto 6. 6 can be multiplied by a number to give 12.
But we find out 6 is already here.
And 2 times 6 is the same as 6 times 2.
So we move onto 7. 7 cannot be multiplied by another number to give 12.
Likewise 8, 9, 10, 11.
And 12 itself can be multiplied by a number to give 12
but we find out that 12 is already on the board
and 1 times 12 is the same as 12 times 1.
So we are done.
Now how do we list the factors of this larger number 12?
We start from 1 in a U form
and all these numbers will be selected to give our factors.
So we start in a U form: 1, 2, 3, 4, 6 and 12.
So these numbers in this rectangle will be the factors of 12.
All these numbers are the factors of 12.
We have 1, we have 2, we have 3, we have 4, we have 6 and 12.
These are the numbers that are here: 1,2, 3, 4, 6 and 12.
Now according to the definition, the definition says factors are numbers a larger number can be divided by.
Now we were giving an example to find the factors of 12.
So according to this definition, the larger number here is 12
and all these numbers can go into 12
so we take these numbers as the factors of 12.
1 can go into 12, likewise 2, 3, 4, 6, and 12.
So these are the factors of 12 using method 1.
Now we move onto method 2.
We are giving some graphic illustration of finding the factor.
We use the whole number 12.
And we ask ourself, ourself, the logical order from 1 to 12,
what are the numbers between 1 and 12 that can go into 12 itself?
We start with 1 again. We take 1. Can 1 go into 12?
Yes, 1 can go into 12. So what do we do?
1 goes into 12 how many times? 1 goes into 12, 12 times.
So we put the 12 on the right extreme.
We move onto 2. Can 2 go into 12? Yes, indeed.
2 can go into 12. 2 goes into 12 how many times? 6 times.
So we place 2 here and we place 6 on the next extreme.
We move on the next number 3. Can 3 go into 12?
Yes, 3 can go into 12 how many times? 4 times.
So we place 3 and place 4 on the right extreme.
So we move onto 5. Can 5 go into 12? No.
Can 6 go into 12? Yes, but we already have 6 in our graphic illustration.
So we move onto 7. Based on the fact that 6 is here we cannot use 6 again so we move onto 7.
7 cannot go into 12.
Likewise 8, 9, 10 and 11.
12 itself can go into 12,
but according to our graphic illustration we already have 12 on the board.
So we stop with 12, and 12 itself is a factor of itself.
Now in order to list the factors of 12 under Method 2
we list all the numbers that we have discussed that can go into 12
and all the numbers are 1, 2, 3, 4, 6 and 12.
So the factors of 12 are 1, 2, 3, 4, 6 and 12
using illustration of graphic organizer under Method 2.
Thanks for today's lesson. We hoped you learned from it.