Fractions on a number line by Teagan and Madison.
Right here are 8ths.
This is zero and zero is on top and that means
there's nothing yet.
but there's 0/8, 1/8, 2/8, 3/8, 4/8,
5/8, 6/8, 7/8, and then 8/8 which is also
1 whole.
And then up here are...fourths.
These are fourths.
We start off with nothing again, then we go
0/4, 1/4, 2/4, 3/4, and 4/4 which is 1 whole.
Now I'm going to show you how to do these
fractions but with thirds on a number line.
so this is 1 whole.
That is always 1 whole to the farthest. and
this is zero. and i'm going to break it up
into thirds.
Then you go 0/3, 1/3, 2/3, and then 3/3 is
1 whole.
If you don't understand this, this is what
you should think.
You should break the number line into different
parts so that the number you are given, like
Madison showed you is that many spaces.
1,2,3 change into thirds, so there should
be 3 parts.
What if you want to break up into 1/3, you
don't want to have 4 lines.
because then you would have fifths.
But you don't want to do 3 lines, you don't
want to do more than 2, you don't even want
to do 1 line.
You always want to do 2 for thirds, 7 for
eighths, and 3 for fourths.
That's one thing we are showing you.
Another thing is.
we have a word problem now.
So the word problem is that I think
Madison has a snake collection.
If one snake is 2/4, in eighths what would
be equivalent?
But she needs to show that on a number line.
But here I have my snake collection.
I am trying to get, put my snakes all together.
I want, I have 3 snakes right now.
But I need 2 more to get, this is what it would
look like.
On a number line.
This would be 0/5, This would be 1/5, 2/5,
3/5, 4/5, and 5/5.
But I only have 3 so I would go 1,2,3.
That's how many I have.
I need 2 more to get my whole snake collection
filled.
So how many more would I need to get it all
filled?
Well that answer is 2.
2/5.
That's how much I need to fill up my snake
collection.
Let's see if you're right.
1,2.
And I add one more snake and another snake.
Now you've filled your collection.
I have.
I didn't know you liked snakes.
It's something you learn.
