Which pencil is longer?
Today we'll compare two objects. Which pencil do you think is longer?
Here are two pencils. But wait — they aren't lined up yet, so it's tricky to tell.
First, let's line up their ends right at this dotted line.
Now look closely! One pencil sticks out farther on the right.
The red pencil is longer than the blue pencil.
And the blue pencil is shorter than the red pencil.
When we line two things up side by side, we can directly compare them. Great work!