AI Tutor
Imagine you and your friends line up three toy trains. How do you tell someone which one reaches the farthest across the rug?
We use special measurement words like longer and longest to describe and prove how sizes compare.

Comparing Two Things

When we compare two objects, we add -er to our describing word.
If a red ribbon has more length than a blue ribbon, the red ribbon is longer, and the blue ribbon is shorter.
What happens when a green ribbon joins the group and we have three ribbons to compare?

Comparing Three or More

When we compare three or more objects, we change the ending to -est.
The one object with the most length is the longest, while the one with the least is the shortest.
Does size only mean measuring flat along the floor, or can we measure in other directions?

Matching the Word to the Direction