How can we measure the length?

We can use blocks to measure the length.

The train is eleven blocks long.

The snake is nine blocks long.

The ship is thirteen blocks long.

We can use ruler to measure the length.

This ribbon is five inches long.

This ribbon is three inches long.

This ribbon is six inches long.

This ribbon is four inches long.

Six is greater than five.

Six is greater than four.

Six is greater than three.

This ribbon is the longest ribbon.