Houston, we have lift-off.... Alright space cowboys, today we are decorating Jenny's room like outer space. Speaking of space, we need to make sure all of her furniture fits! Join us in this video as we learn to compare lengths. The word length means how long something is, and it is important to understand how to correctly measure an object by ordering and comparing it to another object. If we get Jenny a tiny bed and desk, do you think we can fit a life size model of Mars in her room also?