### Instruction: A wheel with radius $1\text{ m}$ is rolled in a straight line through one complete revolution on a flat horizontal surface. How many meters did the center of the wheel travel horizontally from its starting location?### Response: One way to approach this problem is to imagine unwrapping the wheel and laying it flat on the surface.
The length of the unwrapped wheel is equal to the circumference of the wheel, which is $2\pi r$, where $r$ is the radius of the wheel.
In this case, $r = 1\text{ m}$, so the circumference is $2\pi \text{ m}$.
This means that the center of the wheel travels $2\pi \text{ m}$ horizontally for every complete revolution.
Since the problem only asks for one revolution, the answer is $2\pi \text{ m}$.