As stated above, there are four different categories that define various levels of Service-Learning that Sigmon created, using graphical representations of the two words. Each have their different advantages, and their different purposes in the world of Service-Learning. An activity such as students offering community service to an agency would classify as “SERVICE-learning”, because the service aspect is taking the forefront of the work. If a student, or a group of students studies the observation of community groups, or something along those lines, it would be classified as “service-LEARNING”, because the learning aspect is the main focus of that type of project. Now “service learning” is a little different than the last two, as the service and learning aspects are separate from each other, with neither taking the spotlight. An example of this definition would be volunteer programs within a college, that have no real connection to the academics they are pursuing. When both service and learning are of equal weight, it is seen as “SERVICE-LEARNING”, as both are being put together instead of being separated, or one taking the main focus over the other. An example of this type of service could be a group of students volunteering to serve in a certain area, but also studying the subject while putting in their service, and coming up with ideas to help improve the work they are doing. All of these variants come underneath the wing of Service-Learning, and each of them can be used at different times, depending on the circumstances.