Many schools begin implementing wireless technology slowly by creating wireless "hotspots" on the fly. This is accomplished by putting a wireless access point on a cart along with a set of wireless laptop computers. A teacher can then wheel the cart anywhere in the school that has a network drop, plug the access point in and have an instant computer lab. Other benefits for schools that install a complete wireless network--with fixed access points permanently mounted in the building--are that teachers and students can roam freely about the building with a wireless device and connect up at any time. In older buildings, where running CAT 6 cables for a wired network is difficult, the flexibility of a wireless installation can be a big money saver. Many school districts opt to add wireless networks onto their existing networks. This expandability makes wireless networks even more attractive because they can be added onto a school's existing network without abandoning the investment already made in the wired network. Wireless networking provides a tremendous number of uses in the K-12 environment. The creation of wireless hotspots on the fly allows teachers to set up wireless labs in classrooms, auditoriums, common areas and even outside of the building if there is a network drop near a window. Additional uses exist in schools where access points have been installed for full wireless connectivity throughout the campus. This article discusses the additional uses.