High Quality Content by WIKIPEDIA articles! Sage Ridge is Reno, Nevada's only non-sectarian college preparatory school and is for grades 5-12. It offers a diverse academic environment through the teaching of various Mathematics, Science, English, History, Spanish and Latin. The curriculum is supplemented with an array of fine arts classes, including various music, art, and theater courses. The middle school (grades 5-8) is required to take a Physical Education course every year. The school is accredited by the PNAIS (Pacific Northwest Association of Independent Schools).