The Cambridge Rindge and Latin School, also known as CRLS or "Rindge," is a public high school in Cambridge, Massachusetts, United States. It is a part of the Cambridge Public School District.In 1977, two separate schools called the Rindge Technical School and Cambridge High and Latin School, merged to become what today is known as Cambridge Rindge and Latin School (CRLS).The school is divided into groups called 'Learning Communities.' Currently, the Learning Communities are called C, R, L, and S.Until June 2000, the subdivided schools were known as the Houses of Pilot, Fundamental, House A, Academy, Leadership, and the Rindge School of Technical Arts or RSTA. In 1990, RSTA became a "house" within the main CRLS school. The "Houses" then became "Small Schools" 1, 2, 3, 4, and 5.The High School Extension Program, at the site of the old Longfellow School, just down Broadway, offers a nontraditional approach to the high school learning process, handling only 60–100 students at a time. In 2009 and 2010, the building became a temporary freshman academy to accommodate renovations.CRLS is also noted for its diversity.Beginning in 2003, the City of Cambridge mobiized an ambitious plan to renovate the high school. The project was claimed to be "the first major renovation and refurbishing of the 35-year-old high school building." The project continued to be pushed back, due to state funding issues and other obstructions along the way. In 2006, the state announced a return in funding, and by the Spring 2007 the School Committee started looking at wider ranging renovations for the building. The renovations were completed according to schedule, under way from 2009 to 2011.