Alliance (GSO) serves Glenbrook North's LGBT population. There is also a feminist club. Academics The academic school year consists of 37 weeks divided into two semesters. It has a block schedule with classes meeting on alternating days and each school day consists of four blocks of 90 minutes each. The summer school program is six weeks in length. Honors level courses are offered to qualified students. Advanced Placement (AP) courses are available in a range of topics including English, history, math, science, art, music, computer science, and world languages. In 2021, the school graduated 96% of its senior class, and 98% enrolled in college. The 2021 class included 14 National Merit Semifinalists and 176 Illinois State Scholars. The student-to-teacher ratio is 11.54 to 1. In 2022, it was ranked the 48th best public high school in the United States by Niche. In 2016, it was ranked 23rd on the public high schools with the best teachers in America by Business Insider. Debate The school's debate team was ranked the top debate school of the 20th century based on performance in the National Speech and Debate Association. The school has won numerous state and national championships in Policy Debate, as well as state championships in Lincoln-Douglas and Public Forum Debate. It is the only high school debate program in the country to have ever won the debate's "Triple Crown," sweeping the National Speech and Debate Association Tournament, the Tournament of Champions, and the Grand National Speech and Debate Tournament in 2004. Since 1974, it has won at least one national championship in debate in fourteen individual years. It has also won an Illinois High School Association (IHSA) state championship in 18 of the 35 years since 1982, and has placed as runner up in three of those years. Athletics Glenbrook North offers many sports including, but not limited to baseball, basketball, bowling, cheerleading, cross-country, football, golf, ice hockey, lacrosse, soccer, softball, swimming, tennis, track, and volleyball. The school is a member of the Central Suburban League North and the Illinois High School Association (IHSA). William Lutz Stadium, which is the home of the Glenbrook North's football, lacrosse, track and field and soccer teams, is named in honor of William Lutz, the school's first athletic director. In 2005, the school became the first large-enrollment high school in Illinois to have won a state championship in each of football, basketball and baseball. The