Science education in England
For the ages of 16, 17 and 18 (and older for those that remain in education below university-level), students in England do what is sometimes loosely called ‘key stage 5’ or KS5; it has no legal meaning (unlike the other key stages). And unlike KS1–4 in which the levels of complexity of topics learnt at each stage are prescribed within relatively narrow limits, at KS5, the levels of complexity of topics cover a wide range, although the highest level of complexity at KS5 is RQF level 3. Whether or not a student actually studies at this level of complexity in KS5 depends on his/her GCSE results—crucially on what subjects the student obtained passes at RQF level 2 standard (including mathematics and English) as well as the actual grades themselves. In other words, unlike KS1–4, where a specific student studies at one RQF level, at KS5, a specific student may be studying at several RQF levels depending on what s/he obtained at GCSEs. Regardless of the RQF-level mix, a KS5 student can do his/her post-16 study in one of the following:
Crystal Lake South High School
Crystal Lake South High School, often referred to as "South" or "CLS," is one of three high schools in Crystal Lake, Illinois, and currently has a body of roughly 1916 students. As Crystal Lake's second oldest school, it was constructed from 1976 to 1978 and opened in September 1978 after Crystal Lake Community High School, now Crystal Lake Central High School, split into two schools due to the pressures of the population growth in the communities it served, Crystal Lake, a part of Lake in the Hills and a small portion of Algonquin. South graduated its first class in 1979 - this class consisted of approximately 250 seniors who were transferred from Crystal Lake Central High School. South graduated its first class who attended all four years in 1982.