There are two main types of secondary schools under Hong Kong education system which are Local school and international. For local schools, it can be divided into four type of school: Local Aid (Fully subsidized by the government but operate by the voluntary institution), Local DSS (Private school receive financial support from the government), local government (operate by the government) and local private (run by private institution). For private international school, which is run by private institution and vary in curriculum and teaching style. The 3-3-4 Scheme is the academic structure for senior secondary education and higher education in Hong Kong with 3 years junior secondary, 3 years senior secondary and 4 years university. Students are required to study four core subjects (Chinese language, English language, Mathematics and Liberal Studies) together with three elective subjects. In order to progress to a university education, students must pass those four core subjects in the Hong Kong Diploma of Secondary Education (HKDSE). Secondary School students tend to have more academically-oriented activities during their secondary school careers. In Hong Kong, the existing education system places more emphasis on academic results. Most parents will consider enrolling their child in tutorial classes or engaging private tutors to help improve the skills and knowledge they need to tackle examinations. Popular academic preps for secondary students include English, Mathematics, Science, History, Geograhy, Debate, Writing and test preps like SSAT, SAT, ACT, TOEFL and others. Higher learning centers for secondary students can be found in Causeway Bay, Wan Chai, Mong Kok, Tsuen Wan, Causeway Bay and Shatin ...etc. Hiring education consultants are also becoming a trend in Hong Kong where parents who are keen on sending their children abroad for school will look for advice and guidance on how to apply to schools abroad like the US, UK, Australia and New Zealand.