be relevant to an international, expatriate audience. WhichSchoolAdvisor.com, a review based site that looks exclusively at schools attended by expatriates, has 100 international schools listed in its directory, less than the ISC count, but still 17 more than its great city rival, Singapore. Of these 24 schools follow in part or in full a UK based curriculum (largely the I/GCSE up to 16, A Level post 16), while others follow a UK/International Baccalaureate blend with the IB Diploma offered for post-16 study. Some 33 schools in Hong Kong currently offer the Diploma. Hong Kong's international schools are not subject to independent inspection reports by the territory's regulator, meaning word of mouth tends to drive reputation as to what are considered to be the best performing international schools in the territory. A large number of parent forums exist that help parents new to Hong Kong make an often very difficult decision. Private, international schools come at very different prices. The most expensive school is currently Li Po Chun United World College of Hong Kong, with average annual fees of HKD $360,000 (USD $46,450.13). These fees are skewed by the fact that this school is boarding only, and only for the students studying the last two years of the IB. The next most expensive school in the territory is the Chinese International School (CIS), an IB continuum, bi-lingual school (Mandarin and English). Its average fees across year groups is currently HKD 216,500 (USD $27,935). In addition to the international day school, Hong Kong's Japanese population is served by a weekend education programme, the . In 2018 Angie Chan reported that increasing numbers of Chinese students, including Hong Kong Chinese and Mainland Chinese, were enrolling in private international schools. In 2017 the percentage of foreign students in such institutions was under 75%, with Hong Kong Chinese being 21.6% and Mainland Chinese being about 4%. In previous eras virtually the entire international school student body was foreign. There are top-rated exempted courses where courses offered overseas are collaborated with local institutions in Hong Kong to broaden the scope of Tertiary Education in Hong Kong. MIT has an innovation node in Hong Kong. Types of schools Legacy From 1970s/80s to 2011/12 From 2012/13 to present Class size In early days, many primary schools in Hong Kong offered half-day schooling, splitting by AM and PM to handle the demand. The two sessions were usually treated as