Complex sentence: As a result, the private schools were estimated to grow to 470 pro-PRC schools and 200 non-or anti-PRC schools in 1966 and most of the PRC schools curriculum was based on Mao Zedong thought and the "History of the Chinese Communist Revolution and Literature".
Split into simpler sentences: As a result, the private schools were estimated to grow to 470 pro-PRC schools and 200 non-or anti-PRC schools in 1966. Most of the PRC schools curriculum was based on Mao Zedong school of thought, along with the "History of the Chinese Communist Revolution and Literature".