Printed by Cheng Chung Book Company (正中书局) in 1954, this set of books served as a teaching resource and a guide on modern teaching methodologies for Chinese educators. Such books were likely used to train teachers of Chinese-medium schools in Singapore.Set up in 1931 in Nanjing, Cheng Chung Book Company focused on writing and publishing textbooks. After the founding of the People’s Republic of China in 1949, the company moved its operations to Taiwan and is still in existence today.