“Em Tìm Hiểu Khoa Học – Lớp Nhì”, published by the Republic of Vietnam Ministry of Education in the 1960s, was intended for Grade Two, which is the equivalent of Fourth Grade today. Designed to foster scientific curiosity, the book teaches children how to observe, reason, and apply science to everyday life. The textbook emphasizes practical learning through experiments, storytelling, illustrations, and guided discovery. It is divided into two sections: one for students and one for teachers. Covering a wide range of topics like animals, plants, the human body, minerals, seasons, and optics, it offers a rich introduction to natural science for young learners.