This document is an English-language abstract (approximately 1500 words) summarizing the author's definitions of the principal physical and human characteristics of elementary and secondary education as presently constituted in Mexico so that school personnel may comply with Mexican regulations that force them to supply educational statistics. For this purpose, he has taken into account the UNESCO Manual of Educational Statistics and the Basic Statistics for Educational Planning of the Inter-American Institute of Statistics. The primary (elementary) school is defined in terms of its objectives and functions. Rural schools, school buildings, types of financing, secondary education, technical, industrial, and commercial schools, institutes of technology, qualification-oriented training, aesthetic education, military education, and teacher training are all defined and briefly discussed. (Author/GDB)