Presents statistics of a girl's age, height, and weight at menarche, and the possible effect on these variables of various factors such as her health, genetic inheritance, socioeconomic circumstances, and environment. The behavior of present day adolescents cannot be attributed to earlier physical and sexual development. (Author/IRT)

Research indicates that exemplary teachers share various characteristics, including a desire for continuous renewal. This book reports on a study to investigate exemplary teachers' personal and professional renewal throughout their career and selected factors that have enabled and/or constrained their renewal. The study involved six participants;…

Using data primarily from United Nations Statistical Yearbooks, but from other sources as well, this Atlas provides an overview, in graphical form, of issues affecting children in Africa. Some of the issues covered, such as immunization, affect children directly. Others, such as economic progress, are included because they form part of the…