An important question is to know why the didactics of mathematics (DM) goes from being only teaching techniques to consolidate as a science and also to locate what kind of science it is. The objective of this article is, through a modern classification of sciences, such as the theory of categorial closure, to locate the DM. Likewise, a very brief…

A library user's handbook for college students and teachers provides an annotated bibliography of reference works. Introductory chapters provide information about the library, the structure of the book, library catalogs, classification systems, and writing research papers. There are chapters containing annotated bibliographies of encyclopedias,…

Reports a study that analyzed natural language search statements constructed by 22 Getty Visiting Scholars as they researched humanities topics on DIALOG. Results show a greater use of names, geographical areas, chronological periods, and discipline terms than scientists use, with implications for the design of humanities online systems and…