This document is an English-language abstract (approximately 1,500 words) of six teachers manuals from the first to the sixth grade as used in the Mexican school system. They include suggestions for exercises from folding, cutting out, pasting, coloring and similar operations designed for the first grade up to simple electrical and electronic operations for the sixth grade of elementary school. For each grade, the corresponding manual includes recommendations for the conduct of the exercises and suggestions for planning and setting them in an organized manner. When the work is being carried out, it is a good occasion for training the children in habits of precision and order. The manuals should be considered as technical guides, and not as an addition to the curriculum. Each manual is designed specifically to parallel the subject matter and activities in each grade, describing and listing the materials, standards and concepts appropriate to each grade level. Each handbook includes a bibliography. (Author/GDB)