This screencast, we see how the shape of a stain defines the angle of impact. In general terms the more circular the stain, the more perpendicular will be the angle at which it struck the surface. The more elliptical the shape of the stain, the more acute the angle will be. With practice and experience, the analyst can recognize the general angle of impact based solely on the shape of the stain.

This learning object is designed to assist students in understanding and interpreting collision evidence found in automotive lamps. In particular, the concepts of Hot Shock, Cold Shock, Hot Break, and Cold Break will be visually addressed.

Students demonstrate an understanding of summary writing by reading step-by-step instructions and then summarizing short paragraphs. Examples of summaries that are poorly written, as well as those that are written well, are included.

In this learning activity you'll write a technical description of an electric pencil sharpener.

Students listen to three telephone messages and enter their evaluation of each one. They then read a list of guidelines for leaving effective messages.

In this learning activity you'll review answers to commonly asked questions about the GED/HSED essay and view the official scoring guide.

The purpose of this learning object is to introduce the learner to the different processes of science.

In this screencast, students demonstrate an understanding of summary writing by reading step-by-step instructions and then summarizing short paragraphs. Examples of summaries that are poorly written, as well as those that are written well, are included.

The learner will identify the three steps in the writing process and the elements in each step.

Read the sentences. Put them in the right order.

Questions about writing headlines

Match the expressions with their corresponding synonyms

LA FORMULACIÓN DE OBJETIVOS GENERALES Y ESPECÍFICOS EN LA INVESTIGACIÓN EDUCATIVA