Read about Julius Caesar's reforms of the Roman government in this passage from William Morey's 1901 textbook.

In this passage from William Morey's 1901 textbook, he shows the changes Augustus made in the government of Rome as the empire was being established.

This Nature video segment features the beautiful bird known for its iridescent tail, the peacock.

Formation of informal commands, regular and irregular forms are addressed with links to interactive practice activities. In addition, the formation of formal commands are explained with a link to interactive practice activities. A couple...

Online practice with singular familiar commands and vocabulary that would be used in instructions for completing assignments, tests, or forms. Matching, unscramble, and crossword exercises provide practice using the affirmative "tu"...

Hear a "tu" command and complete the indirect command with the correct form of the verb in the present subjunctive. Answers may be checked and corrected.

Excellent Spanish lesson on informal plural commands that refer to the pronoun "vosotros." Examples illustrate the formation and use of informal vosotros commands in both the negative and the affirmative. A quiz at the end of the lesson...

Comprehensive presentation of command forms using the pronoun "nosotros." This lesson on the first-person plural commands includes the attachement of pronouns to the affirmative command. A quiz at the end of the lesson tests the...

This site from the Internet Encyclopedia of Philosophy gives a general introduction to the field of philosophical ethics. Divines moral philosophy into three main topics: metaethics, normative ethics, and applied ethics, including links...

Low-income and minority students, students with disabilities, and those who are the first in their families to go to college, are often unprepared for and discouraged from taking rigorous academic courses in high school. It is therefore...

Great review of regular and irregular command forms for the pronouns tu and usted. A quiz at the end of the lesson tests the student's mastery of these informal and formal command forms.

An extensive look at verbs in all their various forms and uses. A very valuable and easy to understand resource with many examples.

Information about primates, includes links to primate centers and organizations. Find out about the International Directory of Primatology. Click into "Resources on Primatology" and then "About the Primates" to get to primate-specific...

This is a 15-question, self-grading exercise/quiz on making Sentence Patterns Transformations.

This is a 15-question, self-grading exercise/quiz on making Sentence Patterns Transformations.

This is a 10-question, self-grading exercise/quiz on making Sentence Patterns Transformations.

This is a 10-question, self-grading exercise/quiz on making Sentence Patterns Transformations.

A look at what fossil evidence reveals about the life and ecological interactions of the extinct mammoth.

Conjugate each verb in the "usted" command form in this article to offer advice on driving in caravans. Answers may be checked at the end of the exercise. Tutorials in other langauges available from the homepage.

This EnglishClub tutorial discusses the importance of using sentence variety in the context of paragraphs. The tutorial provides information about sentence types, sentence patterns, and sentence lengths.

In this learning module, students will learn more about end marks and the four types of sentences. Worksheets are provided to reinforce the four types of sentences and punctuation marks. This module is designed to support Tier I, Tier...

Excellent explanation of formal commands in Spanish that use the pronouns "usted" and "ustedes." Stem-changers and irregulars are included in this lesson. Ample examples illustrate the formation and use of formal commands. A quiz at the...

Excellent introduction to informal commands in Spanish that use the pronoun tu. Ample examples illustrate the formation and use of informal commands in both the negative and the affirmative. A quiz at the end of the lesson tests the...

Great introduction to irregular affirmative commands in Spanish that use the pronoun tu: decir, hacer, ir, poner, salir, ser, tener, and venir. A quiz at the end of the lesson tests the student's mastery of these irregular command forms.