In this video tutorial [2:10], perpendicular lines are defined and explained in this lesson. Take a quiz to assess learning.

A screencast lesson [3:38] defining a phrase, introducing different types of phrases, and explaining how to recognize phrases within sentences.

This tutorial focuses on picking a research topic by brainstorming and freewriting about what interests you or what you want to learn more about and doing background reading to see what information is available for your possible topics. It provides a video [6:03] to narrow your ideas down to a single, manageable topic to fit the assignment.

A screencast lesson discussing different types of plagiarism and examining the issue including consequences and solutions. [3:20]

This lesson discusses the issue of plagiarism and types of plagiarism. It is 5 of 5 in the series titled "Plagiarism." [6:06]

Explore why objects drawn on a plane are two dimensional in this video tutorial. [4:57] Take a quiz to assess learning.

This lesson will explore the nitrogren cycle and photosynthsis of plants. It is 1 of 3 in the series titled "Plant Kingdom: Photosynthesis."

A brief, descriptive podcast examining the main structures and functions of green plants. [0:47]

This lesson will explain the role of plants in everyday life. It is 1 of 5 in the series titled "Plants."

This lesson introduces the concept of plots (how the material is organized and presented to the reader so that the text will have a specific effect on him or her) in fiction. It explains the plot diagram and provides examples. RL.9-10.5 text structure effects, RL.11-12.3 Auth choice story elem

Explore the parts of point-slope form and assess learning with a quiz. [3:26]

Students take a look at the persuasive techniques used in political cartoons, then answer questions to reinforce the concept. [3:39]

Using electronic and print resources, this tutorial explores media bias and how political candidates are portrayed in the news. [2:42]

This audio lesson explains how a possessive or a possessive pronoun can be used preceding a gerund in a sentence. It is 2 of 2 in the series titled "Possessives and Gerunds."

A narrated presentation illustrates some problems calculating the acceleration of an object when time is unknown, but position and velocity are. [6:45]

Practice some problems using Newton's second law of motion, when accounting for the force of air resistance. [5:58]

Watch this video which provides example problems using the simplified conservation of energy equation. [7:47]