A video lesson explaining the structure and function of the human body's major organ systems. [5:58]

This lesson will give a general overview of how organelles help a cell function and will explain the importance of organelles in increasing surface area to volume ratios. It is 2 of 3 in the series titled "Organelles."

This lesson will give a general overview of how organelles help a cell function and will explain the importance of organelles in increasing surface area to volume ratios. It is 3 of 3 in the series titled "Organelles."

This lesson discusses how living things adapt to survive changing environments. It is 4 of 4 in the series titled "Organisms: Adaptations to Environment."

Two slideshows and a screencast on organizational patterns used when writing essays and speeches. The first is a 20-slide presentation explaining the seven most common organizational patterns used in writing: time sequence, spatial, problem-solution, cause-effect, compare-contrast, topical, and emphatic. The second is an 8-slide presentation discussing how to follow the chosen pattern throughout the entire essay. Finally, the screencast [5:12] demonstrates how to write an outline for a multi-paragraph piece. W.11-12.4 Clear/Coherent Writing

A website giving an explanation to the process of osmosis with a PowerPoint presentation, a video of a lab, and a video of an answer to a review question. The PowerPoint presentation reviews the process by which water diffuses through a semi-permeable membrane. Also included on site is video showing a gummy bear lab that illustrates osmosis. Lab places a gummy bear in a bowl of water overnight to see that water moves into the gummy bear. [2:24] The review question poses the issue of why living off salt water could be hazardous to a person's health. [1:47]

This lesson will introduce the process of photosynthesis, and describe why it is important. It is 3 of 3 in the series titled "Overview of Photosynthesis."

This lesson discusses parallel construction and why it is important. [5:04] L.9-10.1a Parallelism

This lesson focuses on participles and participial phrases; it defines each and provides examples. It also offers tips for finding participles in sentences and provides sample sentences with explanations. [6:38]

A video lesson defining the basic vocabulary necessary to describe an ecosystem and its parts. Learn how the abiotic and biotic factors work together to form an ecosystem. [7:27]

This screencast [2:25] defines passive voice, offers reasons for its use, explains how to write using it, and provides examples throughout. It also offers links to more information about passive voice.

This lesson introduces the passive voice and how it is formed. This tutorial lesson shares a short slideshow with the lesson's content.

A video lesson introduces the passive voice and demonstrates how it is formed within a sentence. [7:09]

A video lesson explaining the difference between active and passive voice. It is 5 of 5 in the series titled "The Passive Voice vs. the Active Voice." [5:16]

An animated video lesson followed by notes and additional examples demonstrating how to write in the passive voice and when it would be appropriate to do so. [5:09]

A screencast [5:40] demonstrating how to write a sentence in active voice or in passive voice, followed by a downloadable nine-page PDF describing passive voice and its appropriate uses.

A screencast lesson defining active and passive voice, demonstrating how to construct a sentence in passive voice, and explaining when using passive voice is appropriate. [16:14]

This tutorial focuses on active and passive voice. Definitions, examples, and the reasons that the active voice is the preferred voice in most cases. It offers a slide show with definitions, examples, when to use, forms of passive voice verbs, and practice for students changing active to passive sentences and the reverse. It also offers two videos: quick tips for voice choice [0:46], and a rap music video [2:10] about active and passive voice.

This lesson introduces periods and how they are used. This tutorial lesson shares a short screencast [3:08] with the lesson's content.