1. What better way to instantly capture the students' attention than showing a video of an actual tornado devastation. Select a tornado video that has no scientific narration--just the pure, raw tornado occurrence (please select a video that has no sensitive/traumatic scenes).
2. Ask the students what they just saw. Once you have elicited answers, start a show of hands as to how many in class have witnessed an actual tornado, or have had a personal experience on tornado devastation.
3. Tell them that tornadoes are very strong, unpredictable weather phenomena and that everyone should know what they really are, how strong they can get, how to prevent being devastated by them.
4. Show the class scientific videos of how a tornado is formed. You may also want to make a slide show of your own, with you acting as the narrator. The links at the end of this article under "Online Teacher's Resources" are very comprehensive and helpful as you discuss how, when, and where tornadoes are formed, how to measure their strength, and what to do in case your students suddenly find themselves near a tornado.
5. Have a slide show presentation of the Fujita scale, and give sample situations that will require them to predict what preventive or emergency measures they must do for each level in the scale.
6. Show another video of how a tornado leaves massive damage along its trail. Ask the class how they can help tornado victims in their own ways.
7. Tell the class that using their knowledge of tornadoes, they are to create information campaign posters about tornadoes and what to do when about to be hit by one. Show some sample infomercial posters that will serve as their guides and models.