You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a statement that is both truth and false. Can you come up with the correct sentence and force the troll to release them? L.11-12.5a Figures of Speech

Self-control is something innate for some children, but for most it must be taught. This site relates self-control information regarding strategies, dealing with feelings, and being mad.

The ideal gas law is stated and explained at this site from the Towson University. It is then used to derive the other gas laws (Charles, Boyle's, Gay-Lussac's, Avogadro's, combined, etc.). Other gas law relationships are discussed. Sample problems illustrating the use of each gas law to solve problems are provided. Real gases and Van der Waals equation are also discussed.

This activity teaches students weather terminology, how to interpret weather data, and make a weather prediction based on that data.

Students will classify elements as metals, non-metals and metalloids based on their observtions of appearance, conductivity, malleability and reactivity with dilute acid. They will observe the location of these groups on the periodic table.

CK-12 Trigonometry Teacher's Edition provides tips and common errors for teaching CK-12 Trigonometry Student Edition. The solution and assessment guides are available upon request.

This interactive activity, from the Web site developed for the PBS series "Building Big," explores tunneling and the tools and methods used to do the job.

This activity is a guided investigation into the process of plate tectonics and resulting features. It's a look at the resulting effects which we see as volcanoes, earthquakes, and mountains.

This activity is an inquiry based field investigation where students measure and map a small stream and then develop an understanding of the formation of a variety of small stream features.

This activity is for an introductory oceanography course. It is designed to allow students to use various tools (satellite images, Google Earth) to explore the shape of the sea floor and ocean basins in order to gain a better understanding of both the processes that form ocean basins, as well as how the shape of ocean basins influences physical and biological processes.

This activity allows students to investigate classification and create their own dichotomous key. Discussion will include classification of items in everyday life.

Students will utilize factually observed or researched information in a creative high interest-writing project.

Students work in groups to find a "treasure" using a treasure map with directions written in vector format.

This video segment adapted from "Building Big" outlines the step-by-step design process used by engineers. Includes background reading, discussion questions, and teaching tips. [4:50]

This activity is a lab investigation/teacher directed inquiry, in which a student discovers the pathway of an electric current from a battery source, through a light bulb's inner structure, and then back to the battery source to complete a simple circuit.

Problem solving is a key aspect of many kinds of jobs. Employees and managers in several industries give examples of problem solving in the workplace.

Students learn about trigonometry, geometry and measurements while participating in a hands-on interaction with LEGO® MINDSTORMS® NXT technology. First they review fundamental geometrical and trigonometric concepts. Then, they estimate the height of various objects by using simple trigonometry. Students measure the height of the objects using the LEGO robot kit, giving them an opportunity to see how sensors and technology can be used to measure things on a larger scale. Students discover that they can use this method to estimate the height of buildings, trees or other tall objects. Finally, students synthesize their knowledge by applying it to solve similar problems. By activity end, students have a better grasp of trigonometry and its everyday applications.