Middle schoolers discuss the causes of global warming. In this earth science lesson, students examine how global warming is connected to the arctic and world climate. They write a paragraph about their interconnection.

In this English worksheet, learners read "Indian Breaks Hot-Air Balloon Record," and then respond to 47 fill in the blank, 7 short answer, 20 matching, and 8 true or false questions about the selection.

In this English worksheet, students read "Indian Breaks Hot-Air Balloon Record," and then respond to 47 fill in the blank, 7 short answer, 20 matching, and 8 true or false questions about the selection.

In this ESL worksheet, students read the given article and its presented vocabulary throughout.  Students respond to 51 short answer, matching, true/false, and fill in the blank questions.    

In this geometry worksheet, 10th graders solve a  problem involving the possible lengths for the third side of a triangle given two sides and determine where the point of concurrency lies in relation to the triangle. The one page...

Fifth graders explore plant characteristics by viewing a flower and seed presentation. In this environmental adaptation lesson, 5th graders identify specific traits plants have in order to allow them to grow in different climates whether...

Explore the world of the altitude of a triangle in this mini-lesson including its definition, altitudes in different types of triangles, formulae, some solved examples, and a few interactive questions for you to test your understanding.

[Free Registration/Login may be required to access all resource tools.] Studies the effects of altitude and mountain ranges on weather and climate.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students properties of altitudes of triangles and how to apply them.

[Free Registration/Login may be required to access all resource tools.] Mountain ranges and the altitude of a region affects the climate.

[Free Registration/Login may be required to access all resource tools.] Apply the properties of altitudes.

This study guide on bisectors, medians, and altitudes covers key vocabulary, different theorems, and facts about the altitude and triangles. It is available for download with free registration.

[Free Registration/Login may be required to access all resource tools.] Atmospheric pressure and how it changes with increasing altitude, and how air pressure is used.

In this activity, you will construct special segments of a triangle named altitudes, medians, and angle bisectors, Using their definitions. You will look at how an altitude, a median, and an angle bisector divide the area of a triangle....

Get a visual and animated definition of the altitude(s) of a triangle from LearnAlberta.ca's Mathematics Glossary. [Requires Java.]

This resource provides information about the altitude theorem for equilateral triangles, in addition to links on related topics. Requires Java.

Learn about the altitude of a triangle with this handy reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

This interactive feature from the NOVA: "Surviving Denali" Web site details the variety of ways the body can fail while climbing a high-altitude peak.

The student will apply and prove the definition of similar triangles and identify and apply the relationships that exist when an altitude is drawn to the hypotenuse of a right triangle, including the geometric mean.

This site from Math World describes the altitude of a triangle, and shows how to find these altitudes using the parameter and positions of the vertexes and angles of the triangle. The site gives other interesting formulas involving the...

Exercises explain how to construct an altitude to a triangle.

This site gives a description along with a visual representation of the altitude of a triangle. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving...

An introduction to concurrent lines, medians, and altitudes using Cabri Jr.

Physical anthropologists are studying the ongoing evolution of modern humans. This article features research done on those living in high altitudes over thousands of years with the intention to discover things such as the role of natural...