Homeschool Math
Homeschool Math: How to Construct an Altitude to a Triangle
Exercises explain how to construct an altitude to a triangle.
University of Georgia
University of Georgia: Inter Math: Altitude of 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...
Texas Instruments
Texas Instruments: Concurrent Lines, Medians, and Altitudes With Cabri Jr.
An introduction to concurrent lines, medians, and altitudes using Cabri Jr.
American Institute of Biological Sciences
Action Bioscience: The Challenge of Living at High Altitudes
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...
University Corporation for Atmospheric Research
Ucar: Change in the Atmosphere With Altitude
How does the atmosphere change as you go up high in the sky?
CK-12 Foundation
Ck 12: Altitudes: Orthocenter
[Free Registration/Login Required] Students will use the interactive riangle and points to explore altitudes such as the orthocenter. Click learn more to watch a video and click challenge me to answer a practice question.
Science Buddies
Science Buddies: Gigantic Triangles: Measuring Altitude (Inclinometer)
If you've ever wondered how tall that bridge is, or how high your kite was, then this could be a good project for you. You'll learn how you can use the mathematics of right triangles to measure the height of an object with two...
NASA
Nasa: Rockets Educator Guide: Launch Altitude Tracker
This lesson plan allows student to make a launch altitude tracker. Student will use a sighting tube and angle measurements to track the altitude of rockets that are launched.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Triangle Altitudes
Here at the Math Forum, Dr. Math proves the concurrency of the altitudes of a triangle. Links are provided for associated topics.
Texas Instruments
Texas Instruments: Simple Constructions With Cabri Jr.
The Cabri Jr. Constructions Tools Menu (F3) contains tools for contructing geometric objects. This activity provides practice using several of the tools. The activity also investigates the terms: median of a triangle and the altitude of...
TED Talks
Ted: Ted Ed: High Altitude Wind Energy From Kites!
In this brief talk, Saul Griffith unveils the invention his new company Makani Power has been working on: giant kite turbines that create surprising amounts of clean, renewable energy. [5:22]
University of Georgia
University of Georgia: Altitudes & Orthocenters: Making Connections
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Math Words
Math words.com: Altitude of a Triangle
This site provides a definition of what the altitude of a triangle is. It also provides a diagram.
University Corporation for Atmospheric Research
Ucar: High Altitude Observatory: Tycho Brahe (1546 1601)
This site contains information about Brahe's contributions to astronomy, and also discusses his planetary model.
Cut the Knot
Cut the Knot: Existence of the Orthocenter
This site defines the altitude of a triangle and gives the standard notation for altitudes of a triangle. The site then goes to list several proofs involving altitudes and orthocenters.
Oswego City School District
Regents Exam Prep Center: Concurrence
Find resources for class instruction on concurrence: a lesson on concurrence of medians, altitudes, angle bisectors, and perpendicular bisectors complete with definitions and example diagrams; a six-question practice quiz; and...
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Local Coordinates Model
This astronomy simulation presents stars in their Altitude/Azimuth coordinates serving as an introduction to the celestial globe and equatorial coordinates.
PBS
Pbs: Everest
The companion web site to NOVA programs on Mt. Everest: Lost on Everest, High Exposure: Humans at Altitude, Climb, History and Culture, Earth, Wind, and ice, Previous Expeditions, and Resources.
OpenStax
Open Stax: Variation of Pressure With Depth in a Fluid
From a chapter on Fluid Statics in a Physics textbook. This section of the chapter looks at the relationship of weight, depth, density, and altitude to pressure. Includes questions, problems and exercises.
Texas Education Agency
Texas Gateway: Variation of Pressure With Depth in a Fluid
By the end of this section, you will be able to define pressure in terms of weight, explain the variation of pressure with depth in a fluid, and calculate density given pressure and altitude.
TeachEngineering
Teach Engineering: I Can't Take the Pressure!
Students develop an understanding of air pressure by using candy or cookie wafers to model how it changes with altitude, by comparing its magnitude to gravitational force per unit area, and by observing its magnitude with an aluminum can...
Cuemath
Cuemath: Median of a Triangle
This lesson explores the equation of the median of a triangle formula, sum of medians of a triangle, altitude of a triangle, median of equilateral triangle formula, and median of a triangle definition while discovering the interesting...
University Corporation for Atmospheric Research
Ucar: Virtual Ballooning to Explore the Atmosphere Activity
In this computer-based virtual lab, students will learn about the layers of Earth's atmosphere by launching virtual balloons to collect temperature and pressure data at various altitudes. Given a limited number of balloon flights,...
American Geosciences Institute
American Geosciences Institute: The Weather at High Altitudes
Learn about the air and weather that happens high up in the atmosphere.
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