Handout
Oswego City School District

Regents Exam Prep Center: Geometry Vocabulary Resources

For Students 9th - 10th
A list of geometry definitions and a matching activity.
Primary
PBS

Pbs: Frontline World Story: Kenya Run, Lornah, Run

For Students 9th - 10th
This PBS Frontline world story is about a Kenyan world class runner. The runners name is, Lornah Kiplagat, and she uses her prize money to fund a high altitudes training center in Kenya. Her facility provides women with an opportunity to...
Unit Plan
Wolfram Research

Wolfram Mathworld: Isosceles Triangle

For Students 9th - 10th
MathWorld explains what an isosceles triangle is and how it compares with equilateral, and scalene triangles. The altitude and area of these triangles are also discussed.
Activity
Science Education Resource Center at Carleton College

Serc: Applicable Stoichiometry: Combustion Reaction of Acetylene

For Students 9th - 10th
In this chemistry lab, students investigated the best stoichiometric mixture of acetylene gas generated from the reaction of calcium carbide and water with available atmospheric oxygen in order to achieve the highest group altitude of a...
Activity
PBS

Pbs Teachers: Test Your Brain

For Teachers 9th - 10th Standards
Investigate the effect of oxygen deprivation on brain function and test the changes in mental abilities climbers experience as they climb to ever-higher altitudes, in this virtual experiment.
Article
San Diego State University

Coaching Science Abstracts: Volumes

For Students 9th - 10th
Technical journal's articles discuss issues in training and nutrition, with such topics as altitude training and psychological activity.
Unit Plan
Wolfram Research

Wolfram Math World: Right Triangle

For Students 9th - 10th Standards
This site from MathWorld.com offers extensive information on right triangles. The site contains information on numerous characteristics of right triangles, including constructing similar inscribed triangles, altitudes, Pythagorean...
Handout
Wolfram Research

Wolfram Math World: Equilateral Triangle

For Students 9th - 10th Standards
MathWorld goes into detail about equilateral triangles at this site. Use this site to find out how to construct an equilateral triangle using a compass and straight edge. Learn about the altitude of such triangles, and the rationality of...
Unit Plan
BBC

Bbc: Bitesize: Rectilinear Shapes

For Students 9th - 10th Standards
Find the gradient, equations and intersections of medians, altitudes and perpendicular bisectors using our knowledge of the mid-point as well as parallel and perpendicular lines.
Handout
CK-12 Foundation

Ck 12: Geometry: Right Triangle Similarity Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] An overview of altitudes and geometric mean is provided in this study guide.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Graphic
Curated OER

Altitudes & Orthocenters: Making Connections...

For Students 9th - 10th
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Handout
University Corporation for Atmospheric Research

Ucar: High Altitude Observatory: Aristarchus of Samos (310 230 Bc)

For Students 9th - 10th
A brief biography and discussion of Aristarchus' theories provided here.

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