Curated OER
The Tilting Earth
Fourth graders use a styrofoam ball on a stick to represent earth and a light bulb in the center of the room to represent the sun. They walk around the light, holding their sticks at an angle to show the tilt of the earth's axis. They...
Curated OER
Triangle and Circle Trigonometry
In this Pre-calculus/Trigonometry worksheet, students apply advanced triangle and circle trigonometry to solve application problems. The three page worksheet contains sixteen problems. Answers are not included.
Curated OER
Pike's Peak Problem
In this algebra activity, students answer a word problem about a distance-rate multiplied by times problem. They discuss slope and altitude. There is an answer key with this problem.
Curated OER
Work and More Work
In this science instructional activity, students classify 6 actions as positive work, negative work, or no work. Students also design their own experiment.
Curated OER
Related Rates
In this algebra worksheet, students rewrite word problems using algebraic symbols and solve for the related rates. There are 10 word problems involving derivatives and rates.
CK-12 Foundation
Ck 12: Trigonometry: Angles of Elevation and Depression
[Free Registration/Login may be required to access all resource tools.] Find distance using right triangles and angles of elevation or depression.
Khan Academy
Khan Academy: Angles of Elevation and Depression
Learn what the terms angle of elevation and angle of depression mean. The words may be big but their meaning is pretty basic!
Purple Math
Purplemath: Angles of Inclination and Declination
Explains the terminology for angles of elevation, depression, inclination, and declination. Demonstrates how to 'translate' exercises into triangles and equations.
Analyze Math
Analyze Math: Applications and Use of the Inverse Functions
Learners explore applications of inverse functions. Topics investigated are angle of elevation, range, and right circular cones. The activity includes examples on uses of inverse functions in real situations with detailed solutions.
Clark University
Clark University: Dave's Short Trig Course: Tangents and Slopes
Explains what "tangent" is and its role in the right triangle. Slope of a line is investigated and tangent for special common angles is given. Angle of elevation and angle of depression are also covered here.
Exploratorium
Exploratorium: Ilion High: Build a Clinometer
Instructions for building a clinometer are given on this page. Clinometers can be used to measure the angle of elevation of a right triangle, and in turn find the height of large objects.
Texas Instruments
Texas Instruments: Solving Problems Using Trigonometry
Solving real life problem using trig ratios. Example: Finding the angle of elevation or the angle of depression. Finding the angle between two lines. Finding equation of a line that passes through two points.
Interactive Mathematics
Interactive Mathematics: The Right Triangle and Applications
Learn how to "solve" a right triangle and apply the concept to real world situations using angles of elevation and depression.
McGraw Hill
Glencoe Mathematics: Quiz on the Application of Trigonometric Functions
The online assessment demonstrates knowledge of advanced mathematical concepts in Algebra II. The questions test students on the application of trigonometric functions.
Texas Instruments
Texas Instruments: Numb3 Rs: Telling Time With the Sun
Based off of the hit television show NUMB3RS, this activity is a very basic introduction to the tangent function and it's applications (such as measuring distances). Through this lesson, students will learn the definition of the tangent...
Other
Elms Environmental Education Center: How to Use a Clinometer
Offers instructions in how to use a clinometer, an instrument used by foresters for measuring angles in order to determine the height of a tree. The mathematics behind a clinometer is also explained.
Other
Instructables: Using a Clinometer to Measure Height
Explains step by step, supported by pictures, how to use a clinometer to measure the height of a tall object.
Windstream
Ojk's Precalculus Study Pages: Solving Right Triangles
An introduction to all six trigonometric function in the setting of right triangles. This tutorial begins with the six definitions and goes through applications involving angles of elevation and angles of depression. Includes several...
CK-12 Foundation
Ck 12: Geometry: Trigonometry Word Problems
[Free Registration/Login may be required to access all resource tools.] Use trigonometry to solve word problems.