Curated OER
Studying Special Segments in Triangles
Students investigate special segments in triangles. In this geometry lesson, students graph, compare, estimate and predict findings based on their data. They differentiate between similarity and congruence of triangles.
Curated OER
The Lunar and Terrestrial Tug of War
Fourth graders, in groups, locate, comprehend, interpret, and evaluate information about celestial bodies that influence ocean tides on Earth. They apply this information through graphic representations.
Curated OER
Measurement
Fifth graders measure specified distances when given perpendicular lines. In this measurement lesson plan, 5th graders draw the lines themselves.
Science Struck
Science Struck: How to Use a Protractor to Measure and Draw Angles
Step-by-step instructions accompanied by illustrations that demonstrate how to use a protractor to draw angles and to measure angles.
Math Is Fun
Math Is Fun: Using a Protractor
Students learn how to construct and measure angles using a protractor and ruler. The resource consists of a video demonstration and exploration activity.
Sophia Learning
Sophia: Measuring Angles With a Protractor
Students learn how to measure angles with a protractor. Detailed examples are included in the video lesson.
Homeschool Math
Homeschool Math: Measuring Angles With a Protractor
This geometry lesson and video explain angle measure, how to measure angles with a protractor, and has varied exercises for the students.
Khan Academy
Khan Academy: Review: Measuring Angles Review
Demonstrates how to use an interactive protractor to measure angle size. Includes three practice questions and explanations of their solutions.
Math Planet
Math Planet: Geometry: Measure and Classify an Angle
Explains the terms and symbols used to discuss line angles, what an angle is, and the types of angles. Includes short video lesson demonstrating how to use a protractor to measure an angle. [0:57]
CK-12 Foundation
Ck 12: Geometry: Angle Measurement Grade 6
[Free Registration/Login may be required to access all resource tools.] Learn how to use a protractor to draw angles.
BBC
Bbc: Bitesize: Math: Angles
What is an angle? Read about and see examples of the three different types while learning how to use a protractor. Links to an online game and an interactive quiz.
Science Buddies
Science Buddies: Using Laser Pointer to Measure Data Track Spacing on C Ds, Dv Ds
You've probably noticed the colorful patterns "reflecting" from the shiny surface of a CD disk. What you are seeing is actually diffraction of white light, and the rainbows of color are diffraction patterns. In this project you'll learn...
Math Open Reference
Math Open Reference: Angles
Everything you wanted to know about angles and more, including 1) how to measure angles 2) types of angles 3) angle relationships and 4) angles around a transversal.
TeachEngineering
Teach Engineering: Topo Triangulation
In this activity, students will learn how to read a topographical map and how to triangulate with just a map. True triangulation requires both a map and compass, but to simplify the activity and make it possible indoors, the compass...
Purple Math
Purplemath: Greek Letters and Their Names
When you are working with geometry and trigonometry, you will see a lot of Greek letters. It will be helpful to know how the names of these letters are spelled and pronounced.
Homeschool Math
Homeschool Math: Parallel and Perpendicular Lines
This lesson explains what are parallel and perpendicular lines and includes varied exercises and a video that shows how to draw a perpendicular line and a rectangle using a protractor or a triangular ruler.
Fundación Cientec
Cientec: Herramienta Triangular Para Medir Ingulos:transportador
How to measure angles by using a piece of a square paper. Step by step instructions are provided.