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.
Oswego City School District
Regents Exam Prep Center: Area of a Triangle and Parallelogram Using Trig
How can trigonometry be used to find the area of a triangle or parallelogram? Does the triangle need to be a right triangle, and how accurate can the results possibly be? The answers to these questions are found here along with several...
University of Georgia
University of Georgia: Inter Math: Exterior Angles
Intermath Dictionary's site defines terms relating to angles, gives examples, and offers interactive exercises.
Alabama Learning Exchange
Alex: Angles in the Mix
In this lesson, students explore straight, acute, and obtuse angles in artwork. Then students will use digital cameras to take pictures of objects in their environment that demonstrate these types of angles. Students will use these...
Scholastic
Scholastic: Study Jams! Math: Geometry: Classify Angles
Watch and learn how to classify angles then test your knowledge.
Homeschool Math
Homeschool Math: Lines, Rays, and Angles
This fourth-grade geometry instructional activity teaches the definitions for a line, ray, angle, acute angle, right angle, and obtuse angle. We also study how the size of the angle is ONLY determined by how much it has "opened" as...
OER Commons
Oer Commons: Four Types of Angles
In this lesson, middle schoolers learn about four types of angles: adjacent, vertical, supplementary, and complementary. They explore the relationships between these types of angles by folding paper, measuring angles with a protractor,...
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Angle Measure and Plane Figures
A guide to support parents as they work with their students in angle measure and plane figures.
E-learning for Kids
E Learning for Kids: Math: Pizza (Italian) Restaurant: Angles I
In this interactive website, students practice various math skills such as identifying different types of angles, use the degree symbol, estimate and measure angles, and construct angles.
The Math League
The Math League: Obtuse Angle
This tutorial on angles gives a basic definition of obtuse angles.
Quia
Quia: Irregular Plurals
Produced by Quia, to allow the user to take an eleven question quiz reviewing different types of angles.
Quia
Quia: Introduction to Angles
Use this website to practice angle definitions using a matching game format.
Quia
Quia: Introduction to Angles Flashcards
Use this website to practice angle definitions using a flash card format.
Quia
Quia: Introduction to Angles Concentration
Use this website to practice angle definitions using a concentration game format.
Quia
Quia: Introduction to Angles: Word Search
Use this website to practice angle definitions using a word search format.
Math Is Fun
Math Is Fun: Obtuse Angles
This very basic website gives a clear, simple explanation of what an obtuse angle is.
ClassFlow
Class Flow: Angle This Way
[Free Registration/Login Required] Students will identify right, acute and obtuse triangles using many interactive tools available in ACTIVstudio 3.0. Students will be engaged using a magnifier tool, the fill tool, and drag and drop and...
Quia
Quia: Spanish 2 Final Exam Review 2003
You can assess your knowledge of the various parts of angles and lines at this web site. You respond to a series of questions. A running total is visible showing the number of correct responses you have as you work your way through the...