Explore the world of acute triangles in this mini-lesson. Explores its properties, how to create it, and other interesting facts related to acute triangles.

This MathWorld site gives a short discussion on acute triangles with links to related terms and topics. The site offers a discussion on the least number of acute triangles to compose various polygons, and a discussion on the relationship...

Get a visual and animated definition of what an acute angle is, as well as examples of acute angles in the real world.

Get a visual and animated definition of what an acute triangle is, as well as examples of acute angles in the real world. [Requires Java.]

Learn about acute angles with this helpful reference tool. Provides a detailed definition, images, and an interactive activity that enhances further explanation. Includes links to related topics.

This is a comprehensive article from the American Family Physician journal about acute bronchitis and its treatments.

This site provides a list of links to information about Severe Acute Respiratory Syndrome (SARS). Content includes links to the latest news, information about the diesase, pictures and diagrams, prevention and screening information,...

Create an acute, right, or obtuse angle using a given vertex. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

For this lesson students will learn what determines whether an angle is acute, obtuse or a right angle.

[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with angles and must identify what type each is. An accompanying video demonstrates a sample problem. [2:10] A set of...

This very basic website gives a clear, simple explanation of what an acute angle is.

[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to classify triangles based on angle measures.

Read this passage and study the graphics to complete a five-question quiz on the Immunology of Acute vs. Chronic Inflammation.

This tutorial provides a basic definition and examples of acute angles.

The World Health Organization (WHO) provides detailed updates on the outbreak of SARS, as well as general information on what the virus is, how it spreads, and current travel warnings.

Definitions of different types of angles along with images and an interactive tool through which you can create acute, right, straight, obtuse, and reflex angles. View the parts of an angle, and learn the proper way to label angles.

[Free Registration/Login may be required to access all resource tools.] Classify angles as acute, obtuse, right or straight.

[Free Registration/Login may be required to access all resource tools.] Classify angles as acute, obtuse, right or straight.

The three types of angles, right, acute, and obtuse, exist in our everyday surroundings. Students find these angles using classroom items.

This upper elementary and middle school lesson plan introduces the concept of acute, obtuse and right angles. Also, as the lesson proceeds vertical, adjacent, alternate interior and alternate exterior angles are explored. Plenty of...

Students will create a variety of angles using the Geoboard APP. The teacher will use Screen Capture to display the angles created by the students and will lead a discussion on whether the angles are acute, right, or obtuse.

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.

On this site a viewer can learn about the different types of triangles, and categorized by either angles or sides. Tutorials are also included for interior and exterior angles of triangles. A teacher resource page includes a lesson plan...

Practice estimating the angle by sliding the blue "X" button up and down to open and close the angle. See how many aliens you can zap with the correct answer. Your total correct out of 10 is listed just below the problem.