Classify triangles by side lengths (scalene, isosceles, and equilateral) and angle measure (acute, right, obtuse, isosceles and equiangular). 0606.4.4

Links verified on 1/03/2010

1. Acute One Or An Obtuse One? - [grades 5-8] six page worksheet to print and use in class [this link points to an archived file provided by the Wayback Machine. This site is blocked by some filters so you might want to download a copy at home]
2. Angle Classification: Acute, Right, Obtuse - explanation and questions to answer
3. Angles - Students practice their knowledge of acute, obtuse and alternate angles.
4. Angles - Interactive game to help recognize angles.
5. Angles - a twenty slide PowerPoint show with a quiz to be used as a whole class activity
6. Basic Geometric Figures - a TAKS worksheet to print and use in class
7. Classifying Angles - five multiple choice questions
8. Geometry Building Blocks: Classifying Angles - explanation and drawings
   1. Examples to go with the lesson above
   2. Quiz to follow the lesson
9. How Do We Measure Angles? - six page worksheet to print and use in class
10. Measuring Angles - Practice lining up and reading a protractor while you measure a set of angles in a fun learning activity or
11. Measuring Angles - use a virtual protractor or
12. Names of Angles - definition and drawings of each type or
13. Right, Acute, and Obtuse Angles - sort angles into appropriate containers or
14. Right, Acute, and Obtuse Angles - figures are shown, decide which is the proper angle
15. Triangle Explorer - Students learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid.
16. Triangles Side-By-Side - use geometric vocabulary to describe properties of triangles
17. Types of Angles - definitions, and drawings of each type
18. Spy Guys Interactive - Working with Angles - Lesson 16
19. Virtual Protractor - ten online activities investigating angles or