Investigate the sum of the angles in a triangle and a quadrilateral using various methods. 0606.4.1

Links verified on 1/03/2010

1. Quadrilaterals
   1. Construction of Bicentric Quadrilateral - a mathematical droodle
   2. Interactive Quadrilateral - drag the dots or
   3. Practice With Quadrilaterals - a twelve question quiz with drawings [This expired page is brought to you by the Internet archive, the Wayback Machine.]
   4. Quad Squad - a quick lesson on classifying and describing quadrilaterals
   5. Quadrilateral Family - from regents prep [This expired page is brought to you by the Internet archive, the Wayback Machine.]
   6. Quadrilateral Matching - concentration style quiz
   7. Quadrilateral Quest - interactive lesson, drag and drop activity or
   8. Quadrilateral Sorter - click on a shape to find out about it
   9. Quadrilaterals - a sixteen slide PowerPoint show
   10. Quadrilaterals - a twenty-six slide PowerPoint show produced by Holt, Rinehart and Winston
   11. Quadrilaterals II - a twenty-eight slide PowerPoint show
   12. Quadrilaterals Explained - from Math is Fun or
   13. Quadrilaterals Quiz - six multiple choice questions
   14. Quadrilaterals - explanation, examples and questions to answer
   15. Quadrilaterals - a wikipedia entry with a large number of drawings
   16. Shapes: Quadrilaterals - explanation and questions to show understanding
   17. What's My Quadrilateral - three different teaching ideas [This expired page is brought to you by the Internet archive, the Wayback Machine.]
2. Triangles
   1. Angle Classification: Acute, Right, Obtuse - explanation and questions to answer
   2. Angles - Students practice their knowledge of acute, obtuse and alternate angles.
   3. Angles - game to help recognize angles or
   4. Angles - a twenty slide PowerPoint show with a quiz to be used as a whole class activity
   5. Basic Geometric Figures - a TAKS worksheet to print and use in class
   6. Classifying Angles - multiple-choice quiz [5 questions]
   7. Equilateral, Isosceles, and Scalene Triangles - choose the most restrictive term
   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 - use a virtual protractor
   11. Measuring Angles - Practice lining up and reading a protractor while you measure a set of angles in a fun learning activity or
   12. Names of Angles - definition and drawings of each type or
   13. Making Triangles - investigating the Concept of Triangle and the Properties of Polygons (from NCTM)
   14. Triangle Identification - type of triangle, given its angles - instruction and review, practice, and a quiz and
   15. Right, Acute, and Obtuse Angles - sort angles into appropriate containers or
   16. Right, Acute, and Obtuse Angles - figures are shown, decide which is the proper angle
   17. Squaring the Triangle - learn about how the Pythagorean Theorem works, through investigating the standard geometric proof. Parameters: Sizes of the legs of the triangle.
   18. Triangle Calculator - Enter values three of the six sides and angles of the triangle and the other three values will be computed. The number of significant values entered will determine the number of significant figures in the results.
   19. Triangle Explorer - Students learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid.
   20. Triangle Identification - identify the triangle given its angles - instruction and review, practice, and a quiz and
   21. Triangle Identification - identify the triangle given its number of sides - instruction and review, practice, and a quiz and
   22. Triangles Side-By-Side - use geometric vocabulary to describe properties of triangles
   23. Types of Angles - definitions, and drawings of each type
   24. Spy Guys Interactive - Working with Angles - Lesson 16
   25. Virtual Protractor - ten online activities investigating angles or