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## Compare angles, side lengths, perimeters and areas of similar shapes. 0706.4.4

1. Alien Angles - estimate angles, without a protractor, ranging from 1-180 by dragging a movable line or 2. Angles in a Triangle - interactive applet with several examples [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.] or 3. Area Explorer - Students are shown shapes on a grid after setting the perimeter and asked to calculate areas of the shapes. 4. Banana Hunt -This game helps students practice the degrees of an angle or  5. Calculate the Perimeter of the Rectangle - from FunBrain 6. Complementary Angles - Match the angles that are complementary. (a Quia game available in Matching, Flashcards, and Concentration format) 7. Finding the Third Angle of a Triangle - instruction, practice problems and a game 8. Geometric Terms - this Quia quiz contains four activities - matching, flash cards, concentration, and a word search puzzle - which reinforce students vocabulary concerning angles. 9. Introduction to Angles - Basic terms related to the classification of angles (a Quia game available in Matching, Flashcards, Word Search, and Concentration format) 10. Lesson on Perimeter of Polygons - several examples are given before five fill-in-the-blank questions 11. Measuring Angles - quiz with virtual protractor  or 12. Measuring Around - find circumferences and perimeters in this five question quiz 13. Oblique Triangles - from Dave's Short Trig Course
14. Perimeter Explorer - Students are shown shapes on a grid after setting the area and asked to calculate perimeters of the shapes. 15. Perimeter of a Rectangle - Calculate the perimeter of a rectangle with given dimensions - instruction and review, practice, and a quiz and 16. Perimeter of a Square - Calculate the perimeter of a square with given dimensions - instruction and review, practice, and a quiz and 17. Protractor - learn how to position and read a protractor in order to measure an angle, and how to use either scale on the protractor or 18. Right Triangle Calculator - choose the known side then click on the calculate button 19. Right Triangles - from Dave's Short Trig Course
20. Triangle Calculator - four different calculators 21. Triangle Calculator - enter values three of the six sides and angles of the triangle and the other three values will be computed 22. Types of angles and pairs of angles - good illustrations [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
23. Using Spreadsheets to Find Area and Perimeter - The cells of a spreadsheet are a useful way to represent area and perimeter. 24. Working With Angles - video lesson featuring the Spy Guys 25. Working with Angles - ten questions which deal with angles, answers are in pull-down boxes [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.] Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles. 