1. Review of polygons.
http://www.mathsisfun.com/geometry/polygons.html
Answer questions 1-10 on the Your Turn section.
2. Review of angles.
http://www.oswego.org/ocsd-web/games/bananahunt/bhunt.html
3. Watch the video below. Answer the following questions:
1. Why is 360 degrees chosen as the measure of a full circle? Give two reasons from the video.
2. What angle do the hands of a clock make at 4:00?
3. Name the four types of angles demonstrated in the video (include the degrees).
4. Tell me one more thing you learned from the video.
http://www.artofproblemsolving.com/Videos/external.php?video_id=197
4, Animated Polyhedron Models/Nets
Explore the site below. When you are done manipulating the various shapes - create an octahedron. Use the net model.
http://www.mathsisfun.com/geometry/polyhedron-models.html
5. Nets
http://illuminations.nctm.org/Activity.aspx?id=3521
http://illuminations.nctm.org/Activity.aspx?id=3544
http://goo.gl/t0xFXx
6. Challenge Activity
http://www.infoplease.com/math/knowledgebox/player.html?movie=sfw41553
Tell me one more thing you learned from the video.
ReplyDeleteI learned why we use 360° instead of something like 100°, or 50°.
The reasons are, because we deal with the angles, 60°, and 45° so much, and those are 1 sixth of the way around (60°) and 1 eighth of the way around (40°). You also “can’t divide 100 by six, or by eight, and get an integer.”
That is all.
Thank you, thank you very much.
~Eileen
One more thing that I learned from the video is that the angle between each number on a clock is 30 degrees. This will probably come in useful in future word problems.
ReplyDeleteI meant "this will probably be useful."
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ReplyDelete4. A thing I learned from the video, is that in between two numbers in a clock is 30 degrees, so in between 4 and 5 for example, it is 30 degrees, and in between 4 and 6 its 60 degrees.
ReplyDeleteOne thing that I learned from this video is the reason that 360 is used as a full turn and not a number we see a lot like 100 or 250 because they cannot be divided by 6, 8, and 3 for example, but 360 can, and that’s one thing that I learned. ~Lucas
ReplyDeleteHi Ronan,
ReplyDeleteYou need to check your answer regarding the 360 degree question. Please repost.
4. Tell me one more thing you learned from the video.
ReplyDeleteI learned that the difference in the numbers on a clock are 30° each. Before I thought measuring the hands on a clock was hard, but with that information it is really easy.
~Ronan
I learned how to measure the difference between every combination of the clocks hands, because each hand is 30 degrees.
ReplyDelete