 Functions and Applications 11 Wayne Erdman,
Toronto District School Board Steve Etienne,
District School Board of Niagara John Ferguson,
Lambton Kent District School Board David Lovisa,
York Region District School Board Roland W. Meisel,
Port Colborne, Ontario Jacob Speijer,
District School Board of Niagara
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Internet Connects
Trigonometry Applications with Right Triangles and Ratios
| http://www.slidermath.com/rpoly/Trigapps.shtml | | Game with sound [a multiple choice set of questions dealing with application of regular trig] providing practice with use of trig ratios. (
http://www.slidermath.com/rpoly/Trigapps.shtml
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Trigonometry - maths online Gallery
| http://www.univie.ac.at/future.media/moe/galerie/trig/trig.html#dreieck | | Trigonometry Applet: Triangle and the Law of Sines.
This applet allows the user to drag the vertice of an acute triangle and reports the measures of sides and sines of angles. It also shows the ratios of a side with the appropriate angle to see that they are all equal ratios. It plays out like a GSP sketch already preformed. (
http://www.univie.ac.at/future.media/moe/galerie/trig/trig.html#dreieck
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Sine Law
| http://argyll.epsb.ca/jreed/math9/strand3/sine_law.htm | | This interactive demo shows a triangle with measures of angles and sides displayed. It allows the user to drag a vertex of a triangle and view the formula for the sine law with the data inputted. (
http://argyll.epsb.ca/jreed/math9/strand3/sine_law.htm
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Cosine Law
| http://argyll.epsb.ca/jreed/math9/strand3/cosine_law.htm | | This interactive demo shows a triangle with measures of angles and sides displayed. It allows the user to drag a vertex of a triangle and view the formula for the cosine law with the data inputted. (
http://argyll.epsb.ca/jreed/math9/strand3/cosine_law.htm
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The Cosine Law
| http://www.coolschool.ca/lor/AMA10/unit7/U07L04.htm | | This website shows an example (SAS) using the cosine law devoid of context and shows a video of how the missing value was found with sound. (
http://www.coolschool.ca/lor/AMA10/unit7/U07L04.htm
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<b>The Sine Law<b>
| http://www.coolschool.ca/lor/AMA10/unit7/U07L03.htm | | This website shows two examples [finding a side, and finding an angle] using the sine law devoid of context, and shows a video of how the missing value was found with sound in each. (
http://www.coolschool.ca/lor/AMA10/unit7/U07L03.htm
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An Angular Point of View: A Photo Collection Illustrating the History of Theodolites at the National Geodetic Survey
(National Oceanic and Atmospheric Administration)
| http://celebrating200years.noaa.gov/theodolites/welcome.html#measuring | | Learn about the history of the theodolite and how it is used in this article about the National Geodetic Survey in the United States. (
http://celebrating200years.noaa.gov/theodolites/welcome.html#measuring
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