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To get more background on the Key Concepts of this chapter, type in one of the Key words from the table below into Yahoo Search and click "Search".
MORE INFORMATION
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Note: 1. Searching leaves this site. While I can guarantee the content on my own site, I have no way of controlling the content that you may find. 2. Be careful with your time - searching the web can consume large amounts of time. |
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KEY CONCEPTS |
KEY WORDS for Yahoo Search |
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KC3.1 - |
"sexagesimal" |
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KC3.2 - |
"trigonometric ratios" |
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KC3.3 - |
"Pythagoras' theorem" |
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KC3.4 - |
"proving trigonometric identities" |
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KC3.5 - |
"trigonometric identities" |
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KC3.6 - |
"unit circle" |
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KC3.7 - |
"circular trigonometry" |
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KC3.8 - |
"CAST", "trigonometric symmetry properties" |
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KC3.9 - |
"trigonometric graphs", "trigonometric functions" |
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KC3.10 - |
"cosine rule" |
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KC3.11 - |
"sine rule" |
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KC3.12 - |
"ambiguous case" |
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KC3.13 - |
"model trigonometry" |
| TECHLABS |
- Techlab 3.1 - angles as the rotation of a line about a point. (page 3-4)
- Techlab 3.2 - angles have a constant sine, cosine, and tangent ratio. (page 3-5)
- Techlab 3.3 - trig. ratios for 0o and 90o. (page 3-12)
- Techlab 3.4 - how the height of a thumbtack changes as a wheel rotates. (page 3-14)
- Techlab 3.5 - using a unit circle to find the trigonometric ratios. (page 3-15)
- Techlab 3.6 - trigonometric ratios for special angles 0o, 90o, 180o, 270o, 360o. (page 3-17)
- Techlab 3.7 - symmetry relationships in the unit circle. (page 3-18)
| ENRICHMENT |
- MIC 3.2 - Pythagoras' theorem. There are two java demonstrations of the theorem. Activity 2 gives some insight into how Pythagoras may have developed his proof.
- MIC 3.3 - Excellent java applet showing the graphs of trigonometric functions.
| PROJECT LINKS |
Online Mathematics Clubs
- NRICH Online Maths Club - FREE registration
- The Digital Education Network - FREE registration
- Texas Instruments - lots of activities and ideas for the Graphic Calculators.
- Cynthia Lanius
- Practical Uses of Math And Science Home Page
- Math Forum Internet Collection
- Interactive Mathematics Miscellany and Puzzles
- Score Mathematics
- MACTUTOR - the History of Mathematics site which provided much of the historical vignettes in the tutorial.
- David Joyce's History of Mathematics
- Euclid's Elements with interactive Java applets
- Euclid - The Thirteen Books of The Elements Second Edition - by Sir Thomas Heath - search "Heath".