Trigonometry

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= Concept Map = Flash

= Textbook= For NCERT Text book Please click here For TAMILNAADU Text book click here and here

=Additional Information=

Useful websites

 * 1) Trigonometry on wikipedia click here
 * 2) For more about trigonometry click here
 * 3) - fundamentalconcept of angle in trignometry this web describes trignometrical functions
 * 4) video on trignometry from youtube

Reference Books
For more detailof trigonometry see these trigonometry reference books.
 * 1) Text Book of Mathematics Preuniversity Karnataka Government
 * 2) Trigonometry, I.M. Gelfand, Mark Saul
 * 3) Trigonometry Refresher (Dover Books on Mathematics), A. Albert Klaf, Mathematics
 * 4) Schaum's Outline of Trigonometry, 5th Edition, Robert Moyer, Frank Ayres
 * 5) Trigonometry, 8th Edition, Ron Larson ($$$)
 * 6) Advanced Trigonometry, by C.V. Durell, A. Robson

= Teaching Outlines =

Learning objectives

 * 1) Understanding of how trigonometry is developed
 * 2) Understanding the contribution of Indians in the field of Trigonometry

Notes for teachers
Give information about the contribution of Indians in the field of Trigonometry to your children, it is developes interest in development of trigonometry.

Activities
Activity No.1 For History of Trigonometry click here Activity No.2 For History of Trigonometry slideshow click here

Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.

Activities

 * 1) Activity No #1
 * 2) Activity No #2

Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.

Activities

 * 1) Activity No #1
 * 2) Activity No #2

Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.

Activities

 * 1) Activity No #1
 * 2) Activity No #2

Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.

Activities

 * 1) Activity No #1
 * 2) Activity No #2

=Assessment activities for CCE=

= Hints for difficult problems =

Problem-1
prove that $$\frac{1-\tan^2 A}{1+\tan^2 A}=1-\sin^2 A$$ Solution of this problem click here

= Project Ideas =

PROJECT 1.
Calculation of angle of elevation Trigonometry is around us.In this project we will apply our knowledge of trigonometry to shadows in order to calculate the angle of elevation to the sun at different times of day.  Procedure of Project: To calculate the angle of elevation of the sun go through the procedure
 * Mesure your height and the length of the shadow you cast at two different times of day [at least 3 hours apart]
 * Record the times and measurements [with units]
 * Draw the right triangle in this scenario.
 * label the sides of your drawing with your mesurements and angle of elevation
 * Solve for the angle of elevation while clearly showing all your steps Note for teachers Don't forget that you need to do the procedure above twice for two different times of a day.

= Math Fun =

Usage

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