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Trigonometry

SOH CAH TOA song







Lessons calendar



Learning Objectives Work Material

TRIGONOMETRY
  CRITERIA

SAMPLE
 
Pythagoras

 
EGIPTIANS AND PYTHAGORAS

APPLICATIONS 


PYTHAGORAS IN 3D

Why do we need trigonometry?

 
 WHY TRIG?
 
Similar triangles

  
SHADOW OF THE TREE PROBLEM

 From similar triangles to ratios

  
 
SOH CAH TOA

  

Finding missing angles
  

 CLINOMETER

 
Finding missing lenghts

  

Construct a clinometer and use it
to estimate heights of buildings

  

Applications of right-angles triangles:

angles of elevation an depresion

  
 

 Applications of right-angles triangles:

area of a triangle