Series: Beginning Trigonometry, Sin Cos Tan Sec Csc & Cot

Kinda rudimentary

09/25/2009

~ jfilip

The actual word problems were kind of silly dealing with kites and whatnot but the math was solid and bringing it all together from the problem was helpful.

The teacher person has a monotone voice but following along with or without sound is actually very easy. So if you need trig practice I found it helpful.

Below are the descriptions for each of the lessons included in the series:

• Trig: Basic Trigonometry Part I, Sin, Cos, Tan 300

  This 77 minute trigonometry lesson is for the beginning trigonometry student or is a good refresher for anyone who has not recently studied trigonometry. The lesson reviews triangles, the Pythagorean theorem and the 3 promaary trig ratios (Sine, Cosine and Tangent. In this lesson you will be introduced to the concepts of trigonometry and learn how to:
  - name the parts of a triangle and recognize acute, obtuse and right angle triangles; isosceles, equilateral and scalene triangles; and similar triangles
  - use the Pythagorean Theorem, hypotenuse, opposite side and adjacent side soh cah toa
  - find the sin, cos and tan of any angle,
  - use your calculator for trigonometry
  - find the length of the sides in any right angle triangle
  - find the unknown angle in any right angle triangle
  - solve right triangles

  This lesson contains explanations of the concepts and 27 example questions with step by step solutions plus 6 interactive review questions with solutions.

  Lessons that will help you with the fundamentals of this lesson include:
  - 135 Solving Linear Equations Part I (http://www.mindbites.com/lesson/5068)
  - 160 Operations with Radicals (http://www.mindbites.com/lesson/5065)

• Trig: Word Problems - Sine, Cosine & Tangent 305

  This 78 minute trigonometry lesson is an opportunity to see how the skills learned in Lesson 300 Basic Trigonometry Part I are used to solving word problems using the 3 primary trig ratios, sin, cos and tan. You find unknown sides and angles in right angle triangles to solve word problems that involve:
  - a kite on the end of a string, diagonal of a rectangle, support wires, shadows, ladders, trees, buildings, stairways and more
  - angle of elevation and angle of depression
  - rise & run
  
  Sample problem: An airplane is flying over a forest at an altitude of 1600 ft. when the pilot sights a fire. He measures the angle of depression and finds it to be 46 degrees. How far is the fire, to the nearest tenth of a ft. from a point on land directly below the airplane?

  This lesson contains explanations of the concepts and 17 example questions with step by step solutions plus 3 interactive review questions with solutions.

  The following lesson will help you with the fundamentals of this lesson:
  - 300 Basic Trigonometry Part I (http://www.mindbites.com/lesson/5125)

• Trig: Basic Trig Part II Sec, Csc & Cot 315

  This 67 minute trigonometry lesson follows Lesson 300 Basic Trigonometry Part I to study the 3 reciprocal trig ratios, cosecant (csc), secant (sec) and cotangent (cot) or ctn. Special angles and exact value are also covered. This lesson will show you how to:
  - find the reciprocal ratios of an acute angle
  - use your calculator with cosecant, secant and cotangent
  - use cosecant, secant and cotangent to solve problems
  - work with special angles (30, 45 & 60 degrees) and exact values (values obtained without the use of a calculator)

  This lesson contains explanations of the concepts and 15 example questions with step by step solutions plus 4 interactive review questions with solutions.

  The following lesson will help you with the fundamentals of this lesson:
  - 300 Basic Trigonometry Part I (http://www.mindbites.com/lesson/5125)

Supplementary Files:

• Once you purchase this series you will have access to these files: