Trigonometry

Trigonometry: A Practical Introduction

Trigonometry: A Practical Introduction presents an approach that involves the whole being of students so they develop clarity of thought and enthusiastic involvement in challenging, meaningful activities. The author advises that, when students work outdoors or are at at their desks measuring distances and angles, the topics being discussed are better understood. Topics include tight triangle calculations; oblique triangle calculations; surveying problems; and much more, with helpful notes and suggestions.

Contents include:

• Right Triangle Calculations
• Oblique Triangle Calculations
• Problems in Surveying
• and many other helpful notes and suggestions.

About the Author

Harry Kretz taught high school math for many years at Hawthorn Valley Waldorf School in New York. Since retiring from full-time work, he has worked more than full time traveling to teach courses for a few weeks at a time in various Waldorf schools and in teacher training centers.