Trig is easy to defend! Any physical situation where two actors don't meet at right angles or are parallel requires trig. This include virtually any realistic mechanics problem (cars on hills, the trajectory of a baseball or rocket, bridge design, road design, TV picture tube design, etc.) and many optics problems (sunlight falling on the earth, for instance). Taken a step further, understanding many kinds of motion and vibration (sound, light "waves", vibration of guitar strings, etc.) depends upon the "sine wave" - the solution of a differential equation for simple harmonic motion.
______________________________ Reply Separator _________________________________ Subject: Why trig? Author: firstname.lastname@example.org at Internet Date: 3/31/97 12:55 PM
You are teaching a group of skeptical high school students trigonometry and they need to know "Why do we learn Trigonometry?"
Unacceptable answers: 1. It's the next unit in the book. 2. The curriculum committee says you have to. 3. It's on the SAT. 4. Mathematicians find it "elegant." 5. In case you ever need to know the height of a flag pole.