# Trig....

Discussion in 'Secondary Education' started by TxMaThTeAcHeR, Feb 15, 2011.

1. ### TxMaThTeAcHeRRookie

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Feb 15, 2011

So math teachers I need your opinions...
What are the chances that I could teach a class strictly on trig (sin, cos, tan, ect) for 12 weeks? We are on trimesters and I get to design my own classes, and wondering if that is an option? The kids I teach are a little bit lower than normal, and range anywhere from 9th grade to senior level math abilities. What do you think?

3. ### moparMultitudinous

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Feb 15, 2011

I've seen a year long trig class, so I think that this would be entirely possible.

Imagine the depth you could go into with real world applications of trig!

4. ### TxMaThTeAcHeRRookie

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Feb 15, 2011

That's what I was thinking... Do you happen to have a copy of a calendar or anything? I've taught basic trig, but not in depth stuff...

5. ### moparMultitudinous

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Feb 15, 2011

I didn't actually teach it, but it was offered in my high school when I went to school so long ago!

6. ### ArcticteacherRookie

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Feb 15, 2011

Completely possible

I feel the same way. My trig course was 18 weeks. I would include lots of the application of the trigonometric functions. That would also include some of the construction applications that may lead to some larger units or projects.

7. ### AliceaccMultitudinous

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Feb 21, 2011

There's an awful lot of trig you could include:

- Basic SOHCAHTOA stuff
- verbals, angle of elevation and angle of depression
- Right triangle problems where you have to find one side, say the hypotenuse of the large triangle, then use that side in a second adjacent triangle.
- Reference angles, CAST, trig with angles greater than 90 degrees
- Special angles: 30, 45, 60 degree values
- The unit circle and 0, 90, 180, 270, 360 degree values
- Law of Cosines
- Law of Sines
- Ambiguous Case
- Solving triangles
- forces
- Reciprocal trig functions
- Graphing trig functions
- Proofs of trig identities

Even Polar coordinates if you wanted to. It wouldn't be incredibly hard to fill up 12 weeks.

8. ### AliceaccMultitudinous

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Feb 22, 2011

Not that it's pertinent, but it just occurred to me to ask:

What are they learnng the other 2 trimesters?

9. ### AliceaccMultitudinous

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Feb 23, 2011

It would be fun to teach a trimester course on graphing an assortment of functions-- withOUT a graphing calculator.

Linear, Quadratic, Absolute Value, Square Root, Rational, Polynomial (LOVE those!), trig, conics, polar....

Or one on proofs:
- logic
- coordinate
- geometric
- trig
- inductive reasoning-- I always LOVED those too!

10. ### TxMaThTeAcHeRRookie

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Feb 23, 2011

Thanks Alice!!
See, what they have learned the other two trimesters could be whatever. They aren't nessicarily the same kids that I have had all year. I teach at an alternative high school, so their classes change - but the ones that have been in the same two hours have been learning about geometry or graphing - so some exposure. Their abilities range anywhere from basic algebra to advanced algebra 2... so I need to make sure it can be differentiated for everyone.

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