Sunday, March 29, 2015

FourFive and Knowing Two of Three

FourFive Addition to  Trigonometry Playlist
It still doesn't feel like spring!  In response to a student request to add FourFive Seconds to the Trig. playlist, consider it added.  However, I originally thought I heard "Forty-Five" which connected to 45 seconds per minute loosely relating the lyrics to Trig.   Forty-Five clock seconds representing 3pi/2 radians of a turn of course.  But since Paul McCartney is involved we can add it to the playlist.

Two of Three
If I had to choose one number theme to relate FourFive to what we learned last week to what we will learn this week it is two of three.  In simplest terms, if you can identify Two of Three math facts in a word problem, you typically can connect to the elationship (Formula) you need to apply.    
                   
Typical Problems from Last Week:
                         Know:  Angle in Radians and Radius           Want:  Arc Length      
                         Know:  Rotations and Time                           Want:  Angular Speed    
                         Know:   Angular Speed and Radius               Want:  Linear Velocity

Two of Three Examples you will see this week:

Given a Triangle:                                                        
Know:  An OPPOSITE and HYPOTENUSE
Want:  The SINE of the Angle

SOH CAH TOA.  There is even a two of three mnemonic
to help you make decisions for basic trigonometry. 

Note:  SOH CAH TOA should be familiar from previous classes.   If it is not, I strongly recommend you visit Khan Academy (or another site) for basic trigonometry review.  https://www.khanacademy.org/math/trigonometry/basic-trigonometry  view first video and example.

More Additions to the Playlist
"So What'cha Want" to inspire you to show your work
 https://www.youtube.com/watch?v=RWfqPIyU9Zw

"My Shirona" because it sounds like the mnemonic SOH CAH TOA
https://www.youtube.com/watch?v=g1T71PGd-J0

"The Logical Song"  because you need to know radical form
https://www.youtube.com/watch?v=fBoYZqmcZuc  
and because classic music videos are a lost art form.

Sunday, March 22, 2015

What Time is it! Time for My Three Songs.

Happy Spring!

It has been a while since we made musical connections to our class content
(see Missy Elliot in February or of Course Sade’s Smooth Operator in Quarter2).

 Before Pandora, Spotify, and itunes, some radio stations used to play “My Three Songs” and listeners had to guess what they had in common.  These three songs have circles in common!  Here are your three Trig. Songs for the week and 6 extra credit opportunities.

 Note:  You may respond for extra credit one time and be the first commenter/not duplicate someone else’s response to earn credit (read blog comments section before responding).

To clarify who you are and get credit, write your response in the comments section.
e.g. The Artist is Sade! and note that is sounds like “Gaudet” - grs


 Unit 6 Trig. Tune
Extra Credit Task
You Spin me Round  (Like a Record) https://www.youtube.com/watch?v=PGNiXGX2nLU
+5% to this week’s quiz.
(name this artist in comments below)
 
+10% to this week’s quiz State 3 unique “circle facts” that relate to learning target 1.
The Spin Doctors What time is it?  https://www.youtube.com/watch?v=eqS5pJDX5j4
+5% State the time/name the album. 
 
+10% State the angle measurement between the hands in radians.  Exact
BHTM Circle
+ 5% Name the Band and state where the lead singer is from.
 
+10%  Explain what co-terminal means and provide an example of two coterminal angles

This is unconventional way to earn credit, but the time is now Spring and we have to mix things up.  Plus, we need more two-way communication and this is one way to implement a blog.  Also, recall that I did ask you to follow this blog earlier in the year.  I may reward the followers.  My Seniors, hang in there we are not done yet.

 
One New Helpful Resource

I created a google document that will be updated as new material is assigned.  The document can be view here:


 
Note the 6.1d has not been assigned as of Sunday and E-Period has not received the ASMT2 Handouts yet.