# 051 - SingAlong: "Walkin' Around Unit Circles"

Math-Tans present....

"Walkin' Around Unit Circles"

(*aka "Rockin' Around the Christmas Tree")

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Original by Johnny Marks; sung by Brenda Lee (age 13 in 1958). *

Walkin' around, unit circles,

Doing trigonometry.

Use (cos, sine), we'll all agree.

Special angles we should bring.

Degrees depart, when there's two pi,

And we fraction everything.

Sine will give half and root half, for sixths and, fourths of pi,

Third of pi means root three quarters.

Cos? We can, reverse pi orders.

Spinning around, unit circles,

Finding slope for all the tans.

Taking care if there's negatives,

As we finalize trig plans.

(Sax solo) Sine will give half and root half, for sixths and, fourths of pi,

Third of pi means root three quarters.

Cos? We can, reverse pi orders.

Spinning around, unit circles,

Finding slope for all the tans.

Taking care if there's negatives,

As we fin-al-ize trig plans!

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Previous XMas Specials:

2020: "Solving for Unknowns" ; 2019: "Three Things of Math" ; 2018: "Sequenced" ; 2017: "Triangles Rock" ; 2016: "Do We Have a Square Here?" ; 2015: "Like a Bell" ; 2014: "Polar Plot"; 2013: "O Factor Tree" ; 2012: "A Squared Song" ; 2011: "Decimal"