Thursday, March 21, 2013

[GRIFFIN] Intro to Pre Calc vids for Thursday

GOOD MORNING!!  This is a video I made at 6:30 in the morning just for you all explaining what is going to happen in precalculus classes today.  Watch this one first then the other two.  Make sure you watch angular displacement and velocity first and then Linear velocity from Circles.  Enjoy guys, good luck and take notes.  Help each other with the problems.

Wednesday, March 20, 2013

[PRE CALC] Linear Velocity from Circles!

This vid explains how to find the linear velocity from spinning circles.   This explains how to calculate the speed of the material coming off of a roll being unrolled.

[PRE CALC] Angular displacement and velocity

This pre calculus vid introduces the topic of Angular Displacement and velocity.  Several different problems are performed in a visual step by step process.  Enjoy.

[ALG 2] Problem 36 simplify expressions part 2

This problem shows a visual method of simplifying complex expressions in Alg 2 involving exponents.

[ALG 2] Simplify Expressions part 1

This video shows you how to apply the rules of exponents and solve complex expressions.  This is part 1 and goes with section 6-1.

Monday, March 18, 2013

Thursday, March 14, 2013

[PRE CALC] Areas of circular sectors and arc length

This video explains how to find the length of an intercepted arc and the area of a sector.  This is for section 6-1 and problems p 349:  34-39 and 43-48.

Friday, March 8, 2013

Thursday, March 7, 2013

[PRE CALC] Unit circle secret pattern revealed!!

This is the secret pattern to the unit circle.  Please study this video.

[PRE CALC] Unit Circle 30/45/60

This vid explains how to find the radian measurements of the unit circle.  Try to discover the pattern.

Tuesday, March 5, 2013

[PRE CALC] Unit Circle Intro 45 deg

UNIT CIRCLE = RADIUS =1.  This is the start of many video guides involving the unit circle.  In this you will learn to convert all the intervals of 45 degrees to radian equivalents around the unit circle. You can pause the vid and practice along with us on this.

Monday, March 4, 2013

[PRE CALC] Converting radians and degrees

This video shows two examples on how to convert degrees to radians and one from radians to degrees.  You must know how to do this error free.  Examples p 348:16-27.

[PRE CALC] What is a Radian?

Hopefully this is the gold standard for answering the question, "What is a Radian?"