5/1/13 Trig transformations

learning target: students can graph trigonometric transformations.

Activity: watch this first:

Then, using what you know about function transformations create a function of the Minneapolis sun height throughout the year:

Homework: due Friday:

Solutions to the last HW set

Friday 4/26/13 trigonometry function transformations

Learning target: students can identify characteristics of trig function transformation from graphs and equations.

Homework solutions Trig Hw #2

Solutions to last weeks homework set

4/22/13 Law of Sines and Cosines

Learning Target: students can apply trigonometry to non-right triangles

This lesson was taken from the following location, and I would like to thank Kate Nowak for this idea.
http://function-of-time.blogspot.com/2011/03/force-vectors-and-youtube-for.html

 

Video: http://www.youtube.com/watch?v=4RdxU-0W-RE


Check for understanding:


Check for understanding: LAW OF COSINES:


Homework: classroom for success (due tomorrow)

Wed/Thurs 4/17/13-4/18/13 arcfunctions

Learning target: students can find angles using arc-functions.
Supporting learning target: students can explain the difference between inverse-trig functions and arc-trig functions

Activity: We will put a new entry in our periodic functions table of contents: trig identities.   Then I will have students create a new page, titles trig inverse and arc-functions.  Here are the directions:


1.)Pick a partner next to you.

2.) trade notebooks.

3.) Your partner will neatly draw 4 right triangles on your page, and you will draw 4 on theirs.

4.) When you are done hand the notebook back to the owner.

5.) Correctly identify the angles of the triangles drawn by only measuring the side lengths, finding a trig ratio, and referencing the trig values chart.

(use any of the three trig functions per triangle, but do at least one of each overall)

Handout:


Test for understanding, half page, students do the front 4 triangles and high challenge students can practice #5 & #6 on the back.


Classwork solutions:


 Homework (due Friday) worksheet


Homework (due Tuesday)  classroom for success

Friday 4/11/13 - find trig values using the unit circle

Learning target: students can evaluate trig functions using the unit circle.

Activity: trig values war.  Students who can do this and determine values using only their unit circle are considered "pro" and those that want to crunch them with their calculators are "novice"

Homework (due Weds.)

Thursday 4/11/13 Calculating arc length and area

Learning target: students can calculate arc length and the area under an arc.

Demo on radians, degrees, arc length and area of a sector


Homework: 

What is a radian? Converting between radians and degrees

Learning target: students can convert between radians and degrees.

Angles Measured in Degrees and Radians from the Wolfram Demonstrations Project by Eric Schulz

Wednesday 4/10/13 Solving for an unknown leg in a right triangle (part 2)

Learning target: students can solve for an unknown leg of a triangle.

Tuesday 4/9/13 - solving for an unknown in a right triangle.

Learning target: students can solve for an unknown leg of a triangle.