Thursday, September 27, 2012

today in class we went over homework and worked on writing equations by using a graph as well as finding points on sin and cos graphs by only using the equations
the homework for today was gpc #7
CLICK HERE to view solutions for the packet "Practice Graphing AsinCx+B"

Thursday, September 20, 2012

Today we did this activity with a bunch of graphs that made no sense until we found out that they are different functions of Sin and Cos. We found differences between these graphs and we started talking about them and then the bell rang. Oh and do GPC assignment #6.

Monday, September 17, 2012

In Class- Today we learned how to find the length of an arc and the area of a sector given the radius by utilizing proportions. The proportion of the angle to the whole circle is equivalent to the length/area of the arc/sector compared to the circumference/area of the circle. Homework- study for tomorrow's quiz.
CLICK HERE for the solutions to the Review Packet for the quiz
CLICK HERE for Exemplars of Explanations on Using the Unit Circle

Student Solutions to the Arc Length/ Sector Area Wkst (click to enlarge):

Mrs. Prior's Notes on Arc Length & Sector Area (click to enlarge):

Saturday, September 15, 2012

In-class: We took a quick-quiz on the unit circle (filling in the coordinate points and the radians). We also played bingo to review for the quiz on Tuesday.
Homework: Unit 6 Circular Functions Review Packet (optional).
Reminders: There will be a quiz on Tuesday 9/18.

Wednesday, September 12, 2012

Essential Question: How do we convert between angle measures?
Classwork: Did another Mad Minutes quiz, talked about, explained and came up with examples of co-terminal angles (equations- x+360°n or x+n2π where is x the given degree and n is the number of full rotations [must be a whole number]). We labeled radians for all labeled angles on the unit sheet as well. (Trick to remember: All 45° degree related measure are 1/4π greater than the last. All others go up by 1/6π.) We also went over the homework (assignment #3) in class.
Homework: Assignment #4 (due 9/13) 
                 Writing Assignment (due 9/14)

Tuesday, September 11, 2012

Essential Question: What is a radian?
Class: Took a quick quiz on x and y-cordinates and thier relations to circle degrees when on an x-y plane and right triangles. Then we tried to convert radians to degrees and radians to degrees. There are many different way to do this. Such as using a proportion, dimensional anaylsis, or multiplying. We now know that 1 radian=180 degrees/pi and 1 degree=pi/180 degrees.
Homework:Assignment #3(due tomorrow) and the online assignment (due friday)

Monday, September 10, 2012

Essential Question:What is a radian?
Class: New seats, blog assignments, online assignment, continued going over radian worksheet (millimeter beads), radian is another way to measure angles (bigger than degrees), 2pi is the amount of radians in a circle
Homework:Come up with radian measures for all special angles (on unit circle...30, 45, 60, 90, 120, 135, 150, 180, 210, 225, 240, 270, 300, 315, 330, and 360), Quick Quiz tomorrow on x and y-coordinates and degrees in the Unit Circle
Complete the online writing assignment by clicking HERE.  This assignment is due by 11:59pm Friday 9/14.

Friday, September 7, 2012

Essential questions:  How do we use the Unit Circle to graph the functions sine and cosine?  How can we find and/or estimate values of sine and cosine using the circle and/or the graphs?  What is a radian?
*We took a QQ on the Unit Circle and "Mad Minutes" #2
HW:  CYU p.427 in online CorePlus textbook

Thursday, September 6, 2012

Essential questions:  How do we use the Unit Circle to graph the functions sine and cosine?  How can we find and/or estimate values of sine and cosine using the circle and/or the graphs?
HW:  CYU p.427 in online CorePlus textbook;  Quick Quiz on angle measures and coordinates on the circle