March 17, 2011
THE EXAM IS NEXT TUESDAY!!!
(1) Bring a non-graphing calculator with log and trig functions. The TI-30 series of calculators is great. I just bought a two-line version at Walmart for $14.02 including tax. Bring it to school on Friday and Monday. Practice with it!!
(2) Print out the study guide and work through it. You need to be familiar with these types of problems for the test on Tuesday. Download Ghsgtgpsstudyguide[1]
Sophomores: You'll be taking the exam soon. Take advantage of this head start.
It's time to study for the Georgia High School Graduation Test. Practice this weekend. Practice every night. Bring in a calculator that you will be able to use on the test (not a calculator with alphabet keys). Work the practice test.
Here are two grade recovery opportunities that the students should consider:
Download Math 3 Unit 4 Optional Recovery Offer
The conics task will be required of everyone.
We will be taking practice tests and reviewing for the GHSGT next week.
Welcome back from the February break.
It's time to explore conic sections, the intersections of planes with cones. As you learned in class today, there are four types of intersection that a plane can make with a cone: circle, ellipse, parabola, and hyperbola. Each of these shapes is defined by an equation and has specific vocabulary, which you recorded in class on the activity sheet.
Here is a website that explains the concept: http://mathworld.wolfram.com/ConicSection.html
Download Math3unit5se This the overview of the entire unit.
We'll start our investigation of conic sections with circles. Recognize that we know EVERYTHING about a circle if we know its center and radius. The formula for a circle tells us both the center and the radius, but sometimes we have to complete the square to extract these pieces of information.
HW for Monday, February 28th: Read the section in the text that describes circles, section 5.2.
DON'T FORGET TO STUDY FOR THE GEORGIA HIGH SCHOOL GRADUATION TEST.
Study guide for the GHSGT: Download GHSGT Math Student Guide GPS February 2011
http://www.montanamath.org/geogebra/ellipse/ellipse.html
http://www.slu.edu/classes/maymk/GeoGebra/Conics2.html
HW for Tuesday, March 1: Complete the first side of the worksheet handed out in class (page 27 from the test preparation guide book) .The website to help with the homework: http://academic.sun.ac.za/mathed/shoma/MATUNIT13_03.htm#"
Click on the MOVING CIRCLE button to access the applet that will verify your answers.
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By now you have investigated conic sections in general, worked with circles and ellipses, and practiced completing the square.
Your homework for the weekend (DUE March 7th) is the set of odd problems from sections A, B, G, & H on the worksheet handed out in class today. If you want to use the textbook to supplement the tasks we're using in class, the pertinent section is Chapter 5.
We will continue to work with circles, ellipses, and revisit parabolas, with a test on Thursday, March 10.
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Here's a site from UGA that explains parabolas: http://jwilson.coe.uga.edu/EMT725/Class/Sarfaty/EMT669/InstructionalUnit/Parabolas/parabolas.html
In addition to working through the tasks you tackled in class, you should work problems from the problem worksheet. All the problems except the hyperbola problems are good preparation.
Here's a semi-complete version of the review worksheet from Wednesday's class. Download Conic Section Review-semi complete
