Tuesday, March 31, 2009

GEOMETRY

Tuesday, March 31

Homework:
p.436 #2-18 even

Today and yesterday, we started chapter 8, discussing similar figures... specifically, similar polygons and triangles. We learned the three theorems for proving triangle similarity. For more help on this topic, read sections 8.1-8.3 in your textbook.

We're having a review exam this thursday on chapters 4-6. Study up!

GEOMETRY

Monday, March 30

Homework:
p.419 #26-42 even
p.425 #2-16 even

Friday, March 27, 2009

GEOMETRY

Homework:
none

Over the past two days, we've been reviewing chapter 7, with a HEAVY emphasis on lesson 7.7 - Areas of sectors and segments. Today, we took our final chapter 7 test. Please see Mr. Jones about making this test up if you were absent on Friday. On Monday, we'll start Chapter 8 on similarity and proportions.

GO HEELS!!!

(sorry devils...)

AFM

Homework:
Watch the stock market!

The past two days, we've been working on chapter 4, learning about the mathematics behind financing a new car. Today, we researched the stock market and "bought" our mock-stocks based on our regression equations attained from our stocks' recent performance.

Tuesday, March 24, 2009

GEOMETRY

Tuesday, March 24

Homework:
p. 397 #2-26 even

Today, we learned how to calculate the area of circles, and we were introduced to sectors and segments -- pieces of the area of a circle. We covered how to calculate their area using fractions and how to use part+part=whole equations to solve problems.

For more help on this topic, read section 7.7 in your textbook. We will have our final Chapter 7 test this coming Friday. ***Reminder! Corrections for our first Chapter 7 test are due this coming friday. Don't be late!***

GEOMETRY

Monday, March 23

Homework:
p.390 #10-38 even

Today, we covered the circumference of circles, and arcs -- pieces of the circumference. We learned how to measure arcs using either degrees or length.

For more help, read section 7.6 in your textbook. Also, visit www.mathopenref.com for visual aids that can help you better understand how certain figures behave.

Tuesday, March 17, 2009

GEOMETRY

Homework:
p.382 #2-18 even

Today, we learned how to calculate the area of a regular polygon using our special right triangle rules. For more help on this topic, please read section 7.5 in your textbook.

GEOMETRY

Monday, March 16

Homework:
p.376 #8-20

Today, we learned how to find the areas of trapezoids, rhombuses, and kites, using the right triangles inside them. We used the Pythagorean Theorem and our special right triangle rules to find the heights, and then found the areas. For more help on this topic, read section 7-4 in your textbook.

AFM

Tuesday, March 17

No homework tonight. Study for your chapter 4 test tomorrow, using your review packet as a template.

Friday, March 13, 2009

GEOMETRY

Thursday, March 12 2009

Homework:
p.361 #2-22 even

Today, we "officially" learned the Pythagorean Theorem. (We have been hinting at it for a while.) We also learned how to correctly identify the legs and hypotenuse of any right triangle, in order to write our Pythagorean equations correctly.

For more help on this topic, read section 7-2 in your textbook.

AFM

Wednesday, March 11 2009

Homework:
Finish quadratic equation worksheet

GEOMETRY

Tuesday, March 12 2009

Homework:
p.351 #1-13

Today, we began chapter 7, and learned the formulas for the area of parallelograms and triangles, as well as the relationship between base and height. They're always PERPENDICULAR!

For more help on this topic, read section 7-1 in your textbook.

AFM

Tuesday, March 12 2009

Homework:
p.210 #1-4

Tuesday, March 10, 2009

GEOMETRY

Homework:

None tonight. Thanks for your hard work on the test today. Enjoy the night off. Tomorrow, we'll start on chapter 7, which covers area and perimeter.

AFM

Homework:

Pick a company (Starbucks, Coca-Cola, WalMart, etc.) that you are interested in and find out how much its stock sold for today. Bring that information to class tomorrow.

Monday, March 9, 2009

GEOMETRY

Homework:
None! Study for chapter 6 test tomorrow!!!

Tips:
1) Study and memorize at least the 5 parallelogram properties, as well as the 2 rectangle properties and 3 rhombus properties.
2) Review parallel lines (chapter 3), especially alternate interior angles.
3) Review triangle rules, especially Triangle Angle Sum Theorem (3 angles = 180)

Extra practice:

p.342 chapter test
#1-3
#8-15
#17-19
(solutions below... try not to look until you're done!)







1. Trapezoid - only one pair of parallel sides (DRAW THESE! DON'T JUST GUESS!)
2. Kite - 2 pairs of congruent, intersecting sides
3. Parallelogram - 2 pairs of opposite congruent sides

8. x=100, y=50, z=40 (look for the isosceles triangles)
9. x=57, y=57, z=66 (diagonals of a rhombus bisect the angles they enter)
10. x=6, y=5 (diagonals bisect each other... 4x-4=3x+2)
11. x=36, y=108, z=72
12. Yes - parallelogram prop 4
13. Yes - 5th (extra) method of proving a parallelogram
14. Yes - parallelogram prop 2
15. Yes - parallelogram prop 3

17. x=2, y=1
18. 90, 30
19. 50,30

Hope that helps!

AFM

Homework:
p.210 #1-7

Thursday, March 5, 2009

GEOMETRY

Homework:
p.315 #2-24 even
p.328 #2-18 even

So sorry everyone... it looks like my first post failed due to DPS's web filter. Hope i'm not too late.

Today, we covered trapezoids and kites, as well as their properties and how to write equations involving their sides and angles. For more help on this, read section 6-5 in your textbook.

AFM

Homework:
p. 201 #1-4

Today, we started a new unit about paired sampling used in steroid testing. For more help on this topic, read section 4.1 in your textbook.

Tomorrow, we'll start building our mathematical models for predicting the outcome of our testing, as well as minimizing our testing cost.

GEOMETRY

Wednesday, March 4

Homework:
p.298 #10-26 even

Sorry for being late on this post, everyone. My absent-mindedness catches up with me every now and then.

Today, we covered parallelograms, rhombuses, rectangles, and squares, and learned their properties. For more help, read sections 6-2 through 6-4 in your textbook.