Thursday, December 16, 2010

PG DSPA and LS1-13

Today in class we...

Turned in PG Review

Discussed Team Test and answered questions

Completed the PG DSPA

Received the LS Semester 1 Guideline

Completed LS 1-13

Reminder: PG 2nd Chance Binders due on Friday.

Monday, December 13, 2010

PG Team Test

Today in class we...

Turned in PG125-163

Completed PG Team Test

Received 2nd Chance Binder assignments for PG, binders due on Friday

Completed PG Review due on Wednesday.

See previous posts for links to help with ideas from PG.

PG DSPA will be Wednesday December 15, no tool kits will be allowed.

Friday, December 10, 2010

PG 144-163

Today in class we...

Added Sleeping Parabola and Circle to our Parent Graph Tool Kits (If you missed this, the notes are on the back counter in the classroom, please add them to your tool kits).

Answered questions from PG 125-143, because of the vast amount of new information, this assignment is due on Monday so that you can revisit some of the problems if necessary.

Completed PG151-155 in class

Completed PG 144-150 and 157-163 for homework (PG144-163 is also due on Monday)

Completed the PG Review at home for extra credit and to prepare for the PG Team Test on Monday.

Tuesday, December 7, 2010

Parent Graph Help Websites

Here are a couple of links that might help with graphing parent graphs.

Graphing Parabolas

Absolute Value Equations

Other Parents

PG Team Test will be on Monday December 13.

PG DSPA will be on Wednesday December 15.

PG125-143

Today in class we...

answered questions from 101-124 and turned the assignment in.

added Absolute Value to our Parent Graph Tool Kits
Parent: Absolute Value
Equation: y=|x|
Domain: All Real Numbers
Range: y>=0
Locator Point: Vertex
General Equation: y=a|x-h|+k where a is the stretch factor/orientation, h is horizontal shift, and k is vertical shift.
Additional Information: no asymptotes, line of symmetry at x=h.

Completed 125-130 in class to investigate the Sleeping Parabola

Completed 138-143 in class to investigate the Circle

Homework: 131-137.

PG125-143 is due on Thursday when we will add Sleeping Parabola and Circle to our PGTK

Thursday, December 2, 2010

PG101-124

Today in class we will...

Correct and turn in PG83-100

Take a team quiz over parent graphs

Add Absolute Value to our parent graph tool kits (notes are available in class if you are absent...check the back counter when you return)

Complete PG 101-110 and 114-124 due on Tuesday

Wednesday, December 1, 2010

PG83-100

Today in class we...

Corrected and turned in PG76-82

Completed PG 83-87, 97-100 in class

Completed PG 88-95 for homework.

The assignment 83-100 is due on Friday.

Tuesday, November 30, 2010

PG 74-82

Today in class we...

Turned in PG56-73

Created our Parent Graph Tool Kit Books (If you were absent I will give you instructions on Wednesday)

Entered information about the parent graphs for lines, parabolas, cubics, exponentials, and hyperbolas.

Completed problems 76, 78-82 due on Wednesday.

Tuesday, November 23, 2010

PG 56-73

Today in class we...

Turned in PG 22-41, and 42-53

Completed PG 56-60 to learn how to shift other parent graphs other than parabolas, we used a resource page to complete 56 to save time. Resource page can be found at http://cpm.org/pdfs/stuRes/Math3/unit_04/PG-56_Resource_Page.pdf or by using the links at the right.

Corrected dspas with scores lower than 80%

Worked on PG61-73 for homework due Monday November 29

Friday, November 19, 2010

PG32,33, 42-53

Today in class we...

Answered questions and corrected PG 22-41...extended due date until Tuesday November 23

Discussed Modeling Parabolas by completing PG32, and 33 together

Steps:
1) Determine the location of the x- and y- axes
2) Determine the vertex of the parabola (x, y) h=x-coordinate of vertex, k=y-coordinate of vertex
3) Plug h and k into graphing form of the equation, y=a(x-h)^2+k
4) Choose a point other than the vertex to plug into the equation (x-intercepts work well here) so that the only variable left is "a"
5) Solve for "a"
6) Plug "a", "h", and "k" into the graphing form of the equation and sketch a graph.
Done!

Discussed Completing the Square using algebra tiles and completing PG46 and 47 together, then doing 48 and 49 in groups.

Steps:
1) Arrange x^2 and x tiles into a square
2) Fill in with unit tiles
3) Write the name of the square and how many unit tiles you are short/long

or:
1) Take coefficient of x
2) Divide by 2... this becomes (-h) in the graphing form of the equation...
3) Take the value in step 2 and square it
4) Subtract the value from step 3 from the number of units in the standard form or the equation...this becomes k in the graphing form of the equation.

Homework: PG42-44, 53 due on Tuesday.

Wednesday, November 17, 2010

PG21-41

Today in class we...
Answered questions from Mileposts 1, 5, 6, 7 odds
Completed PG21 as a warm up activity to introduce "Graphing Form" and "Standard Form" of parabolas.

Graphing form: y=a(x-h)^2+k where a=stretch factor/orientation, h=horizontal shift, k=vertical shift.

Standard form: y=ax^2+bx+c *note: a is the same number in both graphing and standard form

After completing PG23, we summarized the process needed to change an equation from standard form to graphing form by averaging the x-intercepts.

Process:
1) find the x-intercepts by substituting y=0
2) average the x-intercepts to find the x-coordinate of the vertex
3) substitute the x-coordinate of the vertex into the equation to find the y-coordinate of the vertex
4) sketch a graph, identify a, h, and k
5) substitute a, h, and k into the graphing form of the parabola

Use this process to answer question #24 and 25.

While working on the assignment, we looked at the FX DSPA. Anyone scoring less than 80% will need to make corrections to this test on Friday.
DSPA STATS: High 100, Low 59. Mean 85.5, Median 88, Mode 99. 13 people scored lower than 80%

Homework: PG26-31, 34-41 Due Friday.

Monday, November 15, 2010

FXDSPA/Mileposts 1, 5, 6, 7 Odds

Today in class we...
answered questions from PG1-20...biggest question was on 16b and c. Hints: Express both bases as powers of the same number ( 4 is 2^2 and 8 is 2^3), then simplify exponents, then set exponents equal to each other and solve for the variable.

turned in 2nd chance binders
turned in PG1-20

Took the FX DSPA...will be graded by Wednesday, if you were absent...make up by 11/24

Completed milepost problems from the back of the book (Page 495) We did mileposts 1, 5, 6, 7 and only completed the odd problems. This assignment is due Wednesday.

:) Thanks!

Tuesday, November 9, 2010

PG 1-20

Today in class we...
*added onto PG 5-11
*passed back 2nd chance assignments
*completed the Shrinking Targets lab and PG 2-5 on a resource page
*completed PG 12 paying close attention to the patterns that occur.

Homework: PG 13-20

UPCOMING DEADLINES
**Parent Teacher Conferences November 10 and 11
**FX DSPA November 15
**FX 2nd Chance Binder November 15

FX Review Help

Exponential functions, growth and decay...

http://hotmath.com/help/gt/genericalg1/section_9_6.html

Exponent Rules...

http://hotmath.com/help/gt/genericalg1/section_6_1.html