Sunday, December 25, 2005

MERRY CHRISTMAS

MERRY CHRISTMAS EVERYONE!!!!.......XD

Thursday, December 22, 2005

Mathematical Poetry - Genius or Madness???

Hey Jellybeans,
As an added bonus feature this term you have the opportunity to create an acrostic "poem" that demonstrates an understanding of any one of these concepts:

1. Data Sampling
2. Scatterplot
3. Polynomials
4. Algebra Tiles

Remember, this is a bit of a race. Your answers have to be posted to the blog in the comments to this post. If someone has already used a word or phrase in their acrostic you cannot use the same word or phrase. (i.e. It gets harder to do the longer you wait. ;-) Here is an example of an acrostic that I wrote:

Always in 2 dimensions
Region between the boundaries
Entire surface is calculated
Answer is in units squared

To help you get started I would "very much suggest" that you click on the acrostic link. It will help guide you through the creative process. Check out some of the acrostic poems that Mr. K's class have written.

Have a wonderful holiday and I'll see you all in the new year.
Ms. Armstrong

P.S. Here is a funny cartoon courtesy of your friend Rayan. Check it out.

Wednesday, December 21, 2005

test day and potluck

Today we had a test is was hard not that hard but fun.This afternoon we are going to have a potluck it is going to be good.

Tuesday, December 20, 2005

Statistics Quiz

Hello Jellybeans,

Here is a great review for tomorrow's test. Try it more than once because the questions should change each time it is uploaded.
Multiple choice scatterplot quiz

You can also check out the post called 'Statistically Speaking'. It will help you with some of the vocabulary in the unit. Remember, if you don't know what the words mean in the question, you can't answer it properly.

Study smart, not hard ;)
Ms. Armstrong

Monday, December 19, 2005

Today`s Math Class

This is what we did in class today :

Ms. Nickelson put questions on the over-head that showed two different scattor plots. At the bottom she put three questions, so if you missed class today you should ask her to see the scatter plots. But these are the questions she gave us:

Do these graphs show the same information? yes/no
What is the same about them ?
What is different about them?

She also did homework check on what pages we had when the sub was here, on Friday.
Pages 330-331 #1 - a,c,d ; #2 ; #3 - a, b ; #4 ; #5

She assign page 341 ; #1 - a,b,c in the text book. The questions are similar to the ones she gave us on the over-head.

DOING THE BLOG FOR BONUS MARKS:
quote from Ms. Nickelson ; "I want to know what the "muddiest point" of this unit has been. What are you still having a difficult time understanding? Go online and post your questions before Wednesday. You can recieve bonus marks by:
1) Posting a question
2) Commenting on a post to answer the question .

She also underlined some of the assignments on the board (the table of contents for the statistic`s unit) that she took in for marks. So if you guys never handed the following in:

Dictation Game
Compare & Contrast Frame
Sample & Data Worksheet
Wiley Comic
Teens Admitt to Binges

So hand those in ASAP ..
REMEMBER THE TEST IS ON WEDNESDAY SO STUDDY HARD !!




Bonus mark

Can someone tell me how can I know if its a cluster sampling, simple random sampling, and stratified random sampling.

give me a way how to know them. Don't worry about self-selective and systematic.

bonus mark

During this whole math unit i've experienced trouble on calculating the data, because i don't know what operation to use to figure out the answers.

Blogging for Bonus Marks

Hello there grade nines!

As I mentioned in class, I would like to give you the opportunity to earn a bonus mark for your test on Wednesday. You can do this in one of two ways.

1. What is your "muddiest point" from the statistics unit? Is there something you still don't understand? Are you missing any information in your notes? Explain what it is that you need help with for a bonus mark.

2. If you have the information that one of your classmates has posted about or an explanation to his/her question, respond to your classmate's post by leaving a comment and this will give you a bonus mark.

These posts need to be made by Tuesday night for the marks to count.

Don't forget that the last day to hand-in any assignments is tomorrow! I look forward to seeing you then.

Good-night!

Thursday, December 15, 2005

postive, negative, and zero correlation.

Positive Correlation : This scatterplot shows a trend (relationship) that rises to the right. Both variables are diagramed. Example : If you increase your height you increase your wieght.

Negative Correlation : This scatterplot shows a trend that drops to the right. The independent variable is imcreasing and the dependent variable is decreasing. Example : Shots in basket vs. distance from basket

Zero Correlation : The dots in this scatterplot are scattered at random and do not resemble a line. Example : Height vs. Lenght of Hair

1.draw axes
2.label each axis
horizontal axis = independant variable
veritval axis = dependant varible
3.create an appropriate scale for each axis
*each square must go up the same amount each time
*to determine an appropriate scale, take the range of your data and divide it by the number of squares on your axis
4.plot the data from the data table
5. give your graph a title

cluster sampling method

CLUSTER SAMPLING METHOD


Example: the student Council wants to stand an intermural sports program. The firs step is to determine which sports the 1000 students in grad 9-12 would like to have in the intermural each of the five members of the student Council sets out to collect data.

General characteristic: tJill is a grad 11 student. she decides to ask 1000 grad 11 students which sports they would like to have in the programs.

Stregths: The strengh of the sample is that size is good and the data iseasy to obtain.

Weakness: The weakness that the sample gves that not all the students have equal chance of being selected and not al grads or represented.

Biased: The sample is biased because jills Sampling method does not all students are not included in he asking.




rosalie. s , Ryan ra ra , Joe Joe ,eatacio, xd

Wednesday, December 14, 2005

Five Steps to Creating Scatterplot

I need your help to, in turn, help all your classmates out.

Remember how in class we looked at the five steps to creating a scatterplot? In order to remember these steps for the test, I would like to challenge your creative minds to create a saying, poem, or rhyme using the five letters of the steps: ALSPT

For example, when I was in school and trying to learn the directions, north, east, south, and west, I memorized the saying, "Never Eat Shredded Wheat."

Good luck!

Hiring a Scribe

Hello there everyone!

I have been so busy trying to prepare fun, but meaningful, math lessons for you that I haven't checked out the blog for a while!

The scribes who have done their duty have been doing a great job of listing the activities that we do in class, and Anne (the scribe before this post), has taken "scribing" to the next level by also including the content of what we learned. This is the scribe's job- to help those who missed class by providing them with the information we learned; and to help those who were in class but who, for some reason, missed an answer or some notes.

So... when it's your turn to be scribe, try answering these questions in your blog:

What did we do in class today?
What did we learn during these activities?
Was this new information or something I've seen in math or another class before?
Was the material difficult or easy to understand?
Is there something that I still don't understand and could ask my classmates to explain?
Did anything else happen during class that would be fun to keep a record of?


That's all for now! Just one quick reminder that your unit test will be on Wednesday!

Monday, December 12, 2005

LISTEN UP

Hello guys. It's me Anne well here are the things that we did today...

Relationships
  • first thing we did was talk about relationships, how math have relationships between them.

e.g., 2x-3=y

the variables are connected because if you don't know what x is you wouldn't know what y is...

SOMETHING LIKE THAT =D

Three point: Approach definitions

  • Scatterplot- A graph with points on a coordinate grid that attempts to show a relationship between 2 variables.

e.g., scattered seeds on ground

  • Independent variable- The variable that is controlled(x).

e.g., distance in our bean bag activity

  • Dependent variable- The variable that changes depending on the independent variable(y).

e.g., the number of shot in (in our bean bag activity)

Creating your own Scatterplot

  • For this one there's suppose to be drawings but i don't know how to put that so i'll just type the steps. But if you really want to see how it looks like just ask me at school.

1. Draw Axes. * Fill the page.

2. Label each axis.

Horizontal axis= __ independent variable.

Vertical axis= dependent variable.

3. Create an appropriate Scale for each axis.

*Note: Each square must go up the same amount.

4. Plot the data from the data table.

5. Give your graph a Title.

Re-visiting bean bag activity

  • For this one we basically just talked about the activity we did on friday which was the bean bag toss...

Homework Assignment

  • Miss Nicholson told us to get a partner and then she handed out sheets with problems and applications written on it. It was about scatterplot. We had to work on it until the bell rung. She didn't tell us it was for homework but it's better if you work on it.

Well I think that's about it. I had fun posting on the blog! If you have any questions don't be shy to ask me.

Remember: YOU CAN'T RUN AWAY FROM MATH, IT'S JUST THAT FUN.!.

-anne.a

Saturday, December 10, 2005

S1 Math Unit - Polynomials Table of Contents

For anyone that has not yet handed in their completed unit, here is the table of contents:
Thursday Oct.6 - Notes:Translation
Worksheet:Translating Expressions
Tuesday Oct.11 - Polynomial Vocabulary
Vocabulary Match - Orange Page
Thursday Oct.13-Worksheet:Intro to Polynomials
Worksheet:perimeter
Friday Oct.14 - Like and Unlike terms(green booklet)
Pg.19 - bottom 6 questions
Pg.20/21 - combining like terms
Pg.22,23,24
Monday Oct.24 - Rules to live by #2-5
Tuesday Oct.25 - Notes:Adding Polynomials
Assignment:Pg 152 # 5 - 30 omit 28
Wednesday Oct.26 - Quiz Polynomials
Friday Oct.28 - Expressions: Creating a game
3x3 puzzle
Monday Oct.31 - Quiz "Your Turn" Adding polynomials
Tuesday Nov.1 - Notes: Subtracting Polynomials
Thursday Nov.3 - Assignment:pg.155 # 1 - 30
Monday Nov.7 - Quiz "Your Turn" sub. Polynomials
Tuesday Nov.8 - Notes: Multiplying polynomials
- Assignment:multiplying mono. X mono.
Wednesday Nov.9 - Notes:Multiplying binomial x binomial
- Assignment: Side2
Monday Nov. 25 - Notes : Multiplying Polynomials x mono.
-Assignment: Page 189 #1-46(even only)
-#47(911),48
-Quiz overhead(add/sub)
Tuesday Nov.15 - Ed helper(20 questions) bi x binomial
Wednesday Nov.16 - Notes: substitution
-Assign:pg 63 #15-20, #21 a/b
Thursday Nov.17 - Worksheet: substitution w/ simplifying(pg 3)
Friday Nov.18 - Unit Review

Friday, December 09, 2005

Today

today we finished our sampling presentations and when we were done that we worked on a newspaper article about teenagers binges and i dont know what else to say.


Michelle Covey

Thursday, December 08, 2005

The weaknesses are:
- a list of the entire population is needed
and
-obtaining data will not be quick.

The general characteristics in Simple Random Sampling Method is that: The members of the population that are surveyed are randomly generated on a computer.

Again, this sampling method cannot be biased because the 100 students were randomly picked.

Statistically Speaking

Hello again Jellybeans,
Here are some games to help you study the new vocabulary that Ms. Nicholson introduced for the statistics unit.

Sampling Terminology
Graphing Terminology
Scatterplot Terminolgy

Keep practising... you are going to be very smart mathematical jellybeans.
Ms. Armstrong

More Polynomial Practice

Hey Jellybeans,
Are you up for a little review? Here are some online multiple choice quizzes to review the major concepts from the polynomial unit - What a great way to prepare for the MIDTERM EXAM that you will be taking in January.

Adding Polynomials (5 questions)
Subtracting Polynomials (5 questions)
Multiplying a Polynomial by a Monomial (5 questions)
Multiplying Binomials (5 questions)
Substitution (5 questions) Leave out any questions about degree of polynomial.

You can take the quizzes as many times as you need to improve your skills.
Have Fun, and happy studying !!
Ms. Armstrong

Wednesday, December 07, 2005

Simple Random Sampling Method

This is the sample that was given to us:

The student council wants to start an intramural sports program. The first step is to determine which sports the 1000 students in grades 9-12 would like to have in the program. Each of the five members of the council sets out to collect data.
Amanda enlists the help of the school secretaries. They used a computer to randomly generate a list of 100 students from the roster. Amanda then surveys these students about the sports they would like to have in the program.
---------------------------------------------------
So what they did was use the computer and randomly generate 100 students from the 1000 students in grades 9-12. All the 100 students that was picked were the ones who was surveyed about the sports they would like to have in the program.
----------------------------------------------------
In this sampling method, there are strengths and weaknesses.
The strengths are:
The entire population has an equal chance of being selected,
The sample size is good
The sampling method eliminates bias.
Why? Because for this sample, the students were randomly picked.
------------------------------------------

Monday, December 05, 2005

Simple Random Sampling Method Presentation

Example:
1000 students from grades 9-12 are randomly selected to for the school to start an intramural sports program.

General Characteristics:
In this type of sampling the sample is chosen randomly from the entire population.

Strengths:
the sampling method eliminates bias. The sample size is good. Everyone and or thing in the population has an equal chance of being selected.

Weaknesses:
A list of the entire population is needed.
Obtaining data will not be quick.

Biases:
This sampling method is not biased.






by Sunshine Salomon and Andrew Espiritu

December 5th math class


Ms. Nicholson gave us individual questions. What we had to do was indicate whether it belonged in the Negative Bias, Positive Bias or No Bias. So we got into groups than we read them out and determined whether we were in the right group or not. After that, we got into groups with others that had the same type of question. What we did then was, we made up two questions, a positive or negative bias and than a question without a bias.
by Sunshine (o0o its my first post, you guys better read it ! haha)

Cluster Sampling Method

i'm so sure that i'm doing this right.. :S

Example: The Student Council wants to stand intramural sports programs. The first step is to determine which sports the 1000 students in grade 9-12 would like to have in the intramural. Each of the five members of the student council sets out to collect data.

weaknesses: not all population is represented & not all population have an equal chance of being selected
bias: jill's sampling method is based because the entire student poplation is not represented. the amount of population that jill has covered is 100.

Michelle George Ivory Daureen

Systemic Sampling Method Presentation

Stratified Random Sampling Method

Example:
-The student council wants to start an intramural sports program. Each of the five members of the council sets out to collect data. John obtains a list of students that he arranges by grade level he plans to randomly select a proportionate number of students from each grade to survey.

Weaknesses:

-Data collection is not quick and easy.

Biases:
-Stratified random sampling is not biase because the entire student population is represented.

that's all...

Sunday, December 04, 2005

Cluster Sampling Method


Cluster Sampling Method

Example: The Student Council wants to stand intramural sports programs. The first step is to determine which sports the 1000 students in grade 9-12 would like to have in the intramural. Each of the five members of the student council sets out to collect data.
General Characteristic: Jill is a grade 11 student. She decides to ask 100 grade 11 students
which sports they would like to have in the programs.
Strengths: The data is easy to obtain and the sample size is good.

George, Michelle S, Daureen, Ivory

Cluster Sampling Method

Example : The Student Council wants to stand an intramural sports programs. The first step is to determine which sports the 1000 students in grade 9-12 would like to have in the intramural. Each of the five memebers of the student council sets out to collect data.

General Characteristic: Jill is a grade 11 student. She decides to ask 100 grade 11 students which sports they would like to have in the programs.

Strengths: The strength of the sample is that size is good and the data is easy to obtain.

Weaknesses: The weaknesses that the sample gives that not all the students have equal chance of being selected and not all grades are represented.

Biased: The sample is biased because Jill's sampling method does not show the entire population and not all students are not included in her asking.

KYLE CORONIA, RYAN RARA, JO3 JO3 3STACIO, ROSALIE...XD

Friday, December 02, 2005

can some one please post for me explination on statistics

Polynomial Unit

can somebody post the table of contents http://s13.invisionfree.com/DMCIMath/index.php?showtopic=2 <--------- here

please and thank you

Sampling method stratified random

The strengths for stratified random is all grads are represented, sample size is good, all students have an equal chance of being selected. And it is not biases because entire student population is represented. The general characteristics is the conical sets out to collect data.

Thursday, December 01, 2005

Statistics

Can some one help me about statistics because I'm a little bit cofused and the cluster and sampling method is also cofusing. just leave a comment

today in math..

Today in math, all we did was get our polynomial test, and reflection sheet back. We had to correct all the mistakes on our test, and on the reflection sheet, you just have to write down, if you were succesful on your goal. Then we left for the next class.. thats pretty much all we did.

today our class was arranged in groups and we read a certain article whether marijuana should be legal for who need it for medical use. my group agreed since they needed the marijuana as a remedy.

Today in math...

Well technically yesterday =/ but anyhow, We worked on our Sample project thing all period in the Mac lab, it was very easy, the question sheet assigned was simple, it basically had questions like "how accurate is this sample?" it was like the marks were calling out to us...