Monday, November 30, 2009

Gordon's Scribepost

Today we added some work on perfect squares to our foldables

First we drew a number line with five captions (area, side length, as fraction, as decimal, and with calculator) For each perfect square, we had to put a square around the number. We also filled out the side length section with the appropriate number for each of the perfect squares. Okay now we learned about the patterns with the numbers leading up to and the perfect squares (bolded)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
2 4 6 8

as shown above the amount of numbers in between perfect squares increases by 2 each time

next the spaces in between the numbers (each dash is one space)

1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25
3 5 7 9

as you can see it still goes up by 2 but on an odd number scale.

next the fraction part

1 1/3 2 1/3 3 1/3 4
1 1 1/3 1 2/3 1 3/3
each space in between is one fraction with the denomonator being equal to the number of spaces in between the numbers ie. 1 1/3 = 1.33 and so on

hope this was a good explination happy mathimatics

this also l

Jennifer's ScribePost :]

Hello Everyone! Today we had a math quiz today and I think I did really bad on the test! T.T. Anyways after the math test we added some stuff to our fold able. So here is a diagram of what we add in our squares section on the green side.

As you can see, we drew a number line. For every each perfect square, we had to put a square around the number all the way up to 25. We also filled out the side length for each of the perfect squares (Which is very easy to answer) Okay now moving on.. Ms. Usisken also showed us a pattern about those squares. Here's a diagram that will help you explain everything!

As you can see, I putted a black square on every perfect square. And I putted red squares between the numbers between the perfect squares. Now do you see a pattern that is going on? The not perfect squares grows by 2 each time! There is another pattern also! I will show you in the next diagram.

So for this diagram, I putted a black square for the perfect squares. But, instead of putting boxes for this picture, I putted dashes! So this is our next pattern called "Squares between perfect squares" This diagram is also similar to the other diagram but it's using spaces! There is one more thing I need to show you. So here's the diagram;

Since I didn't remember why Ms. Usisken drew this picture but this is the key on finishing the your homework! Also she gave us a few examples on fractions and decimals. So look at the diagram one. Just pretend it's filled with those fractions. For example, 2 as a fraction, it would be one and one-third. As a decimal, it would be 1.33. See what I mean? If you don't get it please comment on what I confuse you.

Thanks For Reading! Press The Play button for a song!

Sunday, November 29, 2009

How I stopped an Alien Invasion using Proportion

Story pieces - in blue

Math problems - in red

BREAKING NEWS IT'S A AN ALIEN INVASION!!!!

THE LITTLE GREEN PEOPLE ARE FINALLY TAKING BACK WHAT THEY THINK IS THEIRS!!!
Unless......... I solve three proportion questions correctly they will destroy us all!!!
It's up to me to save you worthless people with my incredible brain power in math!!!!!

2.Your friend missed the lesson on proportions. Explain
how to use a proportion to solve this problem.
Cheryl is selling marbles. What is the cost of seven marbles?

the cost of seven marbles is 245 cents.

The first question is answered correctly and the aliens are getting back into there spaceships.

3. a) Write a proportion based on the following scenario:
Three balls cost \$1.25. What is the cost of 12 balls?

b) Solve the proportion.

The cost of 12 balls is 5\$.

Finally thiers putting away their deadly weapons and preparing for lift off.

19. Determine the missing value in each
equivalent fraction.

I have now saved you all, the aliens have fled.
BOW DOWN!!!!

Parts of the a Square.

About these Squares, they tell us that if it is a perfect square or not a perfect square like
e.g 9 is a perfect square it is a product of the same 2 numbers which is three x three = 9
Maybe, prime numbers almost can be square but that only can be divided by even numbders. not odd numbers.
So, Mr. Backe just told something we learned before Square roots not squares with roots under them with... um how about I show you :

It means that a number that when multiplied by itself equals a given value is the square root.
the picture you are seeing is the Square root 4 of 2
so it is 2 squared (2) that equals to 4
so please comment what I did good or what I did bad or what I am missing PLEASE COMMENT >.<

danielle graphing [bob]

Three things I now know about graphing

The first thing is that there are different types of graphs
eg. circle graph, bar garph, double bar graph, pictograph, and line graph.

the second thing about graphs are that they are used to represent data in a way you'll understand.

the third thing is that there's allway's something that tells you what the graph is about.

what I need to improve on:
I need to improve on remembering the y-axis and the x-axis.

sorry that this is so late but can you please comment

Saturday, November 28, 2009

How I Stoped an Alien,Bruce8-16(late)

It was an ordinary day all the sudden a UFO landed and threatened to take over the Earth. Unless I answer 3 of it's proportional questions correctly the alien will take over the world.

The first question was:
A small gear turns 18 times in the same time that a large gear turns 4 times, how many times will the large gear turn if the small gear turns 54 times?
In the same amount of time that the small gear turns 54 times, the large gear would have turned 12 times.The alien said it was right but not to be too happy because it was probably just luck the answer was right.

The second question is:
Look at the pattern, set up a proportion you could use to find the number of small squares in Figure 7.
In figure 7, there would be 14 squares. The alien is getting nervous which means I was correct and all I needed was one more question to go.

The third and last question:

The dosage of a certain medicine for a child is 2.5 ml for each 3 kg mass of the child. What is the dose, in millilitres, for a child with a mass of 16.5 kg?
For a child with a mass of 16.5 kg, they will have a dose of 13.75 ml of the medicine. I got all three questions right which meant I had defeated the alien. The alien left and I had saved the earth!

Sorry about not having any pictures, my computer wasn't working right.

Laura's Late Scribepost About Squares :)

Hey everybody! Sorry this is late.

OK, so we have 4 squares. Each square is made up of 100 little squares. Each large square is worth 1. That means that each little square would be worth 0.1. Our job is to find out how many perfect squares we can make out of the 4 large squares. A perfect square is a square in which the side lengths are whole numbers. (Numbers without decimals). Our job after that is to find the side length of a square that uses 2 large squares, 3 large squares, and 5 large squares. So, let's find out! :)

We started out with 1 large square. It's area is 1. This makes it a perfect square because 1 is a whole number. Our next biggest square would have an area of 1.21 because we are adding 21 little squares. (11 on the side, 1o on the top). In order to find the area of a square, you multiply the side length by itself. This would not be a perfect square because 1.21 is not a whole number. Here are the next biggest squares up to 4:

1.44
1.69
1.96
2.25
2.56
2.89
3.24
3.69
4

The only perfect square out of all of those numbers is 4. That means that you can only make 2 perfect squares using 4 large squares.

Now, let's find some side lengths!

2 squares: The side length using one square is 1. If we keep adding to that until another square is used up, we will get a side length of 1.4. (14 little squares on each side).

3 squares: The side length using 2 squares is 1.4. If we keep adding to that until we have used up another square we will get a side length of 1.7. (17 little squares on each side).

5 squares: Earlier, we found out that the area for 4 squares is 4. That means that we have to find out the square root of 4 in order to find the side length. That's easy because everybody should know that 2 x 2 = 4. That means that the side length using 4 squares is 2. If we keep adding to that until we have used up another square, we will get a side length of 2.24. (aprox. 22 little squares on each side).

Friday, November 27, 2009

Jomari's Scribepost, November 26,2009

Today, Mr. Backe' told us some things about square roots.

We started the class learning some things about the squares we made for our previous classes (see the previous scribeposts.).
Here are a few things that we did:

To find the area(the amount of space inside) of a square, we need to find out the length and width and multiply them. Because the sides of a square are all equal, we only need to find one side and multiply it by itself to find the area.
Example:

We also learned that not all squares are perfect squares. Only squares with whole numbers as their sides are perfect squares.
We then learned about square roots. A square root is a number that can equal a given number by multiplying itself by itself.
Example:
Square root of 9 is 3
3²= 9
You can find a square root on a calculator by pressing the
button and the number you want to find the square root of.
Our homework is to find the square roots of all numbers from 5 to 9.

Thursday, November 26, 2009

how I used proportions to save the earth

If i don't do 3 questions from the textbook they will blow up the earth. AAAHHH!!!!!!!!!!!!

The questions i'm doing are from pages 67, and 68

#4 Determine the unit rate.

A] 3 dinner rolls costs 99 cents

99 / 3 = 33

B] 7 identical objects have a mass of 14kg

7 / 14 = 2

#8. Determine the missing value.

A] 2\3 = 10/15

B]

Wednesday, November 25, 2009

Alexs scribepost, Nov. 25/09

Today in class, we added to our big yellow paper.
for example, we had tho squares added together to make one big square but to do that we had to cut up 4 little squares into a whole bunch of pieces and put the pieces so that they fit around the big square you already made.
Today we added two more small squares to the big square to make one really big square and it should look like this.

Today we added the two other squares so now it should look like this.

Now that we got all of the smaller squares put into one big square, we can now make the chart about the side length and the area for all of the squares which would look like

So that is basically all we did in class today so now onto the homework for tonight.
You can make 20 perfect squares with 4 squares because the smallest perfect square is 1x1 and the largest perfect square is 20x20 and there is every thing inbetween.
The approximate side length for 2 squares is 14 little squares, for 3 squares it is 17 little squares, and for 4 squares it is 20 little squares

chantel`s scribepost

hey guys , so today we were continuing building our squares.

How many perfect squares can you make with 4 squares ?

- with 4 squares you can make 1 perfect square because with 2 squares it has a decimal and no equal sides. with 3 squares it wouldn't work either because it has different sides. with 4 squares it work work, because with 4 squares it has a whole number.

What is the approx. side length of a square that uses:

;2sides-
the approximate side length would be 1.2x1.2=1.44
;3sides- the approximate side length would be 1.3x1.3=1.69
;4sides- the approximate side lenght would be 1.4x1.4=1.96

sorry if its not right, at least i tried. please comment (:

Tuesday, November 24, 2009

Deniel's Scribepost!

What we did today! which was... MAKING SQUARES #2

Hey!!!!! OK today we did how to use the grid paper making squares and how to make them bigger so yeah....

OK the first thing was to cut the squares 10x10 , 8x10 and also , 2x10 but after we did that we had to make more so here's my explanation for you guys :)

Explanation: The second thing was to build squares so here are some examples I did and made up one
eg.squaring a number times it by the same number like 2x2 so your doubling the square number or number.Also another thing since 1x1 equals 1 we made it into 0.1 for each cube because of the dimensions in the cube.

As we were making it bigger we had to cut 6 or 7 pieces out but the first piece we had to place was the 8x10 piece and place it on the right or left corner of y
our big sheet of yellow paper then the second thing was to get the 2x10 piece that was the same color as the 8x10 piece that you had to color and
paste it beside the left or right side making it a 10x10 square. After we placed it we used the other 8x10 piece and we had to cut it into 2x10 pieces which left us 3 pieces of 2x10 but the last piece was cut into 2x2 pieces which made 4 because we had to fill in the space on the left or right top corner also the last piece was from the 2x10 because we split in have making 2 pieces of 2x10.The next step was to get that extra piece on the left or right side of the big 14x14 square so
here's a picture to show what it should look like:

I'm sorry for not making a ratio table but i had an idea making it so yeah here are the answers what we did this class and we had to do the area:
As 1x1=1 that was the area of the first answer.
As 1.1x1.1=1.21 that was the area for the second answer.
As 1.2x1.2=1.44 that was the area for the third answer.
As 1.3x1.3=1.69 that was the area for the fourth answer.
As 1.4x1.4=1.96 that was the area for the last and fifth answer.

The biggest area was 1.4 because it was on the edge and we doubled it so yeah.

Also there was a 2x2 square left over and we had to make a really big square using all the pieces so good luck with that!

Another thing is when Mrs.U finished done with the big square she told us a question which was...
Why is there 4 square left over not like the pieces separated like into a square a 2x2 square.

So..... yeah hope you guys like my big scribe post and sorry for posting this in the morning so yeah.
NOW!!! he he...COMMENT

Jecelyn's Scribepost

Well today we were using blocks from graph paper to make squares bigger.

First we started with a 8X10 square and added a 2X10 together so we got 10X10
The we started to add more squares.

Sorry if u can't see it well.

The dimensions are 1x1
so then each cube equals 0.1

To get the other area of the square that is getting bigger we just added more blocks on the sides. Like we added another 2X10 but at the corner we added another 2X2. On my square I added 4= 2X10 and 4=2X2. But here is the thing. I was left with another 2X2. I couldn't add it on cause it wouldnt be a perfect square anymore so here is the homework.

Why are 4 squares left over?

Well you guys hope you enjoyed and please comment cause we all know that 8-16 is the best commenting room!!!!!!

Sunday, November 22, 2009

Justin's scribepost, Nov.20

In class we had to do some factor trees, and add stuff to our fold able.

First our factor trees.

1 - 36

2 - 100

3 - 164

4- 196

5- 225

Next in our foldable we had to write " perfect squars" and square roots " straight down on the last page and and make the page look like this .

For homework we had the questions :
Can you make a square with 1 tile?
Can you make a square with 2 tiles?
Can you make a square with 3 tiles?
Can you make a square with 4 tiles?

And also ...

INTRODUCING YOUR JUNIOR 1 BOYS CITY CHAMPIONS!!!

Friday, November 20, 2009

Scribepost, November 20, 2009

Today we did some square questions and some things in our foldable.

firstly, the questions were
-36
-100
-225
-164
-196

on 36 you can find the factors in two ways

On 100, i think you can only do it in 1 way

On 225

on 196

On the factors of 167 is impossible its hard to find it... :(

Next we did the foldable. We folded our foldables and putted some information. it looks like this
.
UHH.. the notes that we did doesn't really look like this but its pretty close. AND ITS MESSY TOO SORRY. and yeah.. remember to do the homework for math. Have a good weekend.

Telisa's Scribepost, Notation and Prime Factorization

Last class we needed to learn about Notation and Prime Factorization...

Before we could learn that though we needed to review the information we needed to know in order to be able to understand both better.

What are Square Numbers ?

The prouduct of a whole multiplied by itself.

What are Factors ?

A whole number which divided evenly into a whole umber leaving no remainder.

What are Prime Numbers ?

Whole numbers greater than one that can only be divided by one and itself, one isn't a prime number.

What are Prime Factors ?

Factors that are prime numbers.

For Notation we needed to learn what a Square Number was and area ( length multiplied by width )

This is what we got ...

1 = 1 * 1 = 1²

4 = 2 * 2 = 2²

9 = 3 * 3 = 3²

16 = 4 * 4 = 4²

25 = 5 * 5 = 5²

36 = 6 * 6 = 6²

49 = 7 * 7 = 7²

64 = 8 * 8 = 8²

81 = 9 * 9 = 9²

100 = 10 * 10 = 10²

121 = 11 * 11 = 11²

144 = 12 * 12 = 12²

Prime Factorization

To learn this we needed to know what a Prime Factor was, as well as a prime number and factor.

We use this to help narrow down numbes to their Prime Factors and determine if they are Square numbers or not .

examples...

18

/ \

2 9

/\

3 3

18 = 2 * 3 *3

24

/ \

4 6

/\ /\

2 2 2 3

24 = 2 * 2 *2 *3

36

/ \

6 6

/ \ / \

3 2 3 2

36 = 3 * 2 *3 *2

144

/ \

2 72

/\

9 8

/\ /\

3 3 4 2

/\

2 2

144 = 2*3 *3 *2 *2

To get the ² sign hold down alt then 253 on your keypad.

Legend

examples : Black

Me talking : Purple

Definitions : Green

key words : bold

Thursday, November 19, 2009

Bruce's Scribepost, Nov.19

Hey guys,

Well today we went over some of the homeworrk we were assigned to do.
For example...
Factors of...
1-1
2-1,2
3-1,3
4-1,2,4
5-1,5

We also went over some definitions, such as...
Square Numbers-the product of a whole number multiplied by it self
Example...9=3x3
Factors-a whole number which divides evenly into a whole number leaving no remainder.
Example...16=1,2,4,8,16
Prime Numbers-a whole number greater than 1, that has only 2 factors. The 2 factors are 1 and itself.(1 is not a prime number)
Example...
2,3,5,7,11,13
Prime Factors-factors that are prime numbers.
Example...
10=1,2,5,10(the prime factors are 2 and 5)

After homework check we went into Prime Factorization.
Here are a few examples.
18=2x3x3
24=2x2x2x3
36=2x3x2x3
144=3x4x3x4
144=2x2x2x3x2x3
I couldn't draw a factor tree so just look at Ronny's or someone who has a factor tree if you want to understand prime factorization easier.
Than the lady(can't remember her name) told us that the way to find out which one is a perfect square is that it is to have even pairs of the same numbers.
Example...
36=2x3x2x3
2 and 2 are 1 pair
3 and 3 are another pair

If you don't understand what I'm doing ask Mr Harbeck or the other teacher.

Homework is do pages 24 and 25 in your math book.

Wednesday, November 18, 2009

SCRIBEPOST, October 18/09

Squares
Okay so pretty much what we did was we learned how to make and what a perfect square was. So this is what we did yesterday during math class with Mrs. U.
Sorry its so late I had alot going on in the past few days.

Ronny's Scribepost 11/18/09

G'day mates, this be 'ere Ronny to be doin your scribepost!

Today in math class, we got to finish the square area table:

How to do it!

We get the area of the square by squaring the side length.

1x1=1
2x2=4
3x3=9
4x4=16
5x5=25
6x6=36
7x7=49

After finishing that up, we got to do notes! yay

What are square numbers?

The product of a whole number multiplied by itself.

e.g.
9 is a square number because 9=3x3

What are factors?

A whole number which divides evenly into another whole number with no remainder.

e.g.
1--> 1
2--> 1, 2
3--> 1, 3
4--> 1, 2, 4
5--> 1, 5
6--> 1, 2, 3, 6
7--> 1, 7
8--> 1, 2, 4, 8
9--> 1, 3, 9
10-> 1, 2, 5, 10
11-> 1, 11
12-> 1, 2, 3, 4, 6, 12

What are prime numbers?

A whole number greater than 1 that has only 2 factors. 1 and itself. 1 is not a prime number.

e.g.

2,3,5,7,11, ect.

What are prime factors?

Factors that are prime numbers.

e.g.
10
/ \
5 2
/ \
1 1

After we took the "important" notes, we were given our homework. On a grid paper or a white paper, we had to make a times table of 12x12. So here I am to the rescue for you lazy people who don't know how to multiply or use a calculator:

We were also told to find the factors of 1 - 12.

1--> 1
2--> 1, 2
3--> 1, 3
4--> 1, 2, 4
5--> 1, 5
6--> 1, 2, 3, 6
7--> 1, 7
8--> 1, 2, 4, 8
9--> 1, 3, 9
10-> 1, 2, 5, 10
11-> 1, 11
12-> 1, 2, 3, 4, 6, 12

Althea's Scribepost, November 18/09

Hello everyone!!!I am going to tell you of what we did today.....first is we went over our homework from yesterday.

HOMEWORK FROM YESTERDAY:

This is how we got the answer, we multiplied the number by itself.

NOTES:
1.) What are square numbers?

- Square numbers are perfect square. The product of a whole number multiplied by itself.
example:

9= 3 x 3

4= 2 x 2

16= 4 x 4

2.) What are factors?

-Factors are whole numbers which divides evenly into a whole number leaving no remainder.
example:
Factors of 16 are:

3.) What are prime numbers?

- Prime numbers are a whole number greater than one that has only one factors:
Only 1 and itself. One is not a prime number.
examples:

2, 3, 5, 7, 11, 13, 17.. etc.

4.) What are prime factors?

- Prime factors are factors that are prime numbers.

HOMEWORK FOR TODAY:
• Finish multiplication table. (1-12)

Factors
1--> 1
2--> 1, 2
3--> 1, 3
4--> 1, 2, 4
5--> 1, 5
6--> 1, 2, 3, 6
7--> 1, 7
8--> 1, 2, 4, 8
9--> 1, 3, 9
10-> 1, 2, 5, 10
11-> 1, 11
12-> 1, 2, 3, 4, 6, 12

Get a scroller sign at http://www.crazyprofile.com.com!

Tuesday, November 17, 2009

How I stopped an Alien Invasion using Proportions

The first term in Sargent park school is finally over, and the second term stress is yet to happen. But of course the report card stress isn't all the have to deal with. An alien scout has landed and if his computer isn't destroyed with 3 proportion questions answered correctly, the world as we know it is doomed to a fatal existence.

6.Delia was paid \$35 for 5 h of babysitting. How much should she receive for 3 h? Use a unit rate to find the answer.

Delia would receive 21 dollars for 3 hours of babysitting.

11.A small gear turns 18 times in the same time that a large gear turns 4 times. How many times will the large gear turn if the small gear turns 54 times? Draw a diagram to help set up a proportion and solve the problem.

The big gear will have turned 12 times if the small gear turns 54 times.
14. Last night 30 cm of snow fell in 6 h. If it continues snowing at the same rate, how long will it take for 45 cm of snow to fall?Determine the answer two different ways.

If it continued snowing at the same rate it would take 9 hours for the snow to reach 45 cm.
Now that there are three correctly answered portion questions entered into the aliens computer it self-destructs and the alien is left defenseless and flees back to it;s home planet never to return again.

Nhea's Squares, Scribepost, 11/17/09

What are the dimensions of the next 5 biggest squares?
The dimensions are -
1x1
2x2
3x3
4x4
5x5
What are the areas of these squares? draw them using grid paper.
The areas are -
1 - 1
2 - 4
3 - 9
4 - 16
5 - 25
6 - 36
7 - 49
What is the relationship between the side lingth of the square and the area? The relationship would be that if you multiple the side lengths together you would get the area.

Why are the areas called perfect squares or square numbers?
Because the area is made up of the amount of unit squares in a whole square.

Monday, November 16, 2009

how I stopped a alien invation using proportion

An alien landed in the middle of the city and he/she was going to contact the other aliens and destroy the Earth unless if somebody would answer 3 proportion questions and I just happened to be walking by so I will.

#17
Fresh pickerel is advertised in a local market.
2kg
Fresh pickerel
17.5o

a)How much will 6kg of pickerel cost?

6 kg of pickerel will cost \$52.50.

b)Use a proportion to find the cost of 1600g of pickerel.

1g=o.oo1kg 1x1600=16oo/o.oo1x1600=1.6g

1600 g of pickerel will cost \$14.58.

#18
At an amusement park, a new thrill ride was introduced. it costs \$7.50 for 3 rides on the wild slider.

a) what is the wild sliders unite rate per ride?

the wild slider's unit rate per ride would be \$2.50/ride.

b) at this rate how much will it cost for 18 rides on the wild slider? Determine the answer in two different ways.

My first way is

My second way is

#19

Determine the missing value in each equivalent fraction.

a) 3/4=18/44=9/12

b)48km/\$16=144km/\$48=192km/\$64