Tuesday, November 28, 2006
I will show you just how many countries are showing up,
Wow. This is why I would like to mention a few points. I love your enthusiasm. I want it to continue. Please for some of the comments you leave use the chat boxes provided to you. comments on peoples blogs must be polite and have no hidden meanings. You are excellent commenters on other peoples scribe posts. I think you do this better then any group I have ever worked with. Please do not stop commenting. Just think before you comment!
I encourage you to strive for excellence and have fun with your blog. It is a legacy that will remain here forever. Please use this tool wisely.
Now with that over I would like to say that the quality of the scribe lately has be beyond my expectations. You are to be congratulated on your terrific work and effort. Keep it going.
Please make note that your first Growing Posts will take place in December. I will keep you informed.
Once again. Remember you have an audience. This blog is an extension of the classroom. Stay in control.
So today in class we corrected our homework. We had to convert numbers into fractions, decimals, percents or ratios. For example 35.5%
Try to convert some of your own like 3:2 into a fraction. Or the ones that you find hardest even if you don't want to it'll be for the best!
Try 5/10 into a percent, 0.66 into a ratio, and 46:98 into a decimal.
6, 6, 8, 14, 14
Conversions and Equivalents
Word problems using Equivalents
Convert the following values so that you can place them on the number line below. Show all your work.
How could you determine whether the average of these numbers is greater than 10 or less than 10 without actually computing the average. Explain how you decided the average was more than or less than 10.
Monday, November 27, 2006
During our second period of math (6th period) we first worked on our equivalents numberline (assignment #2) on the long graph paper Mr.Harbeck had given us.
Your finished assignment should look similar to this :
After being given almost half the class to finish the numberline, we were given another assignment titled "Equivalents Assignment 3". It consisted of 4 questions about percent, decimal, ratio, and fraction. You had to convert each one to each of the 4 listed (fraction, decimal,ratio, percent). At the bottom of the questions were the 'personal reflection' which also had to be answered too. If you did not copy down all the questions in class, assignment #3 can be found at the link below:
If you have forgotten how to convert fractions to decimals or any others, just check your big paper, or janna's scribe (located under Cj's). You may also use these sites I've found:
^^ this site talks about everything we have learned so far in math class. It also contains other things related to math like how to solve word problems, dividing/multiply fractions, and many more.
This all pretty much ended our day. Tomorrow there will be a "pre-test" about ratios, fractions,percents, and decimals. The next scribe will be maaxineriLaaay :) [Maxine A]
`Marielle D. 8-17
With these pieces of data, we were to construct a number line arranging these pieces of data in numerical order:
First, we were to complete a table that showed: the decimal, percent, ratio, or fraction, (that was equivalent to all of the pieces of data); the pieces of data; and all of the equivalents in numerical order:
Then we were to start a rough copy of what we were going to put on the long sheet of graph paper, Mr. Harbeck would be handing out:
On this long sheet of graph paper, we would put what we placed on our table; but the pieces of data would either above or below the number line; showing us what equivalent it matches up with. The equivalents would then be placed above or below, (depending on where you put your pieces of data), and it would, too, match up with its equivalent. However, the numbers would not just be placed ANYWHERE on the number line, but it would be arranged from SMALLEST to LARGEST. In this case below, the pieces of data and equivalents are arranged from 0.1-1.0:
THE NEXT SCRIBE POSTER IS DOCTOR, (MARIELLE D the MD).
Saturday, November 25, 2006
Well, since Aaron didn't complete or try to do his scribe I get to do the honours of replacing him. To start off class we looked at our homework as quick as we could since we didn't get math the next day(which was Wednesday). Our homework was to find the formula of getting the following below:
to Fraction: The first number or part of the ratio will be the numerator of the fraction. Add the numerator and the denominator to get the second number in the fraction. Part to part.
Example: Ratio is 3:1. Numerator is 3 since 3 is the first number. 3+1=4. 4 is the denominator.
to Decimal: Get a fraction from the Ratio by using the formula above. Then divide the numerator by the denominator to get the decimal.
Example: Ratio is 4:2. Fraction is 4/6. 4 divided by 6 = 0.666666666667
to Percent: First get a fraction form the Ratio. Take the Numerator and divide it by the Denominator to get a decimal. Multiply the decimal by 100.
Example: Ratio is 2:5. Fraction is 2/7. 2 divided by 7= 0.285714 (repeated) x 100= 28.5714285714
to Decimal: Divide the numerator by the Denominator
Example: Fraction is 3/5. 3 divided by 5 = 0.6
to Percent: Divide the Numerator by the Denominator. Take the decimal and multiply it by 100.
Example: Fraction is 1/3. 1 divided by 3 = 0.333333(repeated) x 100= 33.333333(reapeated)
to Ratio: Take the Numerator and make it the first number in the ratio. Then add the numerator and the denominator to get the second number in the ratio.
Example: Fraction is 4/1. 4 is your first number or part. 4+1=5. 5 is your second number or part.
to Fraction: Say the number --> Write the number.
Example: Decimal is 0.48. Say it. 48 hundredths. write it, 48/100.
to Ratio: Turn the decimal to a fraction first. Then take the numerator and make it the first number in the ratio. Take the denominator and subtract the numerator from it to get
the second number in the ratio.
Example: Fraction is 3/8. 3 is the numerator so its the first number or part. 8-3=5. 5 is the second number or part. Ratio is 3:5
to Percent: Take the decimal and multiply it by 100. Simplify if you can.
Example: Decimal is o.83. 0.83 x 100= 83 83/100
to Ratio: Take the percentage and get rid of the percent sign. That will be the first number or part. Then subtract the percentage by the value of the bottom number(usually 100) to give you the second number or part.
First number in ratio = the percent
Second number in ratio = (value of number e.g. 100) 100 - percentage
Example: Percent is 46%. 46
to Decimal: Take away the percent signs and divided by 100.
to Fraction: Since percents are out of 100, just take the percent put it over 100 and take away the percent signs. Then Simplify.
Complete the following for our portfolio's':
1. Equivalent Chart
2. Big Paper
3. Quiz 1
4. Equivalent Assignment
5. Quiz 2
Our homework was to finish off boxes four and five on our big papers. It would be ___ to ___ in box 4. Then in box five the formula. (box 3 should be full of pictures).
Also the Equivalent worksheet found below my post, should be completed. The one where you have to find 4 decimals using 1-2-3-4-5-6-7-8-9 and then use your formulas to get the fraction, ratio and percent for them all.
Some websites you can visit are found below:
This site gives you different questions for fractions, ratios, decimals and percents, such as finding fractions from coloured grids. Then compare it to other fractions, ratios, decimals and percents. It also gives you the answer when you click on the word "answer". It includes questions and some ways of solving these problems.
This site shows you formulas to get certain thins from something. Such as a fraction to a ratio ...etc. It is not as useful as the first site above, but it does help if you get stuck on the homework and work shown above in my scribe.
The Next Scribe Is Carmie-Jane (C.J.)
Tuesday, November 21, 2006
Equivalents The Assignment
1. Make 4 different fractions using the digits below. You may only use each digit once. Convert these 4 fractions into decimals, percents and ratios.
1, 2, 3, 4, 5, 6, 7, 8, 9
2. Make 4 different decimal using the digits below. You may only use each digit once. Convert these 4 decimals into fractions, percents and ratios. (Do not use the decimals from the question above).
1, 2, 3, 4, 5, 6, 7, 8, 9
3. Make 4 different percents using the digits below. You may only use each digit once. Convert these 4 percents into fractions, decimals and ratios. (Do not use the fractions and decimals from the questions above).
1, 2, 3, 4, 5, 6, 7, 8, 9
4. Make 4 different ratios using the digits below. You may only use each digit once. Convert these 4 ratios into fractions, decimals and percents. (Do not use the fractions and decimals or percents from the questions above).
1, 2, 3, 4, 5, 6, 7, 8, 9
Sunday, November 19, 2006
Today we start a big paper and in the morning we did a Quiz about fraction, decimal, percentage and ratio.
Mr. Harbeck tell us to found the definition for fraction, decimal, percentage.
And then Mr. Henly shows us one example of ration.
you have 7 candy bars. 3 of them are kit Kat's and 4 of them are mars.
3/7 # 3 is kit Kat's and # 7 is candy bars
4/7 # 4 is mars and # 7 is candy bars
5- Part and 8 - whole
5 and 3 are Part and Part means whole
and that's the example of ratio.
In the after noon, we work on group of four or three and share our definition, and also we did are second Quiz. Its about ratio because many of us didn't understand ratio.
well this is my scribe for today......
thank you for reading it and the next
scribe isssss uhmmm aaron
yeeeessss I'm dooonee
Friday, November 17, 2006
Then we got split in groups and got this paper and cards with pictures of decimals, percent, fractions, and pictures.
Ratio tells how one number is related to another number is related to another. A ratio may be written as " A:B " or the phrase " A to B" . A ratio of 1:5 says that the second number is 5 times as large as the first. The following steps will allow determination of a number when one number and the ratio between the numbers is given.
Determine the value of the B if A:B and hte ratio of A:B = 25
-determine how many times the valiable A is divisible by the corresponding portion of the ratio. (6/2=3
-multiply this number by the portion of the ratio prestenting B(3x5=15)
-Therefore if the ratio of A:B is 2:5 and A=6 then B+15
Next scribe is Fiel
Tuesday, November 14, 2006
Way to go Room 17. You did seven scribes for seven classes. That is perfect. You are the only class to do this. Keep it up during the Percent Unit. It starts tomorrow. Check the scribe list to see who the scribe can be!!
Remember a good scribe has images, words and links to helpful places to understand the lesson you are scribing.
Monday, November 13, 2006
this are some of the example that we have on the test:
√22 = 25 - 16= 9 6 /9
22 - 16= 6
√34 = 36 - 25= 11 3/11
34 - 25= 9
mean, median, mode
24 38 36 78 53
red 8 (gray,yellow)
gray 3 10/22 10÷22=0.454 x 100= 45.4%
well this is my scribe for today.......
thank you for reading it and the next
scribe is Romel
1-4= /3 so you subtract the smaller perfect square to the larger perfect square.
And then after that he asked us what are the steps for doing this, and then Jannah answered:
1. Find the perfect squares on either side of the square root you are trying to solve.
2. Subtract the smaller perfect square from the larger perfect square.
3. Answer is your denominator.
Mr.Hanley give us this questions to answer:
Estimate each Square Root using FRACTIONS.
/67 /45 /15 /39 /57 /23
/31 /79 /8 /99 /86 /739
/666 /578 /433 /176 /333 /260
A farm has 7 equal square fields with a total area of 616 acres 2. Estimate the dimensions of each field using fractions.
In the afternoon Mr.Hanley give us back our quiz #1 and we have to do the corrections. After we did our corrections, we did our quiz #2 at the back of our paper, and when we finish our quiz he asked us if we have any questions on what were doing and nobody answered. And Mr.Hanley give us a word problems for homework.
Square Root Word Problems
a. Surinam, in South America, is roughly shaped like a square. It covers an area of about 100 489 km2. Find the length of each side of Surinam.
b. A warehouse has an area of 5808 m2. It is divided into 12 equal square sections. Find the dimensions of each section.
c.Estimate the following square roots using fractions:
/78 /189 /90 /34 /125
/145 /66 /218 /756 /867
/493 /555 /389 /678 /299
well that's my scribe post for today thank you for reading it
and the is.........Rommel.
Wednesday, November 08, 2006
When we start the class MR. HANLEY the tallest guy in the room asked as to solve the square root of 110.
When we finish solving it, MR. HANLEY asked us if do we had any ideas to estimate the square root.
when Jamie told him other idea,he told us the main topic of the subject today, HOW TO ESTIMATE THE SQUARE TO FRACTION.
find the square roots of these number and is it perfect or not:
1) 25 = 5x5 perfect square
2) 89 = 9.?x9.? not perfect square
3) 64 = 8x8 perfect square
4) 225 = 15x15 perfect square
5) 169 = 13x13 perfect square
6) 784 = 28x28 perfect square
7) 625 = 25x25 perfect square
8) 49 = 7x7 perfect square
9) 594 = 24.?x24.? not perfect square
10) 121 = 11x11 perfect square
11) 765 = 27.?x27.? not perfect square
12) 429 = 20.?20.? not perfect square
13) 654 = 25.?x25.? not perfect square
14) 6 = 2.?x2.? not perfect square
15) 333 = 18.?x18.? not perfect square
16) 852 = 29.?x29.? not perfect square
17) 199 = 14.?x14.? not perfect square
18) 841 = 29x29 perfect square
A warehouse has an area of 2940 meter square. It is divided into 15 equal sections. Find the dimensions of each section.
2940x2940 = 8 643 600
8 643 600 / 15 = 576 240
Each section has 576 240. The square root of 576 240 is 759.1 so its not perfect square
Perfect does not have decimals
tomorrow's scribe isssssssssssssss Ian
Tuesday, November 07, 2006
The first part of class we pulled out our homework from yesterday. After we used these tiles to try to make a square out of 10 tiles.
But no one can do it until Mr.Hanly showed us how. He showed us that if it is 4x4 so that would make it a perfect square but if we had to do 3x3, We wouldnt be able to make it perfect, so we give it a mullet. Like if it didnt have enough to make it perfect, it would get a mullet.
New Numbers for homework.
Make squares out of all the numbers
Next scribe is Jorel.
Saturday, November 04, 2006
What we did:
4 x3 = 12
What shape do u make when multiply?
all rectangles with 10 squares.
Factors = product
the fast way would be: 4 whith a litle small 2
beside the 4 ...
A perfect square whose side leghts are ''whole numbers''
make a chart:
fraction exponent area
x1 1square2 1unit2
2x2 2square2 4unit2
3x3 3square3 9unit2
make the continuous lines of the chart to "30x30"
****do not pay attention to this scribe***** it is a re-copy
Why is this a square perfect? This square is perfect because there are 3 going across and 3 going down. So this square is a 3x3 square. There is an easier way to write this though. Another way is 3 to the power of 2, or 3 squared, or 3 with a small 2.
Numbers like 1, 4, 9, 16, ect. Can be made into perfect squares. These numbers have something in common. They have whole square root numbers.
What is a square root? The square root is a number multiplied by itself giving you the square root of a number. For example: The square root of 25 is 5 because when you mulitiply 5 by 5 it gives you 25.
Try it on your calculator. The symbol should look like a division sign( usually you have to use second function) then punch in the S.R. sign then the number 9. What does it give you? the number should be 3 because 3x3=9. So the square root of 9 is 3.
What if the number can't be made into a perfect square? Mostly all numbers can be made into a perfect square. For example if i want to make a square out of 6. This is what you probably would get.
Is this a perfect square? Ask yourself these questions. Does it have equal sides? Does it have the same factors? Well, you can turn this rectangle into a perfect square. First try to make the largest perfect square you can make, it's ok if you have remaining
squares. This is what you should have.
Now, you have a perfect square. But what do you do with the remaining 2 squares. You must now think of the 2 squares as just pieces that you can put around the square. Like this:
Now, imagine you take one half of the 2 saquares and put it horizontally on top the the square and the other half next to the square vertically.
What do you get? You should get something that would look like this
The squares that you add become the Mullet of the square. The mullet is the remaing squares. Instead of having whole factors they become whole factors with decimals. The mullet is added to squares that do not have whole factor numbers. You can think of the mullet as hair. The more remaining squares you have the longer or bigger the hair(mullet) gets. The less remainders you have the smaller the hair(mullet) is. So the measurments of a perfect square with an area of 6 is 2.44x2.44 or 2.44 to the power of 2.
Mr. Harbeck gave us a test on probability and mean, median and mode, so if you weren't here on that day you will probably take it the next time we have class.
He also assigned an assignment dealing withe perefect squares. We were given 2 sheets of graph paper and 1 long white peice of paper. You where so post to make perefect squares from 1-16. Four of the squares would have no mullet(1,4,9,16) the rest would have a mullets. If you weren't sure how to paste them onto the paper you could save the squares(ready to paste) and wait till next class.
I'll show you how to get started. This is what the first part should look like this
you have to write the factors, the exponent and and what the area of the square is.
Assignments that are due.
Perfect sqaure chart-three columns(factors, exponent, area) e.g. 25x25, 25 to the power of 2, 625 unit squared.
Journal #1- Which of the numbers are perfect squares? 6,8,9,10, Justify your answers. Prove using pictures, words and numbers.
Journal #2-Make perfect squares out of 6,8,9,10,12,14,17.
Perfect square-long paper withe squares from 1-16*see assignments*
Now, for the next scribe..........
Wednesday, November 01, 2006
During this unit the Scribes will be at work. Please choose a person from the Scribe List to be the next scribe. The Scribe list can be found in the sidebar under the category other Sargent Park Math Blogs. Tell that person at school as well as on your scribe post. Please label your post Scribepost.
Homework Assignment 1
Which of these numbers can be Perfect Squares. 6,8,9,10. Justify your answers using pictures, words or numbers.