Lances Proportion Post

ratio: the relation between two similar magnitudes with respect to the number of times the first contains the second eg. the ratio of 5 to 2, written 5:2 or 5/2.

rate: A ratio that compares two quantities measured in different units eg 15 to 20 or 15:20

proportion: comparative relation between things or magnitudes as to size, quantity, number, etc.; ratio.



1) 5 hours to travel 360 miles is about  72 mph

                   ÷2
hrs      5         1
----    ----- = -----             
miles  360     72
                   ÷2
2)As a playgroup worker, if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.

                           x4
 apple j    25ml   100ml
---------   --------- = ----------       You should increase 50 to 200 ml of orange juice
orange j   50ml   200ml
                          x4

3)What are the three ways you can prove that equivalent ratio statements are true? 3/4=12/16 diagonally (multiply top left and bottom right) vertically, and horizontally.


4)



5)

http://www.concurringopinions.com/wp-content/uploads/2011/10/CrimeInAmerica2.jpg

 1)Does this seem fair?
    No it isn't fair
 2)With what you know about proportion look and read what is in the image above.  Does it seem just and fair? Why have you made this choice?
It isnt fair because the CEO gets a 40 Month sentence for a 3Billion fraud and a homeless man steals $100 and gets a 15 year sentence ITS NOT FAIR!!!!
 3)What would you have done if you were the judge?
I would just give him a 2 week sentence and he is free to go

philip's Proportion Post

ratio:Comparitive value of two or more amount. Can be written as 3:4 or as a fraction

rate:A ratio that compares two quantities measured in different units eg

proportion:A part to whole comparison eg 3:4=9:12

5 hours to travel 360 miles is about 72 mph

As a playgroup worker, if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.You should increase it to 200(x4)

What are the three ways you can prove that equivalent ratio statements are true?
3/4=12/16 diagonally (times top left to bottom right) vertically and horizontally



http://www.concurringopinions.com/wp-content/uploads/2011/10/CrimeInAmerica2.jpg

1. Does this seem fair?Not at all.
   
2. With what you know about proportion look and read what is in the image above. Does it seem just and fair?Not at all Why have you made this choice.Just look at the pictures, he frauded 3billion but only 3.5 years of prison and the other guy stole $100 but gave it back and surrenderd to police and got 15 years?!?!?Its crazy.
   
3. What would you have done if you were the judge?I would have given him 62 hours of community service.
   

Your First Post and it is about..... proportion

Welcome to your blogs.  Your first post will be a wrap up of your proportion unit.  You need to have a review of all the work you have done.  None of this will be new.  Consider it the first chapter in your exam review!! Yep I said the "E" word EXAM!! It will also remind you of all the fantastic things you can do to make a blog post pop instead of being boring.

Task 1 

Please define

• ratio
• rate
• proportion

Good definitions have pictures, words and examples.

Task 2 

Copy these questions into your post.  Answer them using proportion statements.

1. 5 hours to travel 360 miles is about _____mph
2. As a playgroup worker, if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.

Task 3

What are the three ways you can prove that equivalent ratio statements are true?
3/4 = 12/16  or 4/9 = 16/32

Task 4

Find a video about using proportion and embed it in your post.  Make sure you select the small size of the video.

Task 5

We are starting to engage in discussions about social justice.  What do you think about this image below.  Use the link to copy it into your post.  Then answer the questions

http://www.concurringopinions.com/wp-content/uploads/2011/10/CrimeInAmerica2.jpg

1. Does this seem fair? 
2. With what you know about proportion look and read what is in the image above.  Does it seem just and fair? Why have you made this choice? 
3. What would you have done if you were the judge?

Title your post _______'s Proportion Post
Label your post username817 (Bif817, Mortimer814 etc) and proportion post (two words lower case)

Due Date Friday October 14th

Welcome to your Math Blog

A Colleague of mine Mr. Kuropatwa created this post for his students. Since it is Internet Safety Week please pay attention to the videos below.

Blogging is a very public activity. Anything that gets posted on the internet stays there. Forever. Deleting a post simply removes it from the blog it was posted to. Copies of the post may exist scattered all over the internet. I have come across posts from my students on blogs as far away as Sweden! That is why we are being so careful to respect your privacy and using first names only. We do not use pictures of ourselves. If you really want a graphic image associated with your posting use an avatar -- a picture of something that represents you but IS NOT of you.

Here are a few videos that illustrate some of what I want you to think about:




Two teachers in the U.S.A. worked with their classes to come up with a list of guidelines for student bloggers.

One of them, Bud Hunt, has these suggestions, among others:

1. Students using blogs are expected to treat blogspaces as classroom spaces. Speech that is inappropriate for class is not appropriate for our blog. While we encourage you to engage in debate and conversation with other bloggers, we also expect that you will conduct yourself in a manner reflective of a representative of this school.
2. Never EVER EVER give out or record personal information on our blog. Our blog exists as a public space on the Internet. Don’t share anything that you don’t want the world to know. For your safety, be careful what you say, too. Don’t give out your phone number or home address. This is particularly important to remember if you have a personal online journal or blog elsewhere.
3. Again, your blog is a public space. And if you put it on the Internet, odds are really good that it will stay on the Internet. Always. That means ten years from now when you are looking for a job, it might be possible for an employer to discover some really hateful and immature things you said when you were younger and more prone to foolish things. Be sure that anything you write you are proud of. It can come back to haunt you if you don’t.
4. Never link to something you haven’t read. While it isn’t your job to police the Internet, when you link to something, you should make sure it is something that you really want to be associated with. If a link contains material that might be creepy or make some people uncomfortable, you should probably try a different source.

Another teacher, Steve Lazar, developed a set of guidelines in consultation with his students. You can read them here.

Look over the guidelines and add the ones you like in the comments section below this post; either from one of Steve's students or one of your own. I think Bud's suggestions are excellent. We'll be using the one's I highlighted above as a basis for how we will use our blog.

Cheers,
Mr. K.

I could not have written it any better. Enjoy blogging and use your head. Thanks

Mr. Harbeck