## Wednesday, September 26, 2007

### How about some comments

Here are 3 examples of what we talked about in class today. Please leave a comment behind telling me what you like about the example (1, 2 or 3) and how does it explain the questions or ideas we were talking about in class.

The questions or ideas were,

1. Fractions are relations, the size or amount of the whole matters.

2. Fractions represent division with a quotient of less than 1.

3. With unit fractions the greater the denominator the smaller the fraction.

Leave a comment behind at you class blog.

Have a good night

Harbeck

## Tuesday, September 25, 2007

### Some Fraction Thinking?!!

1. Fractions are relations-- the size or amount of the whole matters.

2. Fractions may represent division with a quotient less than 1.

3. With unit fractions , the greater the denominator the smaller the piece is.

## Monday, September 24, 2007

### Some Fosnot Homework

We also discussed fractions as division.

In this number string what patterns do you see happening?

How can we use the patterns you recognize in this picture to help us determine whether 10/12 is larger than 5/6?

Welcome to your 3 questions that need to be answered. Once again they are...

1. Today in class we had an excellent Math Congress. All of you agreed that 10/12 was larger than 7/10. How can you prove this to me using words, numbers and pictures?

2. In this number string what patterns do you see happening?

3. How can we use the patterns you recognize in this picture to help us determine whether 10/12 is larger than 5/6?

## Monday, September 17, 2007

### Think before you Blog

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:

- 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.
- 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.
- 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.
- 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

## Wednesday, September 12, 2007

### Field Trip Question

Originally uploaded by hoyasmeg.

Room 43 is going on a field trip. The seventh grade class traveled in four separate cars. The school provided a lunch of submarine sandwiches for each group when they stopped for lunch, the subs were cut and shared as follows:

- The first group had 4 people and shared 3 subs equally.
- The second group had 5 people and shared 4 subs equally.
- The third group had 8 people and shared 7 subs equally.
- The fourth group had 5 people and shared 3 subs equally.

When they returned from the field trip, the children began to argue that the distribution of sandwiches had not been fair, that some children got more to eat than the others. Were they right? Or did everyone get the same amount.

## Tuesday, September 11, 2007

### Amazing chocolate bar

Amazing chocolate bar

Originally uploaded by svandje.

You have a bag with four chocolate bars in it. You promised to give each of your three friends a chocolate bar, and you want one for yourself. How can you accomplish this, and still have one chocolate bar left in the bag?

## Monday, September 10, 2007

### Meet the Teacher 2007

I want your students to communicate math as much as possible. I hope they will use their cellphones, videos, blogs and wiki's to learn in a fun safe environment.

Here is a movie that I created to introduce you to math in Room 17.

- 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.
- 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.
- 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.
- 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.

Examples of Scribe Posts from last year.

LaraMae did a scribe post during our algebra unit. Her scribe included a picture that accuratly depicted a piece of paper that had been folded into 5 columns filled with notes. It was awesome.

Norielle through the use of one image described and explained how to find the surface area of a cylinder.

Dion's Growing Post

The Growing Post Hall Of Fame was created to allow student work to be displayed for the world to see. I am proud of the work that students did last year and am looking forward to this years inductee's.

This years classes will participate in many activities that will prepare them for their future. As parents enjoy their ride through the Sargent Park Math Zone of Room 17. If you dare come along for the ride with them!!

I showed the students this video today. Watch it and see where the world might... is going. It was made by a teacher K. Fisch from Colorado.

Did You Know

Mr. Harbeck

### Wheel Of Cheese

Wheel Of Cheese

Originally uploaded by Cooking Up A Story.

Todays Problem

A waitress had always used 4 straight cuts to cut a cylinder of cheese inot 8 identical pieces. One day, she realized that she could do it only 3 straight cuts! How did she do it?

## Friday, September 07, 2007

### Some weekend work

Oranges are the only fruit

Originally uploaded by Coxar.

Fred bought a bag of oranges on Monday, and ate a third of them. On Tuesday, he ate half of the remaining oranges. On Wednesday, he looked in the bad to find he only had two oranges left. How many oranges were originally in the bag.

Please sign up for a google account if you can

### Some weekend work 841

**841 only**

Hector can run one mile distance from the train station to his parents' house in eight minutes. His younger brother hank can run the same distance 8 times in one hour.

Who is faster?

Please sign up for a google account.