Math Congress: Part Three

Here's our third video from the Math Congress this morning. To see the other videos and the poster, just scroll down!

Math Congress: Part Two

Here's the second video from our Math Congress this morning! Look below this post for our first video and a picture of our chart.

Math Congress: Part One

Today in school, we had a Math Congress about the factors of 24. Our goal was not just to figure out what the factors of 24 were--we did that easily--but to prove to another mathematician how we knew we had all the factors. Here are some snippets of our conversation today. You can use these videos to help you as you write about what you learned from our Math Congress today. Each video will be in a separate post!

We also charted some of the conjectures we discovered about finding factors. You can click on the chart to enlarge it.

Math Congress: Sharing our Strategies (by Will and Asa)

We made posters in math that showed our thinking on the Teachers' Lounge problems. We showed our strategies on the ELMO, and we told our strategies to the class. We then let the class solve our problems the way we did it. We showed our work using math equations, and then we explained what we did. Everyone learned a lot by our presentations. We learned a new way to solve the problems, like instead of using Partial Products you could use division (Partial Quotients). We had a great time sharing!!!!! Here are some videos of us sharing our strategies.

The Teachers' Lounge

On Monday, we started a new unit called "The Teachers' Lounge." During this unit, we'll explore different situations and conversations that occur in the Teachers' Lounge. Here's our first one: 

Yesterday in the teacher’s lounge, I bumped into the woman that fills the vending machines.  One vending machine holds water, and the other vending machine holds juice.  I was curious about how many bottles the machines each held, and she told me that each machine holds 156 bottles!

The Water Machine

I noticed that there were a bunch of six packs next to the water vending machine—the woman had to tear the packs open in order to fill the machine.  That got me thinking.  I wonder how many six packs the machine will hold?

The Juice Machine

The other vending machine holds juice.  It also holds 156 bottles.  There are six different flavors of juice—apple, cranberry, lemonade, grapefruit, grape and orange.  The machine holds an equal amount of each kind of juice.  I was wondering how many bottles of each flavor fit in the juice machine when it is full?

 

The posters below show our work! Click on a poster to enlarge it!

Natalija and Kate

Wriley and Hadi

Parker and Aiden

Zora and Dante

Arya and Malinee

Jack and Hayden

Fabiano and AJ

Asia and Cheyanne

Josiah and Sofia

Freya and Louise

Greg and Gerrit

Will and Asa

Madison and Veronica

Hip, Hip, Array!

We dove into our first math unit on multiplication with an array hunt. We searched for arrays (rectangular arrangements of rows and columns) all around our classroom. Here are some of the arrays we found:

A 1x3 array!

A 26x2 array!

A 2x2 array!

A 3x9 array!

A 2x2 array!

A 7x3 array!

A 3x10 array!

Are there any arrays at your house? In your neighborhood? Describe them in the comments!