Tuesday, February 7, 2017

Order of Operations


This week in math we're learning about the Order of Operations.

and Operations
in a Formation...

Watch this video and you'll see what I mean!

Do NOT blame me if that song is stuck in your head until 2023.

Many things in math are not up for interpretation. We need to agree on certain math rules in order for  for humans to calculate numbers and communicate accurately.

For example, if you are ordering new carpet and the guy at Carl's Carpet Center asks you what the square footage of your bedroom is, you should both have an understanding of area. If you calculate differently, you may end up with too much or not enough lime green wool shag. (I had lime green shag carpet in my bedroom when I was your age, so don't laugh.)

"The Order of Operations is very important when simplifying expressions and equations. The Order of Operations is a standard that defines the order in which you should simplify different operations such as addition, subtraction, multiplication and division. 

This standard is critical to simplifying and solving different algebra problems. Without it, two different people may interpret an equation or expression in different ways and come up with different answers. The Order of Operations is shown below." (algebrahelp.com)

What's the difference between parentheses and brackets?

Sometimes parentheses are called "round brackets" because of their shape.

( )

Square brackets remind me of staples that hold the numbers together.

[ ]

When dealing with parentheses and brackets...

For more information, games and other resources, click the links below!

Here is a sample student notebook page. 
Click on the image to get a closer look.

Please make sure your notebook is up to date before our next class. 

Friday, February 3, 2017

Punxsutawney Phil's Big Day!


Every February 2, thousands of people from all over the country gather in Gobbler’s Knob, in the town of Punxsutawney, Pennsylvania, to witness a famous groundhog's prediction.

When Phil comes out of his house, the first thing he will do is check for his shadow...
because that's his job.

His shadow (or lack of one) will predict the fate of our seasons.

Here is a handy chart to help illustrate the strenuous task 
of being Punxsutawney Phil on February 2.

Makes perfect sense to me.

What did Punxsutawney Phil predict this time? Watch this video to find out.

When the first settlers arrived in Punxsutawney, Pennsylvania, they brought with them a German tradition known as Candlemas Day.

If the sun shone on Candlemas Day, the hedgehog would cast a shadow which they believed meant another six weeks of winter.

When the Germans first arrived in America, no hedgehogs were to be found. Another similar animal, the groundhog, was here. Believed by the native Indians to be "a wise and sensible animal," the groundhog became the new season predictor.

So it is, that the tradition was born.

Want more? Check out these links!

What do you think Phil likes to do in his spare time?

Click the image below for a free printable!

Thanks Phil!