Order of Operations

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

Numbers 

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 2034.

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!

Cool Math

Khan Academy

Dad's Worksheets

Order of Operations Game 

Watch this video for a review!

The Density Experiment

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We've Got a Line Plot!

 

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How many birds visited my feeder this week? 

Which day had the least amount of visitors? 

Which day had the most visitors?

How many more birds visited on Friday than on Saturday?

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History Unit 5 Test Due Today!

 

How to Divide Decimals by Decimals

Hey Friends! This week we are going to divide decimals by decimals! What does it mean to divide?

Yep! Make equal parts or groups! 

To divide decimals correctly, you have to remember 3 things.

1. Use graph paper or turn your notebook sideways to line up your numbers correctly.
2. Move the decimal, so that your divisor is a whole number. What you do to the divisor, you do to the dividend.
3. Use your mad long division skillz to solve. 

Here's a quick video lesson...

One more example...

 

Click here for the whole lesson!

Dividing Decimals and Whole Numbers

CLICK HERE FOR VIRTUAL BASE-10 BLOCKS!

Water Cycle in a Jar!

How does the earth recycle water?

The water on our Earth today is the same water that’s been here since the Earth began. So far, we haven’t managed to create any new water. 

The only thing that changes is the form that water takes as it travels through its cycle. Water exists at the Earth's surface as liquid, solid, and vapor. It is forever changing from one of those three states to another. The water moves from the ocean to the air to the land and back again. The endless movement of water in nature is called... 

...and here's a not at all cheesy and totally awesome Water Cycle song 

with the CUTEST lil' drop dude. 💙

Here is the Water Cycle Model we made in class today. 

Don't forget to complete the Lab Report in Classkick:

Draw/color the model.

Label the parts of the water cycle.

Add 2-3 observations.