Angles

Dear Dr. Data,

My teacher has been talking about angles. Can you help me learn the difference between obtuse, acute and right angles?

Vocabulary

We have created more vocabulary posters for you at the Data Lab.

How to measure an angle

Dear Dr.Data,

I've always wanted to know how to measure an angle?

Dear Student,

My assistant, Ryle, has created a video just for you.

Posters

Here are some of our Vocabulary Posters.

Vocabulary

Dear Dr. Data Followers,

Here at the Math Lab we have been creating math vocabulary posters. We have posted some on our blog. We hope you enjoy them.

Dr. Data

Congruent

Can you tell what the word congruent means from this word cloud?

Even and Odd Numbers

Dear Dr. Data,

If you add an even number to an even number will the sum be odd or even? What about adding and odd number plus an odd number, will the sum be odd or even?

Sincerely,
4th grade students


Dear Students,
Now that is a very good question. Let's see if we can answer that for you in this video.

Multiplying Fractions

Dear Doctor Data,

I am a fifth grader and I would like to know how to multiply fractions. I am confused about denominators. Do I have to make them the same when I multiply fractions?


Dear Fifth Grader,

You don't need a common denominator when you multiply fractions only when you add or subtract. Watch this video to learn how to multiply fractions.

Improper Fractions

Dr. Data, my teacher keeps talking about changing an improper fraction to a mixed number. I'm confused. Can you please show me how to change an improper fraction into a mixed number?


Dr. Data is always on call, and I've got the perfect team members to help you. Here are two of them to show you how to solve your problem.

Happy Calculating from your friend,
Dr. Data

Multiplying Decimals

Dear Dr. Data,

We had a problem like this in our math books: A chocolate chip cookies is .25 cents. Bob wants to buy 7 of them. What is the total amount of money he will pay for the cookies. We don't know how to multiple decimals. Can you help us?


Sure here is a short video that shows you how to multiple decimals. We will use your problem as an example.

Sincerely Yours,

Dr. Data

Communitive Properity

Please explain the Communitive Property for addition and multiplication and give me an example.

Thanks,
Rylie

Dear Dr. Data

Greeting to you! We are the students in Mr. Styes' class. We have some math questions for you that we need your help with. Here they are:

Why do the numbers on each side of an equation have to balance? Ex: 5+5+5=7+8

Why can a t-table (aka input-output table) be standing up or lying on its side? And we're wondering if there is ever a limit to how many numbers you can put on a t-table. In other words, will there ever be a time when you run out of numbers to put on it?

We know we are really bright mathematicians because we do Algebra in 4th grade. Will we get to do it in 6th grade too?

Thanks for your help, Dr. Data. We'll be looking forward to your response.

Until next time!
Mr. Styes' 4th grader class.