Ask Dr. Data A Question

Dr. Data needs more work, please ask him a question by making a comment in the comment section of this post.

Real World Geometry

We found some examples of real world Geometry. We hope this helps you to spot Geometry in the world around you.

Geometry In the Real World

Dr. Data,

Where can I find examples of transformational geometry (e.g. flips, slides, reflections) in the real world?

Dear Anonymous,

We found these real would example of geometry. We hope that you can find some of your own after looking at our keynote.

Notice

Dear Readers,

I have learned that some of you are having a little difficulty with our comment section of the blog. We may have a broken link in our blog chain. Sometimes readers have to click on the word "post" twice after making a comment in order for the comment to go through. If you happen to get an error message when trying to leave us a question in the comment box, please try clicking "post" a second time. That usually takes care of the problem. Sorry for the technical difficulties.

Dr. Data

Fact Families

Dear Dr. Data,

My class was wondering is there a limit to how many numbers can be in a fact family?

Dear 4th graders,

Look at the picture above (you can enlarge it by clicking on it; hopefully, it will answer your question.

Multiplying Numbers

Dr. Doctor Data,

Do you have any tricks for working two digit multiplication problems.


Dear 4th graders,

Yes, we do. It is called Lattice Multiplication. We created a short video to show you how.

Time

Dear Dr. Data,

We are working on elapsed time. Can you help us to learn that?


Dear 4th graders,

Sure. We have solved the following problem using tally marks. That is only one way to solve problems with elapsed time.

Time