tags: 3.OA

tags: 3.OA
We found 15 post available for you

Is 2024 a special number?

Image by dashu83 on Freepik Students are introduced to some esoteric number categories as they check out the various descriptors of this year's date.  What's a Harshad number?  What's a...

Will the Barbie movie out-perform Avatar at the box office?

The Barbie Movie is still doing well in the theaters.  It has only been 6 1/2 weeks since its debut.  Do you think that it can out-earn Avatar?  Students study the numbers, recognize ...

Will I have enough stuff?

Thursday, Aug 10th, is National S'mores Day! In my pantry I have one new box of Graham crackers, one bag of 6 full-sized Hershey bars, and one bag of marshmallows. Friends are meeting me at the b...

Is 2023 a special number?

1998 was a Harshad year. What do you notice about the number 2023? What is a Harshad number? Does 2023 meet the criteria? Big deal?  Rare?  Often?

The Algebra of Magic Squares

Have you seen magic squares before? How could a teacher use these puzzles to help students with different number skills? How few blank cells could you leave? Are there any special cel...

Jennifer Fairbanks from Hopkinton, MA sent us this picture of the cookies that she baked in 4 hours using 13 eggs and 5 cups of sugar. Do you see some math here? Do you have an add...

Gauss and our star of stars

How many stars are in this image and how did you count them? For Adventurer members we have a teaching suggestions and our solution sheet.

What time should I wake up?

I'm going to surprise my mom with breakfast in bed for Mother's Day. She wakes up pretty early. When do I have to wake up to pull this off?

February 22, 2022

Why do you suppose we are posting this date as a topic for YummyMath? What do you think is so special about this date? Does this happen often?  When might a similar day occur?

Will our U.S. flag change yet again?

How many stripes are in our present flag?  (The bottom right flag that has been in use since 1960; See the PowerPoint) How many stars? What do the numbers of stars and strip...