tags: 3.OA

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

Is 2024 a special number?

Algebra Number Sense Current events Any time math
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?

Algebra Number Sense Math and Social Studies Current events Data and probability
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?

Algebra Number Sense Math and Food Current events Ratio and Proportion Wow factor
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?

Algebra Number Sense Current events
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

Algebra Number Sense
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...

Whole lot of cookies

Algebra Number Sense Math and Food Holidays and Annual Events Ratio and Proportion Wow factor
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

Number Sense Geometry Math and Art
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?

Number Sense Math and Food Holidays and Annual Events
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

Algebra Number Sense Current events
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?

Algebra Geometry Math and Social Studies Current events
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...
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