Number Sense

Grade

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Heating with wood - What's a cord?

Algebra Number Sense Geometry Ratio and Proportion Any time math
Do you know what a cord of wood looks like? What size stack is that? What's a thrown stack? What's the dog's name that is standing in front of the wood? How long can I heat my house with that much fue...

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

Algebra Number Sense Social Studies Current events Probability and Statistics
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 ...

What do you know about the Hawaiian islands?

Algebra Number Sense Science Social Studies Current events Probability and Statistics Any time math
We’ve been watching news about the extreme wild fires, draught and winds that have devastated parts of the Hawaiian Islands. Let your students explore Hawaii and better understand its d...

Wildfires and particulate matter

Algebra Number Sense Science Current events Probability and Statistics
Wildfires in Canada have been spreading dangerous smoke pollution throughout much of North America. What is a dangerous size of particles per cubic meter (PM)? How tiny is th...

Father's Day and Juneteenth; 3 Activities

Algebra Number Sense Social Studies Food Holidays Current events Ratio and Proportion Probability and Statistics
 For Father's Day (Links to different activities)   Thank you, mother and father, for all of those diapers  - Students compare the cost of buying disposable versus cloth diape...

The 8th billion baby

Number Sense Social Studies Current events Ratio and Proportion Probability and Statistics
  How fast is the world's population growing? Will the world's population size increase indefinitely?  Are all countries' populations increasing at the same rate? What are some of the f...

Effects of new MLB rules

Algebra Number Sense Sports Current events Probability and Statistics
This year new rules have been added to Major League Baseball. Pitchers and batters are no longer allowed to "dawdle" or delay the game. The bases are larger. Now pitchers...

Willy Makeit or Betty Wont

Number Sense Geometry Ratio and Proportion Funny Wow factor
I have to go to the bathroom pretty badly. I have to admit that I have been holding it in for a while.  Finally!  I see a bathroom sign!  Wait ... it is in kilometers?  How...

How old are you?

Algebra Number Sense Ratio and Proportion Wow factor
We usually give our ages in years, but that isn't very precise is it?  In this activity students find their age in days, hours and minutes.  First students take two minutes to estimate the...

Beijing Olympic Schedule 2022

Number Sense Sports Holidays Current events Probability and Statistics
The Winter Olympics begins this week in Beijing. Wikipedia had this schedule of events. We think that there is a lot of information missing and apparent in this graphic. What can you tell, wha...
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