Figuring planting dates
It's time to get ready to plant my garden again. But here in Boston we have to start our seeds indoors to give them a head start before we can put plants outside. How should I fi...
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Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook
That sounds like an awful lot of their Facebook shares. They want to help create a better world for their daughter, Max.
I wonder if they will have enough left over to live on?
The...
How Much is a Tweet Worth?
These days it seems everyone is on social media. Are you? Famous athletes and entertainers are on social media and they can make a lot of money. In this activity students study how ...
A parametric heart ... with love
This post is being updated and will be posted before February 6th, 2025. Adventurer members can still access the old files by clicking the solutions & supporting materials.
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How much should you spend on this sale?
This activity can be used in a large range of grade levels. Your class can work on percents, linear equations or piecewise functions.
Act One: We missed the semi-annual sale but we want to get ready...
Kilauea's lava flow
[caption id="attachment_15749" align="aligncenter" width="500"] Halema‘uma‘u Lights the Morning Sky - Photo taken from the overlook by the Volcano House on January 30, 2014 - NPS photo[/caption]
Th...
Ebola updated
Ebola has continued to gain strength and devastate regions of West Africa. WHO (World Health Organization) updates their data frequently and the progress and lack of control of...
Cost of light bulbs - updated!
Algebra
Number Sense
Math and Science
Math and Social Studies
Ratio and Proportion
Data and probability
There's a lot of misinformation out there about the cost to consumers of CFL and LED bulbs and the savings in energy and money that could be realized.
Let your students "do the math" and realiz...
My teacher says this stream is parabolic. Is he correct?
Instead of asking students to just believe what you've said, why not ask them to verify your assertions? Students plot the points of the stream, perhaps map them with an equation generated b...
Snow Days
Here is a picture from a recent snowfall at my house. How Much Snow Did I Get?
Have students make an estimate. Ask them for a guess that is probably a little to...