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🎁🎁In this updated activity, students will use math to explore two methods of wrapping gifts, including the mathematical method demonstrated by Sara Santos. They'll calculate the dimensions of...
In 2017, Old Dominion Freight Line offered 2 free tickets to the next 3 World Series to the person who guesses closest to "How many baseballs are in...
This year, Buffalo, New York, has had more than 100 inches of snow this winter. We imagine that the height of the tunnel to people's homes is getting...
In this problem based activity students first guess and then try to calculate whether they will have enough paper to wrap this present without taping pieces of wrapping...
Gumball Machine Problem from Brian Marks on Vimeo This problem is a little puzzle to get your students thinking, estimating, and calculating. We've given you a pdf file...
These Aussi tomatoes (the tomato on the left of all of the tomatoes) are huge. How much do you guess one weighs? Can you figure it out?
From the vacuum description and advertisement in the PDF, how long do you think its cord must be? Thanks to Brian Shoemaker, Newton, MA teacher, for the idea...
If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit....
552-carat diamond found in Diavik Mine, Northwest Territories, Canada Can you tell just how big this gem is? Do you know how big a carat is? What would...
On October 16, 1995, perhaps a million black men gathered for the Million Man March on Washington. This was 32 years after Martin Luther King, Jr. gave his...
On August 5, 2010, the San Jose copper-gold mine near Copiapó, Chile collapsed stranding 33 miners in a large cavern more than 2,000 feet below ground. A new...
Mr. Mark's new little baby can make some amazingly tall streams. Give your class a little chuckle as you introduce them to parabolic motion with this very short...