Simultaneous equations with a Dunkin Donuts’ sandwich deal. Do you have enough information to solve it?
Dunkin’s Go2s
Tag: 6.EE
At least the days are getting longer
What’s your guess? How fast are the number of daylight hours changing each day? Are the changes dramatic or subtle? Students make guesses; compute how long, on average, the change in daylight hours should be; and finally understand the variability in our year of daylight hours.
Inauguration Date
The date of the Presidential Inauguration this year can be written in an interesting way. What do you notice? What do you wonder? Do you think that this happens often in a year?
Electoral College vs. the popular vote
Click the map to create your own at 270toWin.com Let your students see how votes really count with our activity on the Electoral College. Can someone win the popular vote in the Presidential election and still not become President of…
How fast will my new puppy mature?
There is a new dog aging formula that depends on methyl markers that adhere to the DNA molecules of living things. Now we know that dogs don’t age as we thought that they did.
Does the new “Most Stuf” Oreo have an exorbitant amount of stuf?
How much more “stufed” are they compared to Triple Double Oreos, Double Stuf Oreos or even Original Oreos. Does this look yummy to you or gross? Why are they filled with creme and not cream? Maybe Nabisco’s employees can’t spell. What do you think?
Summer Solstice, the longest day
Saturday, June 20th, 2020 Sunrise on summer solstice at Stonehenge On Saturday, June 20th, at 5:44 pm EDT, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year. This marks the…
The R-naught number of the coronavirus
We’re still learning about the coronavirus and its ability to and tendencies toward infection and spread. Students learn about the R-naught number which is a measure of infectious growth. Real-world mathematics!
Mardi Gras or Fat Tuesday
Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.
It’s Girl Scout cookie time again!
Totally new activity! Let your students talk about their favorite Girl Scout cookies as they figure out what the local GS chapter really earns from these sales. Use this old graphic (where a box only costs $4.00) to figure out…
Three wrapping presents activities
3 activities about wrapping presents: On the diagonal, 3-act by estimation with iPhone, and judging sizes and needs by estimation with man and shopping basket.
Who’s going back to school?
Updated! Students look at the past and present populations of the U.S. and the past and present population of school attendees to calculate the percentage of the population that are enrolled in K-12 schools. They are asked to draw conclusions…
World Cup rankings
In December soccer teams with the strongest world rankings were chosen to play in the once-every-4-years World Cup. The World Cup competition has just begun and will continue through July 15th. The team rankings are calculated in a pretty complex…
Prince Harry and Meghan Markel’s Royal Wedding
This weekend is the wedding of Prince Harry and Meghan Markel. This will be quite an event and we can expect it to dominate the media. What have you heard about the event? What interests you? The mathematics in this…
Want to earn $150,000? – Mersenne prime search
What’s a Mersenne prime? How hard could it be to find the next one? Why are there only 50 known Mersenne primes? What’s with $150,000? The activity: NewMersennePrime.pdf