Fraction operations might be more interesting when it involves chocolate. Students reason and calculate what is left of these chocolate bars. The bars are the same size but are molded into different number of sections. Yum!
Tuesday, September 22, 2020 at 13:30 UTC (which is the same as 9:30 am EST), will be the Autumnal Equinox. It is the time of year when the imaginary plane that passes through the Earth’s Equator would also travel through the…
For health concerns, professional sports now have no actual live fans. To help generate the excitement and semblance of fans, some teams use cardboard cutouts of people. Some use Zoom screens of fans. The NBA creates virtual fans. Actual viewers…
Johns Hopkins University of Medicine has a team that maintains current maps and data about the Coronavirus. They record changes and show trends of the virus activity throughout the World. Enjoy exploring the data, all of the visual mappings, and…
Two activities to help celebrate National Donut Day
How many donuts is that = huge box of donuts to approximate.
How have donuts changed = torus volume measurements, formula intuition, and algebraic transformation of one formula into a second formula.
This activity is a investigation intended to get students and teachers to loosen up a little and appreciate how just considering a situation might lead you to a very reasonable approximation.
Too often students think that there is only one answer that is right and that the method for approaching that solution is also limited to the “correct” approach. Surely this fear of experimenting and guessing leads to math anxieties and the fear to reason and experiment.
Clock math, 1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7… is modular math. Let your students learn about the usefulness of modular math as they color and explore Pascal’s Triangle. Very pretty math!
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…
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.
The Rise of Skywalker will open on December 20, 2019. How much did it cost to make? How much will it gross? Is the Star Wars phenomena a guarantee for success? How would you compare these movies? We’ve been gathering data…
Check out our Christmas Tree. We need to buy lights for the tree. Without calculating, guess how many feet of lights you will need. What information do you need to better estimate the number of feet of lights that you…
In this 3-act activity, students look for a pattern to count these cans. Canstruction is an annual event that takes place just before Thanksgiving in cities throughout the world to raise money and gather food for local food banks.
As the Halloween season begins, let your students play a spooky game. How does this work? Students can play this game online at Ghost Whisperer Crystal Ball and then Figure out why it works. Construct viable arguments Critique the work of others…
Students consider how to determine the best candy haul prediction. The math ideas of measurement error and percent error are introduced. Students then predict their own Halloween candy collections numbers and compare their predictions to their actual haul using measurement and percent error.
Monday, September 23, 2019 at 7:50 UTC (which is the same as 3:50 am EST), will be the Autumnal Equinox. It is the time of year when the imaginary plane that passes through the Earth’s Equator would also travel through the…
