Does this chart make sense to you? Is there something odd about it? How would you change it to make it more sensible?
What is with this chart?
Tag: MP4
Celebrate Saint Patrick’s Day (3 activities)
Finding 4-leaf clovers! Shamrocks in Ireland are actually be 3-leafed white clover, trifolium repens. If you are lucky, you can sometimes find a four-leafed clover. How rare is finding a 4-leafed clover? How hard do you have to look? What…
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!
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.
Shipping crunch
Do huge numbers of packages shipped and huge numbers of packages delivered late mean that these two companies aren’t doing a good job? Talk numbers.
How many feet of lights should I buy for my tree?
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…
Eliud Kipchoge runs marathon in 1:59:40.2
How have record marathon runs changed through the years? Will those record times keep being broken? Does the data help you predict?
Ghost Whisperer
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…
How Much Halloween Candy Will You Collect?
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.
Fall Equinox, 2019
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…
So just print some more money!
What’s the big deal with our deficit? Do we actually borrow money to cover our debt? If we do, imagine the interest charges? Help your students (and their families) understand the meaning and repercussions…
How does the pay for women’s soccer compare to that of men’s?
All soccer players on a team aren’t paid the same. The best players are paid more than the simply great players. And in Women’s soccer those same differences exist but at a smaller income scale. In this activity we examine…
V-o-r-t-e-x
Weird wing prices
Clicking on this image will show it larger in a new window. Danny’s Wok in Philadelphia has a huge price list for ordering their famous chicken wings. Why did they write the prices this way? Do you see a pattern?…