Category: Number Sense

Shrinkflation

Inflation in the cost of living, last year (2021) was estimated to be about a 7%. If “shrinkflation” is happening at the same time as general inflation, is the unit cost for those shrunk items actually raised even more than 7%?  Let’s find out.

Mardi Gras, 2022

In New Orleans revelers throw and collect purple, green, and gold beads. Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.

Crazy Twos (Two to the…s)

Let your students practice manipulating exponents. Multiplication, division, roots, powers of powers.  This powerful activity asks them to do some impressive mathematics … in their heads.

February 22, 2022

Why do you suppose we are posting this date as a topic for YummyMath? What do you think is so special about this date? Does this happen often?  When might a similar day occur?

Winter Olympic Activities (7 activities)

Curling – Friction, score-keeping, trajectory and weirdness are the main concepts in this activity.  Curling is not a well-understood sport but the science and strategy are easily understood and enjoyed. Big Air Snowboarding – Some of your students may be officianados…

10 Super Bowl activities

Typical Super Bowl scores – Just updated for 2022  Students reflect on the mean, median, and mode losing scores, winning scores, and range of scores from past Super Bowls as they try to predict this year’s scores. They decide how the…

The LUGE

This is one of the fastest Olympic sports. Lugers, on tiny sleds, zoom down a solid ice track at fantastic speeds, hold their bodies in an aerodynamically optimized position while fighting extreme G-force, and use only a helmet as their…

Olympic Schedule

The Winter Olympics begins this week in Beijing.

Wikipedia had this schedule of events. We think that there is a lot of information missing and apparent in this graphic. What can you tell and what would you like to know?

Cold NFL games

There have been some pretty cold football games. How do you suppose the frigid temperatures affect the success or failure of the teams that are involved? Do teams from colder areas usually beat warmer based teams in cold playoffs?  

Lunar New Year 2022 – Year of the Tiger

A combination of 10 Heavenly Stems and 12 Earthly Branches, the year’s symbol creates a sequence of year names that eventually repeat. Students explore the least common multiple of these two cycles without ever hearing the term LCM.

Spider-Man continues

How much did it cost to make?
How much will it gross?
Is the Spider-Man phenomena a guarantee for success?
How would you compare all of the Spider-Man movies?

Mystical Mathematical Mind Reader

The GHOST WHISPERER now has a replacement!!!! John Tranter of Transum Mathematics has created the Mythical Mathematical Mind Reader and we’ve updated our activity to accompany the fun.

Super Bowl Numerals

Introduce Roman numerals to your class.  In this activity students learn the rules for evaluating Roman numerals, decipher copyright dates, see how Roman numerals are used today, and do some strange looking arithmetic and surprisingly easy computation.