K-Pop and BTS, how much can they earn from Youtube and Spotify?

Bring a little K-pop music to your class with this activity.

Jason Kibbe, a terrific middle school math teacher in Chambersburg, PA, sent us an activity that he created for one of his students.  His student adores the Korean K-pop boys band, BTS.

What do you think of this group? How much could they possibly earn on Youtube?

Valentine’s Day + NBA All-Star Voting + Presidents’ Day

How does the voting for the NBA All-Star team work?

Updated for 2020!
Fans, the media, and the players vote for who should be on these teams but how are their total votes computed?  Evenly?  Weighted?  What formula does the NBA use to determine who is an All-Star? 6.EE.2, 7.EE.3, HSA.SSE.A.1

Have a heart Canstruction
Estimate the quantity of kidney bean cans needed to build this giant heart.  Volume, analysis, collaboration, estimation ... MP1, MP2, MP3

A parametric heart ... with love
Students use unit triangles and manually calculate sine and cosine of π/2, π, 3π/2, and 2π as they try to graph this great-looking, curvy heart using parametric equations.  We also have them create it using Excel, on a graphing calculator and with online graphing tools. HSG.SRT, HSF.TF

Sweetheart candies are back … sort of


NECCO went bankrupt in 2018 and there weren't Sweetheart candies last year.  But they are back now and made in Ohio.  There aren't as many for sale this year and they sure aren't perfect yet.

How many dollars worth of sweetheart candies used to be sold each Valentine's season?  Let your students taste the candies while they do the math. Student learn of the pain of a new manufacturer.  They practice problem solving, critical thinking, and number sense reasoning? Enjoy!

Movies and the upcoming Oscars

We have 12 activities for your Oscar week.

Highest Grossing Movies - Let your students develop their own ideas about compounded percent change while they have the opportunity to speak about the upcoming Academy Awards show. Worldwide box office income is compared for the top ten grossing movies of all time. Is total gross the most appropriate way to judge the popularity of a movie?  How does inflation and increasing ticket prices come into play? Inflation rates are used to let students calculate how the money of 1997 compares to the money of 2013. Students see for themselves what exponential growth means.

Do the best movies make the most money?

Do the "Best" movies make the most money?  How could you measure the "best" movie?

What information would you need to make this judgement?

At most ten movies are nominated each year to receive an Oscar for the Best Picture. On Sunday, February 9, 2020, this year's Academy Award winners will be announced.  This activity is always timely but should be very exciting during the movie award season.


What do you wonder?  Why is this string of digits special?  What will be the next number like this one?