When shopping next Friday, students will be able to add some understanding and analysis to the trip after calculating savings in dollars and percents with this timely investigation.

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.

Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook. We’ve created an activity based on her Monster Cake (composed of everything that Cookie Monster loves). This recipe is published in her blog, Binomial Baker, First,…

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…

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…

Tornadoes have devastated the Midwest, U.S. in the last few days. Alabama, Texas, Louisiana, Oklahoma, Ohio, Missouri, Iowa, Nebraska and Mississippi have been brutally hit with these powerful events. Involve your students in a better understanding of the ranking and…

This Monday Americans will celebrate Memorial Day. Who are we honoring? How did the holiday come about? Isn’t Memorial Day usually on May 30th? Students learn a little about the history of the holiday, analyze the possibilities and patterns for when…

March Madness is the big 68 team college basketball tournament that takes over our TV viewing during the weekends of March. School and office friends are filling out brackets. Engage your students in percents as they get excited about March…

Tuesday, March 5, 2019, will be the day before Ash Wednesday and the start of the season of Lent. Mardi Gras is a last hoorah and is celebrated throughout the world with feasting, partying, and general indulgence. In New Orleans…

TJ Watt was fined for roughing the passer. Check out the tweet from Darren Rovell and engage your students in a familiar context for a classic percent problem – solving for the “whole.” JUST IN: @_TJWatt lost 38% of his…

Check out Justin Verlander’s luncheon bill. What do you notice? What do you wonder? Students might be interested in or impressed by what a $1 million dollar charge does to Justin Verlander’s tip.

Green, green river – They’re doing it again. In Chicago, the local plumbers union “dye” the Chicago River emerald green. Students learn the meaning of PPM (parts per million) and attempt to figure out how much dye is used to sufficiently…

Check out the video below: Would you rather have $10,000 a week or $10 million all at once? What kinds of things do we need to think about or factor in when making this decision? If you had to advise…

Wow, check out this sale! I’m gonna be able to get this great hoodie so cheap! If I use the promo code what will be the total percent off? The activity: DoublePercentOff.pdf CCSS: 6RP.3, 7.RP.3, HSF.IF.C.8b, HSF.LE.A.1c

Have you ever wondered how the income from Girl Scout cookie sales is distributed to the individual girls, to their Troops, or to the organization? In this activity students learn a little about the organization of the Girl Scouts, try to…