Category: Number Sense

World Cup rankings

In December soccer teams with the strongest world rankings were chosen to play in the once-every-4-years World Cup. The World Cup competition has just begun and will continue through July 15th. The team rankings are calculated in a pretty complex…

Celebrate Father’s Day

Thank you Mother and Father for all of those diapers – Which is a better deal, cloth or disposable diapers?  How much did you cost your parents in diapers?  In the future how much could your kid’s diapers cost?   Help…

Impress your parents at dinner

This activity is the first in our series on mental math tricks.  Let your students develop their own individual way of mentally multiplying by 0.5, 5, 50, 500, and so on.  We have a little practice and a requirement for…

Will Damarious Randall have to pay big?

Warriors won the NBA Championships.  Randall won’t have to buy jerseys! The Cleveland Brown’s safety player, Damarious Randall, posted this tweet.  Its been very popular and retweeted a lot.  How much might he have to fork out for jerseys?  Let’s…

NBA Finals, 2018

Celebrate the NBA and NBA Finals by involving your students in interpreting what can be deduced from graphical representations.  In this activity students consider scatter plots, circle graphs, bar graphs, Venn Diagrams and the concept of mean. To start the…

How much pee is in that pool?

After chlorination, it has been hard to measure the quantity of pollutants in pool water.  A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn’t disguise. In this activity, students calculate volume of several pools, change that…

Memorial Day 2018

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…

Who had the greatest NBA season ever?

In 2017 Russel Westbrook had one of the most dominating seasons ever, averaging a trip!e double per game.  James Harden lit up the league in 2018 and is considered the favorite for MVP.  Or what about Stephen Curry and his…

Mother’s Day is coming up

Mother’s Day by the numbers – Mother’s Day is right around the corner and this means big business for the greeting card and floral industries. Let your students practice averages, percents, and large numbers while they analyze the statistics on Mother’s…

Longest NHL overtime games in history

Game one of the 2013 Stanley Cup between the Bruins and Blackhawks went into 3 overtimes. People stayed up way too late to watch the conclusion. The teams played 112 minutes and eight seconds of game time. The game went…

Boeing 787 draws an airplane over the United States

Recently, pilots of a Boeing 787 testing a new set of Rolls Royce engines, fulfilled their FAA required long-distance endurance requirement in an unusual way. The Boeing pilots decided to have a little fun and fly a flight path that traced…

Where should I drop my puck?

Act 1 – Give students time to view the game board above or give them our one-page activity. The above picture is larger when you click on it. Ask students for their gut reaction about which slot would give them…

Wheel of Theodorus

Bring a little art into your math class as you begin to use the Pythagorean theorem and your students first meet irrational numbers.

Earth Day, 2018 – 12 activities

Sunday, April 22nd is Earth Day – There is so much to bring to your classroom to support recycling, conserving resources, studying climate change and protecting our planet. Have you seen more Monarch butterflies lately? – Students read charts, do a little research, and make observations…