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…

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.

Let your students marvel at World Record winning giant pumpkins as they use proportions to calculate the quantities of pumpkin puree and the number of pumpkin pies that could be made from one of these giants. To introduce the task…

Fall is a beautiful time of year for hiking. Many students will be walking in the woods and mountains to enjoy the colorful leaves and the cool weather outside. Let them combine what they are doing with their families and…

Updated! Why should students do well in school, graduate high school, or go on to college? In this activity median earnings by various education levels are explored. Students compare the earnings of a non-high school grad with workers who graduated…

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…

To see this poster larger in a new window, click on the image. In 2017, Old Dominion Freight Line offered 2 free tickets to the next 3 World Series to the person who guesses closest to “How many baseballs are…

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…

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…

present world cup scores How many games are played in each round of the World Cup? In the opening round each of the four teams in a group must play each other (round robin format). From then on each round…

This is part II of our reflections on the World Cup games. Part I, World Cup rankings, explained and let students practice with the formula and weighting that is used to establish each country’s team rank. This second activity deals with…

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…

This weekend is the wedding of Prince Harry and Meghan Markel. This will be quite an event and we can expect it to dominate the media. What have you heard about the event? What interests you? The mathematics in this…