### Number Sense

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#### This shoe is huge!

Brian and his son were doing some shopping when he found this shoe.  Egad!  Could that be someone's real shoe? In this activity student use a shoe size chart, patterns or linear modelin...

#### Souvenirs and concessions

Brian has introduced systems of equations with easy, motivating problems that deal with the cost of stadium purchases for food and souvenirs. These systems of equations puzzles are so intuitive that...

#### I need help raking my leaves

Brian has spent too much time thinking about his leaves. He's worried about raking them alone and thinking about how long the job would take if people helped. In this activity students see the inve...

#### Macy’s Star Rewards Points

Wow! Check out this deal at Macy's.  For \$25 I can join Macy's Star Rewards program. I get 10% back in rewards for every dollar I spend.  Its pretty cool that Macy's gives p...

#### When will they collide?

Show the video to your class. Give students time to complain and talk about seeing this commercial.  Then take guesses from students about the actual time it would take to collide. &...

#### Fantasy Football

In the midst of another NFL season, we introduce students to Fantasy Football. Students first calculate football points given touchdowns, yardage gains and interceptions. They are then challenge...

#### How much do the movie tickets cost?

Ooops! I was supposed to buy 4 adult and 2 children tickets, but I accidentally entered four children and two adults ... :)  Can you figure out how much a child's ticket and an adult ticket...

#### Free Flights?

This can't be right!  If my flight cost \$200 and I stayed for 10 days it would be free.  Right?  You can kick off this activity by asking students to think about where in the...

#### What's with the plovers?

Cute little birds.  Piping plovers are nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks. Is this conservatio...

#### Deflategate

The deflated ball controversy makes an interesting segue into negative number line understanding.  A particular digital psi football gauge reads 0 when the ball is at a proper NFL in...