Number Sense

Cost of a gallon of gas

In 1950, one gallon of gasoline costs $0.27.  Today the prices are going down but are they as low as they were in 1950?  Or could $0.27 buy more in 1950? In this activity we begin to understand the relative…

Losing team in the playoffs, 2015

Hey, the playoffs are about to begin.  The best teams from the leagues compete to determine the champion. Must be some really great teams! But wait, the 2014-15 Carolina Panthers made the NFL playoffs by winning the NFC South with a…

Soda Santa

Soda Santa

Happy Holidays! This Soda Santa is made up entirely of 12-pack cans of Coca-Cola products. What questions do you have? Start out the activity by giving kids 30 seconds to look at the picture and have them take a quick…

How much does a Lego cost?

This is a three act task, with an activity guide.  Show students the act one video.  What questions do they have?  How much could the Star Wars kit cost?  Follow the  activity guide, find costs based on the cost of…

Done with the leaves … now for the snow

Brian has spent too much time analyzing his leaf raking. He has created an investigation that asks students to calculate how long it would take different numbers of rakers to finish cleaning his yard of leaves. Students see the inverse…

The V~o~r~t~e~x

Weather has been extreme in the U.S. lately.  Use this incredible media topic to engage your students in integer subtraction, analysis, understanding, practice and confidence building. CCSS: 7.NS.1, 7.NS.3, MP2

Black Friday deals

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.

Rush or Pass?

With only 16 games in an NFL regular season every game and every play is crucial.  Teams need to win each week or jobs are on the line. To win you have to score points.  Points translate to wins. So…

Delicious pumpkin pie

I make the best, best, really best pie. Every year more and more people come to our house on Thanksgiving morning for my famous pumpkin pie and a hike in the nearby woods.  This year 23 people have already accepted.…

How much should you spend on this sale?

This activity can be used in a large range of grade levels.  Your class can work on percents, linear equations or piecewise functions. Act One: We missed the semi-annual sale but we want to get ready for the next one.  Let’s…

Nobel Prizes

This is the medal that is given to the Nobel prize winners.  Check it out. (Teachers, you could get into Roman numerals right here.)       LittleRomanNumeralLesson.pdf What do you know about the Nobel Prize?  Who do you know who has…

Kilauea’s lava flow

The volcano, Kilauea, on the Big Island of Hawaii, has been active and erupting since 2008.  There are two lava flows at present and one is now approaching homes on the Big Island. This is another example of natural events…

Making a ghost costume

I’m going to make a costume pattern to sell.  People can buy my plan and make awesome, long, full, scary, ghost costumes.  This scheme will be so simple.  Perhaps I’ll get rich! In this activity young students can reason about…

How long will it take you to trick or treat?

It’s Halloween and this is your neighborhood. How long will it take you to trick or treat at every house in your neighborhood? Possible conversation with students: How long will it take you to get from house to house? You…

Macy’s Star Rewards Points

Macy's Sale

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 part of that $25 to charity.  Should you do…