Tag: 7.RP.2

Big bucks 2023

Huge sports contracts! We often hear about big player contracts. Who makes the most per year? Per game? What sports?

The new largest Lego set ever – The Roman Colosseum

Note: This is a remake of our 2014 and 2017 activities “How Much Does a Lego Cost?”. How much could the Roman Colosseum Lego set cost ? Student first make a guess and then think about what information would be…

Sadly, Jorge passed away yesterday.

Jorge would have been 15 years old on May 5, 2020. We wondered how old that would have been in human years. Does that 7 times his dog years formula really predict all dog’s aging?

World record Snickers Bar

This World Record Snickers Bar was created in late January at the Waco, Texas Mars Wrigley Plant. What proportions would be an accurate cross sections of this monster bar? How many Mars Wrigley workers would this feed? How are your calculations different from what was published? How must their calculations have differed from yours?

NHL Playoff games can sure last a long time!

Revised! We’re watching another Stanley Cup playoff now. Will there be any really long games during the playoffs? In 2013, a Stanley Cup playoff match between the Bruins and Blackhawks went into 3 overtimes. People stayed up way too late…

Should I get the Big One?

Let your students decide if the BIG one is a fair deal.  Click on the pic to enlarge and post on the wall.  Have kids pick a sandwich.  Which size will they get?  Which size offers the most value?  Make…

How much does the biggest Lego set ever cost?

Note: This is a remake of our 2014 “How Much Does a Lego Cost” activity How much could the Lego Millennium Falcon cost? Student first make a guess and then think about what information would be useful in order to…

Total solar eclipse – apparent sizes

Where will the eclipse be seen?  What if you are not in the path of totality?  Total solar eclipse?  What is apparent size?  How can the moon seem to cover the sun completely? We’ve created a pretty extensive investigation about…

Flag Art

A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday.  In this activity students measure; create whole number ratios for the official U.S. flag; decide how our artistic flags will be different…

Glowing rectangles

People spend lots of time staring at their screens (glowing rectangles).  Kids spend hours each day using their cell phones, computers, tablets, television and more.  Use that interest to motivate your student’s analysis of screen ratios and what proportions they…

How Much is a Tweet Worth?

These days it seems everyone is on social media. Are you? Famous athletes and entertainers are on social media and they can make a lot of money.  In this activity students study how the number of Twitter followers relates to tweet…

Which Sweet Hearts are the Best Deal?

I have been doing a little shopping for Sweet Heart Candies. I came across these three deals online.  Which should I select?  In this activity students determine which package of Necco Sweet Heart Candies is the best deal.  Students are…

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…

Cheesy Goldfish crackers

In this activity students do a little comparison shopping as they determine which size Goldfish product is the best deal.  Students are introduced to the ratio table as a tool for determining equivalent ratios and comparing different rates.  Students graph cost per ounce relationships and answer a…

Typhoon Neoguri approaching Japan

A powerful typhoon has just passed Okinawa, Japan’s southern-most prefecture, and is expected to continue to be very powerful.  What is a typhoon?  How are they scaled? In this activity students become aware of various storm rankings and severity as they…