Tag: ratio

Mallie’s latest Big Burger

Students learn about the initial weight of the giant meat patty and calculate the final weight of the patty after it is cooked.  They decide what percent lean this meat must have been and consider how long it would take their family to eat the entire world-record burger.

How old are you?

We usually give our ages in years, but that isn’t very precise is it?  In this activity students find their age in days, hours and minutes.  First students take two minutes to estimate their age in days, hours and minutes.…

Mardi Gras, 2022

In New Orleans revelers throw and collect purple, green, and gold beads. Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.

Home team advantage?

Ask students whether they think a game played at home gives their team an advantage.  If so, how much of an advantage?  Enjoy the discussion first, then show them our graphic.
Students use the infographic to compare NFL team home and away wins. They consider the best home team, the best away team and decide if NFL teams really do seem to have a home field advantage.

Shopping season already!

We used to see holiday sales right after Thanksgiving but, surprisingly, holiday shopping has already begun. Sales are advertised everywhere.  Students will be able to add some understanding and analysis to those shopping trips after calculating savings in dollars and…

Giant Pumpkins

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…

Indigenous Peoples or Columbus Day

*** Two activities *** When Columbus landed in Guanahani (renamed San Salvador, Bahama Islands by Columbus), he began the European settlement of the New World. Guanahani was inhabited by the Taíno people and it wasn’t really a new world. In this…

Earth’s perihelion

On Saturday, January 2nd, 2021, Earth will be as close as it gets to the Sun during its orbit. Shouldn’t that make this the warmest time of the year? In this activity students become familiar with the terms perihelion and aphelion as they calculate…

Black Friday

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.

Not enough mashed potatoes

Updated activity for Covid 19 appropriate Thanksgivings.
Students change decimals to fractions,
calculate ingredient measures for various-sized Thanksgiving servings,
explain their thinking in calculating these figures,
and judge how many servings could be created from 7½ pounds of potatoes.

Candy deals

We found big mixed bags of candy at really good prices … we think. Students are asked to decide which would be the best deal and the worst deal on candy.  They can also create their own mixed bags.  This activity…

Wanna work for Uber?

Students examine the ads and decide what is and isn’t said. Do the ads give enough information to make a decision? Which is the better deal? How do you know?

The Forever Roll

Why would anyone need such a big roll of toilet paper?  How does it compare to Charmin’s other toilet paper products? If this roll lasts for one month, how big a roll would I need to be able to last for one year?

Operation Gratitude – Halloween candy buy back

This is a great idea! Motivate kids to get rid of all of that candy for a good cause. Operation Gratitude and dentists are encouraging healthy eating, motivated giving, and offering a good use for all of that leftover candy.…