Whole lot of cookies


Jennifer Fairbanks from Hopkinton, MA sent us this picture of the cookies that she baked in 4 hours using 13 eggs and 5 cups of sugar.

Do you see some math here?

Buy, buy, buy and ship (8 ideas)

Here comes Black Friday, Small business Saturday, Cyber Monday and Giving Tuesday.  It's a crazy time of year.  Use all of that shopping to educate your students about good deals and how shoppers can be fooled.

Is this really 70% off? - Is that advertisement correct?  Do they just want us to believe their math and not question what is really 70% off?  Is everything or anything really 70% off?

Video games console sales (updated 2022)The video game world is constantly changing and improving. With the recent new products like the PlayStation 5 and the Xbox Series X we wondered what are the best selling systems of all time? With that in mind, we created a Video Game Console math activity which examines the greatest selling video game consoles. This is sure to be a hit with kids as they work on their data analysis and number sense through the context of video games.

Double Discounts -  I'm gonna be able to get this great hoodie so cheap!   If I use the promo code what will be the total percent off?

Thanksgiving, shopping, football and giving

barbecued-smoked-turkeyHow should I cook my turkey? - Students judge timing, cost, tastiness, and quantity necessary as they plan for the feast. 4.MD.1, 5.NBT.7, 4.MD2, 6.RP.3, 6.NS.3, 7.NS.3  Great video on a deep frying fire with William Shatner.

Shopping season already! - Students will be able to add some understanding and analysis to holiday shopping trips after calculating savings in dollars and percents with this timely investigation. 6.RP.3, 7.EE.2, 7.EE.3

Not enough mashed potatoes - Use Brian's famous mashed potatoes recipe to practice changing decimals to fractions; calculating ingredient measure for various-sized Thanksgiving servings; have students explain their reasoning; and to have students figure out how many servings 7½ pounds of potatoes would make. 5.NF.6 , 5.NF.6 , 6.RP.1 , 6.RP.2 , 6. RP.3 , 7.RP.1

World Cup 2022 – Qatar (2 activities)

On November 20, 2022, the World Cup of soccer will begin in Qatar.  This is a world-wide competition and up until the finals, teams have only been able to play each other in a selection of countries that are relatively near.

We have two different activities involving the logic of setting up a fair draw and the number of matches that each team may have to play.

Lots of Cranberries

The harvest must be nearing completion now and growers are selling their product to make cranberry juice, jelly, sauce, and of course, fresh berries in time for Thanksgiving.

In this activity, students learn about how they are grown and harvested; estimate their size and quantities; and see what they can deduce from published statistics.

Total lunar eclipse

Clicking on this image will take you to a great NASA's video of a total lunar eclipse.

On the morning of November 8, 2022, many of us will be able to see the last full lunar eclipse until March 2025.

Luckily, many of us will be able to see the eclipse pretty close to when we would ordinarily awake.

  • 3:02 am EST The moon enter the outer part of the Earth's shadow.
  • 4:09 am EST you will start to see a "bite" taken out of the moon.
  • From 5:17 a.m to 6:42 am EST the entire moon will be in the Earth's shadow and appear to be a coppery-red color.

In this activity students will come to an understanding of the alignment of the Sun, Moon, and Earth during a total lunar eclipse.  They are asked to deduce from a graphic who will be able to observe the event and who on Earth will have no opportunity. They research and report to the class why the Moon will look reddish during the eclipse.