## Mallie’s latest Big Burger

Click on this image to see it larger in a new window.

It's time to treat your students to ratios, proportions, fractions and BIG BURGERS! In this activity students explore the ratio of the various ingredients in the world's largest burger (pictured above & in the video below).

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.

## At last, its summer again

How much pee is in this pool? - A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn't disguise. In this activity, students calculate volume of several pools, change that cubic foot volume to gallons of pool water, and try to approximate how much urine is in each pool. 4.MD.C, 5.MD, 6.G.A, 6.RP.A, 7.RP.A, 7.G.B

How much water do you have to drink? - In this activity student develop formulas for calculating their water needs, learn about the effects of too little water, and calculate what they should be consuming. 4.OA.B, 5.OA.B, 6.NS.B, 6.RP.A, 8.F.A, HSF.BF, HSA.CED, HSM

Drinks at the Fair - At the amusement park, our friend, Jason, was intrigued with this sign for drink deals. He and his family come often to the park and, during the summer when it is hot, naturally drink a lot. Which is the best deal for them? 7.NS.3, 7.EE.3, 7.EE.4, 8.F.2, 8.F.5, HSA.CED.A.2, HSA.REI.D, HSA.REI.C.6, MP1, MP4

## Father’s Day, Juneteenth, and The Longest Day (summer solstice)

#### We have some ideas for mathematics that honor fathers on Father's Day.

• Thank you Mother and Father for all of those diapers - Students compare the cost of buying disposable versus cloth diapers. They estimate how much they cost their parents in diapers and consider how much they will spend on diapers when they have a baby. There is quite a bit of scaffolding built into the activity for students who might have limited experience with linear relationships and equation writing. 6.EE.9, 7.EE.4, 8.F.2, 8.F.4, 8.EE.8, HS.F-IF.8.B, HS.F-LE.2, HS.F-LE.5, MP7, MP8

• Blueberry Muffin Suprise - This Sunday is Father’s Day. I looked up a recipe for something that I’m sure that my dad will love and I’m going to surprise him. I’m going to make blueberry muffins.
This is a short activity that asks students to change the amounts in a blueberry muffin recipe to multiples of and fractions of a ¼ cup measuring cup (multiplication and division with unit fractions) 4.NF.4, 5.NF.7, 6.NS.1, 7.NS.2

• Juneteenth - You can appreciate why this is such an important celebration when you look at the painful stages and some of the events and dates as America moved towards abolishing slavery. In this activity students read about the various ways freedom was promised in America until finally, freedom was gained ... July 19, 1865.

## Gauss and our star of stars

Clicking on this image will show it larger in a new window.

How many stars are in this image and how did you count them?

## 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.  When they make their estimates, consider sharing and recording estimates as a class.  Even though students will slightly vary in age, their estimates should be in the same relative range.

This is a great opportunity to discuss estimation and reasonability.  Follow this estimation & discussion with actual calculations.  Students can use any method that makes sense to them.  Depending on grade level,

## Why isn’t the World Cup happening now?

"Al Rihla"
New seamless ball created by Adidas for the World Cup. Name means “the journey” in Arabic.

The World Cup Finals is only played every 4 years but isn't it always in June?