### Algebra

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#### It's almost summer now

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 wat...

#### Mother's Day

How much do we spend on Mother's Day - Use the Mother's Day event to engage your students in approximating, reasoning, and investigating as students estimate how mu...

#### Earth Day Actions for Our Planet (April 22)

We have 16 activities that you could use for Earth Day! April 22nd is Earth Day. Help your students become activists for our planet? We have ...

#### Is 2024 a special number?

Image by dashu83 on Freepik Students are introduced to some esoteric number categories as they check out the various descriptors of this year's date.  What's a Harshad number?  What's a...

#### Will I pay less if I buy more?

image designed by macrovector / Freepik This activity can be used in a large range of grade levels.  Your class can work on percents, ...

#### What is a quantum dot?

In this activity, students work through the nomenclature to understand the possibilities of nano science and quantum dots.  Questions that are answered; How many nanometers are in a millime...

#### Veterans Day, 2023

On Veterans Day we honor the men and women that have served in the Armed Forces of the United States.  There are now 16.2 million living veterans. We found these maps that show where veterans liv...

#### 2023 World Cup Cricket

The Cricket World Cup is being played now (October 5 to November 19, 2023) in India. This is a complex game that is played with enthusiasm and humor. In this activity students learn about the game; ...

#### DST ends November 5th, 2023 - strange happenings

In this activity students try to figure out how time settings will change as they move from place to place and in the serious weirdness of Arizona and the Navaho and Hopi nations.  What variables...

#### Leslie's Yummy Pumpkin Pie

Every year more and more people come to our house on Thanksgiving morning for my (Leslie's)famous pumpkin pie and a hike in the nearby woods.  This year 23 people have already accepted. How man...