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Guacamole for Cinco de Mayo
Guacamole for Cinco de Mayo

Cinco de Mayo (May 5th) is an annual celebration of the 1862 Mexican victory over the French Empire at the Battle of Puebla. It has now evolved into...

Math and Food Holidays and Annual Events Grades 4–HS
New bust of King Charles ... in chocolate
New bust of King Charles ... in chocolate

Saturday, May 6 th 2023 will be King Charles' coronation. It's been a long time since a new monarch was crowned in the United Kingdom. The artists at...

Algebra Number Sense Grades 4–HS
March Equinox - big deal? ... and 5 more Spring activities
March Equinox - big deal? ... and 5 more Spring activities

What's with the March Equinox? Does it really affect our lives? Is it just some astronomical occurrence? Students calculate the daylight hours at the March Equinox by time...

Algebra Math and Science Grades 2–6
How hard is it to find a 4 leaf clover? (3 Saint Patrick's Day activities)
How hard is it to find a 4 leaf clover? (3 Saint Patrick's Day activities)

Shamrocks in Ireland are actually 3-leafed white clover, trifolium repens . If you are lucky , you can sometimes find a four-leafed clover. How rare is finding a...

Algebra Number Sense Grades 2–HS
Two 12s or one 18?
Two 12s or one 18?

A little more pizza fun before Pi day ! Which should we order and why? Two 12-inch pizzas or one 18-inch pizza? Which will give you more pizza?...

Number Sense Geometry Grades 4–HS
Square or Round - which pizza should I buy?
Square or Round - which pizza should I buy?

Warm up for π day with this updated activity! Subway has great Flatizzas but Sbarro's pizzas are good too. If that slice from Sbarro is from an 18-inch...

Algebra Number Sense Grades 3–6
Chocolate heart-shaped raspberry cake
Chocolate heart-shaped raspberry cake

For Valentine's Day, bake a cake! Students calculate base area or volume of cakes made from 2 cake pan sizes and observe how the volume of the cake...

Geometry Math and Food Grades 5–HS
Sweetheart candies
Sweetheart candies

NECCO went bankrupt in 2018 and Sweetheart candies weren't the same after that. They are back now and made better (?) in Ohio instead of Boston. How many...

Number Sense Math and Food Grades 5–7
Earth's perihelion with the Sun
Earth's perihelion with the Sun

On January 4th, 2023, 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?...

Algebra Math and Science Grades 4–HS
How many feet of lights should I buy for my tree?
How many feet of lights should I buy for my tree?

Check out our Christmas Tree! We need to buy lights for the tree. Without calculating, guess how many feet of lights we will need. What information would help...

Algebra Number Sense Grades 5–HS
Do I have enough wrapping paper?
Do I have enough wrapping paper?

In this problem based activity students first guess and then try to calculate whether they will have enough paper to wrap this present without taping pieces of wrapping...

Algebra Number Sense Grades 5–HS
Whole lot of cookies
Whole lot of cookies

This activity has been updated -- See the updated activity HERE

Algebra Number Sense Grades 2–4