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National Donut Day (2 activities)
National Donut Day (2 activities)

Friday, June 5th, is National Donut Day . We have 2 activities to support this silly holiday. How much have doughnuts changed? Students become familiar with the word...

Algebra Geometry Grades 4–HS
Drill Bit Fractions
Drill Bit Fractions

In this updated activity, students explore how drill bits are measured using fractions of an inch. They will use equivalent fractions to compare drill bit sizes, fill in...

Number Sense Math and Food Grades 3–5
A lot of Cars
A lot of Cars

🚙 In this updated activity , students will explore the environmental impact of transportation choices. They will use division to calculate how different transportation choices reduce the number...

Number Sense Math and Social Studies Grade 2
Fish Tale
Fish Tale

🐠In this updated activity, students will apply the Pythagorean Theorem in both 2D and 3D (basic) contexts to explore distances in an aquarium. Begin with the starter activity...

Algebra Geometry Grade 7
Mathematical Gift Wrapping
Mathematical Gift Wrapping

🎁🎁In this updated activity, students will use math to explore two methods of wrapping gifts, including the mathematical method demonstrated by Sara Santos. They'll calculate the dimensions of...

Algebra Number Sense Grades 6–7
Downside Up
Downside Up

🔍 In this updated activity, students will explore patterns and formulate mathematical relationships through the Canstruction exhibit ‘Downside Up.’ Begin with the starter slides for initial estimation attempts...

Algebra Number Sense Grades 6–HS
Lots of Pieces
Lots of Pieces

🧩In this updated activity, students will explore estimation and addition with a collection of puzzles. It’s important to start with the starter slides, where students will use their...

Number Sense 3-act tasks Grades 1–4
How much does America spend for Mother’s Day?
How much does America spend for Mother’s Day?

Updated in April 2026 with new data; see the answer key. How much do we spend on Mother's Day? Use the Mother's Day event to engage your students...

Number Sense Math and Social Studies Grades 3–6
Will I pay less if I buy more?
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, linear equations or piecewise...

Algebra Number Sense
How many hot chocolate scoops do I need?
How many hot chocolate scoops do I need?

Even though it is now Spring, here in New England we are still chilled and hope that some hot chocolate will warm us up.  Clicking on the...

Number Sense Math and Food Grades 2–4
Giant beach towel
Giant beach towel

Beaches are starting to open again. Bring summertime smiles and hopes to your class with this activity. Towel project by Misael Soto. Act One: Check out this beach...

Geometry Math and Art 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