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Hexadecimal coloring
Hexadecimal coloring

Probably most of us have heard of and even used hexadecimal color codes. Don't you wonder why their number descriptions really make sense? In this activity we first...

Number Sense Geometry Grades 4–HS
Mallie's latest Big Burger
Mallie's latest Big Burger

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...

Algebra Number Sense Grades 4–6
Gauss and our star of stars
Gauss and our star of stars

How many stars are in this image and how did you count them? For Adventurer members we have a teaching suggestions and our solution sheet.

Number Sense Geometry Grades 2–6
What time should I wake up?
What time should I wake up?

I'm going to surprise my mom with breakfast in bed for Mother's Day. She wakes up pretty early. When do I have to wake up to pull this...

Number Sense Math and Food Grades 2–5
Banana Art
Banana Art "Comedian"

What do you think this activity might be about? What do you wonder? How much would you pay for this piece of art? How much profit is involved...

Algebra Number Sense Grades 5–HS
How big of a crepe can you make?
How big of a crepe can you make?

At Costco you can buy this huge tub of n utella . It contains nearly 7 pounds of chocolaty-hazelnut spread. We use n utella to make banana/n utella...

Algebra Number Sense Grades 4–7
Refugees from Ukraine
Refugees from Ukraine

We are hearing a lot about the war in Ukraine. Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing. How...

Number Sense Math and Social Studies Grades 5–HS
Shrinkflation
Shrinkflation

Shrinkflation! What do you think this word means? Inflation in the cost of living (2021) was estimated to be about a 7% rise. If "shrinkflation" is happening at...

Algebra Number Sense Grades 5–7
What can you tell about a snowflake?
What can you tell about a snowflake?

As a snowflake falls from the sky, its crystal grows according to the humidity and temperatures of the air that it passes through. In this activity, students interpret...

Geometry Math and Science Grades 5–HS
Shopping season already!
Shopping season already!

We used to see holiday sales right after Thanksgiving but, surprisingly, holiday shopping has already begun. Sales are advertised everywhere. Students will be able to add some understanding...

Number Sense Math and Social Studies Grades 4–7
Spicy hot chocolate for the Dia de los Muertos
Spicy hot chocolate for the Dia de los Muertos

The Day of the Dead is always on the first and second of November. Life and death are part of the natural cycle of life and the Dia...

Algebra Number Sense
Federal debt and deficit - What are they?
Federal debt and deficit - What are they?

What's the big deal with our national debt? Do we actually borrow money to cover our debt? If we do, imagine the interest charges? Help your students (and...

Number Sense Math and Social Studies Grades 5–HS