Topic

Activities about rates

Cost of light bulbs
Cost of light bulbs

With incandescent and halogen bulbs banned since 2023, students compare CFL, LED, and Smart LED bulbs, calculate energy use in kilowatt-hours, and determine which bulb is the better...

Social Studies Ratio and Proportion Grades 6–8
Macy's Thanksgiving Parade (2025)
Macy's Thanksgiving Parade (2025)

🎈Get excited for Thanksgiving with this updated Macy’s Thanksgiving Day Parade activity! Students explore this year's parade map to find the number of parade blocks, use the map’s...

Number Sense Holidays and Annual Events Grades 4–7
Would you rather $10,000 a week vs $10 million at once?
Would you rather $10,000 a week vs $10 million at once?

In this updated activity, students explore the question: Would you rather get $10,000 every week or $10 million all at once? To begin, students compare the amounts to...

Number Sense Grades 5–8
Ant Bridges
Ant Bridges

In this activity, students will explore how ants build bridges using their bodies, considering different factors that affect their decision to build the bridge or take the longer...

Science Grades 3–5
Jock tax 2023
Jock tax 2023

Great professional athletes make a lot of money. Did you know that professional athletes have to pay an amazing amount of federal, state, and sometimes even city tax?...

Algebra Number Sense Grades 6–HS
Really stuffed!
Really stuffed!

Wow, these cookies look really stuffed! How much more "stuffed" are they compared to Triple Double Oreos, Double Stuf Oreos or even Original Oreos. Does this look yummy...

Algebra Number Sense Grades 5–HS
Which gasoline is the cheapest?
Which gasoline is the cheapest?

When Brian traveled to Crete last summer with his wife and son on an Archaeological dig, buying gasoline for his small rental car got him wondering again. He...

Algebra Number Sense Grades 6–HS
K-Pop and BTS, how much can they earn from Youtube and Spotify?
K-Pop and BTS, how much can they earn from Youtube and Spotify?

Bring a little K-pop music to your class with this activity. Jason Kibbe, a terrific middle school math teacher in Chambersburg, PA , sent us an activity that...

Number Sense Math and Social Studies Grades 3–7
The Forever Roll
The Forever Roll

That's a big roll of toilet paper! Why would anyone need such a big roll of toilet paper? How does it compare to Charmin's other toilet paper products?...

Algebra Number Sense Grades 5–HS
One harrowing adventure
One harrowing adventure

Can you imagine being stuck in the dark for such a long time? How do all of the numbers play out? In this activity, students get a chance...

Number Sense Current events Grades 5–HS
More eruptions on Hawai'i's Kilauea
More eruptions on Hawai'i's Kilauea

The Volcano Kilauea is continuing to spew molten lava and ash on the island of Hawai'i. This volcano is on the tip of the southern most Hawaiian Island....

Algebra Geometry Grades 4–8
Chicken to share
Chicken to share

How many pieces does each person get when $10 is supposed to feed two people? Which would you buy and how much is each piece of your choice?...

Number Sense Math and Food Grades 5–7