Common Core standard

Activities for 4.NBT

Real-world activities aligned to this standard.

Microns and Masks
Microns and Masks

How big is one coronavirus? How big is a micron? How well do these masks protect against the virus? What can you observe about the size of particles...

Algebra Number Sense Grades 4–HS
Star Wars ...  the story continues
Star Wars ... the story continues

The Rise of Skywalker will open on December 20, 2019 . How much did it cost to make? How much will it gross? Is the Star Wars phenomena...

Number Sense Ratio and Proportion Grades 4–HS
How long will it take you to trick-or-treat?
How long will it take you to trick-or-treat?

It's Halloween and this is your neighborhood. How long will it take you to trick or treat at every house in your neighborhood? Possible conversation with students: How...

Number Sense Geometry Grades 3–8
Impress your parents at dinner
Impress your parents at dinner

This activity is the first in our series on mental math tricks. Let your students develop their own individual way of mentally multiplying by 0.5, 5, 50, 500,...

Algebra Number Sense Grades 5–HS
How many cars are there?
How many cars are there?

Brian came home from work to find that his son had his toy cars organized in a tight parking lot on our front porch. ? Below is a...

Number Sense Geometry Grades 3–5
A gorgeous, glittery card
A gorgeous, glittery card

Uh oh! How do you find the area of a heart? Get your students to help you calculate how many sequins you'll need to order for this class...

Number Sense Geometry Grades 3–8
Pick-a-brick wall at the Lego store
Pick-a-brick wall at the Lego store

There are walls at the Lego stores that are filled with individual Lego parts. You can fill a bucket and pick out exactly what you need. Use this...

Number Sense Geometry Grades 3–6
Flag Art
Flag Art

A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity (Flags) students measure; create whole number ratios...

Number Sense Geometry Grades 4–8
Which is the best deal?
Which is the best deal?

How do you calculate and justify which deal is a better savings? By dollars saved? By percent saved? By some other measure? Looking at 4 different deals, students...

Algebra Number Sense Grades 4–7
How Many Donuts is That?
How Many Donuts is That?

Act One: Take a look at the first picture (Krispy-Kreme-photos). What is the first question that comes to mind? How many donuts is that? What information would be...

Number Sense Geometry Grades 4–7