Common Core standard

Activities for 7.G.A

Real-world activities aligned to this standard.

Autumnal Equinox
Autumnal Equinox

The Autumnal Equinox will occur on Tuesday, September 22, 2026, at 8:06 pm EDT. It is the time of year when an imaginary plane would pass through both...

Algebra Science 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
Ghostly Measurements
Ghostly Measurements

In this activity, students will explore how to design a ghost costume 👻 👻 by reasoning through sheet dimensions, calculating the best fit for different heights, and interpreting...

Algebra Geometry Grades 6–HS
A geodesic icosahedron, the Times Square New Year's eve ball
A geodesic icosahedron, the Times Square New Year's eve ball

Image by kjpargeter on Freepik It's a gorgeous ball, covered with Waterford Crystal triangles, shaped as a geodesic icosahedron. Every New Year's Eve it descends in Times Square...

Geometry Math and Science
2 New Macy's Parade balloons
2 New Macy's Parade balloons

As the Macy's Parade returns to public viewing, here are two balloons that Macy's artists have added. Can you figure out their dimensions? Macy's give their dimensions in...

Algebra Number Sense Grades 5–HS
Boeing 787 draws an airplane over the United States
Boeing 787 draws an airplane over the United States

Recently, pilots of a Boeing 787 testing a new set of Rolls Royce engines, fulfilled their FAA required long-distance endurance requirement in an unusual way. The Boeing pilots...

Number Sense Geometry Grades 6–HS
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
Alarming ice cracks on Brunt Ice Sheet in Antarctica
Alarming ice cracks on Brunt Ice Sheet in Antarctica

A new, fast-growing ice crack is forcing the Halley VI British research station in Antarctica (shown above) to be moved. Fear of a huge break-off from the ice...

Algebra Number Sense Grades 6–HS