Image of small school with students attending

Big Build 
A 3-D printer poured out layers of concrete to make the walls of this school.

Bennie Khanyizira/Homeline Media/14Trees.com

CCSS

W.2

This School Was Built Overnight!

The use of 3-D printers is changing the world. Here’s how they’ve made life better for the kids in one small village in Malawi.  

World map higlighting Malawi in Africa

Jim McMahon/Mapman ®

    Imagine waking up one day and—poof! There’s a new school right across the street. It seems to have appeared overnight. 

    This may sound like magic. But it happened in the African country of Malawi. A small village there is now home to the world’s first 3-D printed school. Its concrete walls were built in just 15 hours. 

    The new school opened in June 2021. Before that, kids in the area had to walk miles to class. That’s a common problem in Malawi, where there aren’t enough classrooms for students.  

    And it’s just one of many problems that experts say 3-D printing can help solve.  

Many Benefits

Image of a smiling kid wearing a 3D printed prosthetic arm

Courtesy TrueLimb

    You’ve probably used a traditional printer. They use ink to create words and pictures on paper. But 3-D printers work differently. They use materials such as plastic, metal, or concrete to create solid objects. 

    Let’s say you want to 3-D print a plastic phone case. First, a computer sends an image of the design to the printer. Next, melted plastic is pushed through a nozzle to create the first layer of the case. More layers are added on top until the case is complete.

    There are many benefits to using 3-D printers. For one, they’re less wasteful than the usual way of building things. They use just enough material to make an object. Plus 3-D printers can create complex shapes that many machines can’t. 

    This has been very helpful in medicine. Now people can have artificial limbs that are custom-made for their bodies. Doctors even hope to one day be able to 3-D print human organs.

Changing the Game

Image of a 3D printer

Holcim.com

A 3-D printer

    So why don’t we just 3-D print everything? For now, it’s still easier to make most items in a factory. 3-D printing can also be expensive. Some machines cost as much as $500,000.

    Even so, 3-D printing is changing the game, piece by piece. At the school in Malawi, for example, the walls were 3-D printed. The doors, windows, and roof were all built the usual way. 

    Experts say that Malawi needs about 36,000 more classrooms. Building that many classrooms would normally take about 70 years. But with 3-D printers, the job could be done in less than a decade.

    Just think about how many students’ lives that could change! 

videos (1)
Video

Where in the World

Dream It, Print It!

Discover some of the amazing things scientists can make with 3-D printers.

Leveled Articles (2)
PDF

Where in the World

Higher Level: This School Was Built Overnight!

Read or print a 800L-900L version of this article in magazine view.

PDF

Where in the World

Lower Level: This School Was Built Overnight!

Read or print a 500L-600L version of this article in magazine view.

Text-to-Speech