Cubelets Robots for Elementary School STEM Programs

Cubelets are small blocks that are snapped together to make an endless variety of robots with no programming, no small parts to track, and no wires. Engage students in Elementary STEM programs with these fun cubes in kits. Watch as they discover how motion, lights, temperature, sound, and magnets can be used to solve problems and design new inventions. The small magnets on each side of the cube attract to each other. Each cube has its own special function: shining a light, turning, rolling wheels, sensing movement, sensing light, sensing temperature, etc.

They detect each other and communicate with each other, like a flock of birds. Teaching STEM lessons with cubelets gives students a reason to apply knowledge they've already learned, to verbalize it, and to put into practice new vocabulary and literacy skills about engineering, problem solving, science, and technology. Watch this video to see how they work.  Learn more about the Curriculum for Cubelets.

Making Robots with Magnets

You don’t need to know how to code or wire to construct robots with Cubelets. Snap the robot blocks together and the magnetic faces do the rest. Every unique arrangement is a new robot with novel behaviors emerging from the construction. Invention is made easy with cubelets. Students just need to combine a battery cube (Power) with input (Sense), compute (Think), and output (Action) cubes. You may recognize this as the fundamental concepts of coding and engineering design.

It is amazing how many things can be built. Add in some Legos (which snap right on with the included lego adapters), and the possibilities are endless. The cubes work with lego blocks to easily add motorization, sensors, and engineering functions to any creative endeavor. Students begin learning what an engineer does, how an engineer solves problems, and the vocabulary of engineering. 


What Do The Cubelets Do?

There are three types of blocks: some sense the environment, some think and make decisions, and other cubelets take action.

  • Power cubelets contain rechargeable batteries and have an on-off switch. Each creation needs one power cubelet - it distributes power to all other cubes.
  • Sense cubelets can detect the environment - such as light, temperature, sound, and when something is close.
  • Action cubelets have wheels that pull others along, have lights, play sounds, provide knobs to turn, display bars of light, and rotate.
  • Think cubelets distribute data to other cubes and create logic such as minimum, maximum, and inverse.


How Durable are Cubelets?

Cubelets are tough! Sure, you can break them, but it won’t be easy. In addition to passing CPSIA and ASTM toy safety standards, the durability of this product has been tested in classrooms, and teachers tell us that they are impressed with how Cubelets perform over time.Cubelets have been in classrooms, after school programs, makerspaces, and science centers where they’re used repeatedly for hours at a time, and they hold up to exuberant, clumsy, and continuous use. You can also wipe them down with a disinfectant from time to time, although we don’t suggest submerging them in water to clean them!


What Should I Order for My Classroom?

We have put together educational packages which include everything needed for succces in a class of various sizes - including the chargers and extra cubes. These packs are for grade K-5 classrooms or makerspaces to complete engineering challenge lessons or encourage creative problem solving. We've described them below and you will find links to them under their pictures to the right.  If you have any difficulty choosing, feel free to call us for a custom quote. Click the Pricing button below for more information, or See our classroom purchasing options

The Inspired Inventors Mega Pack has it all! Perfect for Makerspaces, classrooms, libraries, museums, and educators who recognize that kids love Cubelets and can't get enough of them. Born out of the Modular Robotics' team experience of watching thousands of kids play with Cubelets over the years, this set is intended to give individual learners and teams the chance to deeply explore the high potential of Cubelets. Includes 162 SENSE, THINK, and ACT Cubelets, Brick Adapters, storage, and two 5-port chargers. Save 25% off the retail equivalent price with the Inspired Inventors Mega Pack!

The Creative Constructors Pack facilitates easy adoption and high-ceiling academic activities with enough Cubelets to support 4 working groups. Programming challenges and remote control races are a snap because each group can utilize their own Bluetooth Cubelet. The Creative Constructors is our favorite mix of Cubelets for the budget savvy educator. Includes 56 SENSE, THINK and ACT Cubelets, Brick Adapters, storage and a 5-port battery charger. Save 25% off the retail equivalent price with the Creative Constructors Pack!

The Mini Makers Pack is a perfect way to jumpstart any learning environment. It was inspired by the needs of our youngest learners and was designed with Pre-K and Kindergarten students in mind. However, you’ll find that it works great for older students, too! The Bluetooth functionality allows for easy software updates and Cubelets programming activities. The Mini Makers Pack supports six groups of learners. Includes 54 SENSE, THINK, and ACT Cubelets, Brick Adapters, storage, and a 5-port battery charger. Save 25% off the retail equivalent price with the Mini Makers Pack!

 Learn More about Cubelet's Curriculum


Recommended - by teachers, students, and parents

  • For Curious Children ages 5-12 (grades Pre-K-5)

  • For Grade K-5 Science, Math, and ELA Classes

  • For After School Programs, Clubs, and Camps

  • For Makerspaces, Libraries, and Home School

How Do I Encourage Learning?

We have curriculum for grades K-5 to use with the cubes. Our lessons will help you direct students to explore cubes in a scientific and engineering manner.  Learn more about the lessons.  Or See Sample Lessons.


Which Cubes Are Included in the Box?

(see descriptions of cubes in Accessories Link)

Included in the 20 cubes Kit:

Action Cubelets: 2 Drive, 1 Rotate, 1 Speaker, 1 Flashlight, 1 Bar Graph

  • Sense Cubelets: 1 Knob, 1 Brightness, 2 Distance, 1 Temperature

  • Think Cubelets: 2 Inverse, 1 Minimum, 1 Maximum, 1 Battery, 2 Passive, 2 Blocker

  • Accessories: 1 Charger

Included in the 12 cubes Kit:

  • Action Cubelets: 2 Drive, 1 Flashlight, 1 Rotate

  • Sense Cubelets: 1 Brightness, 2 Distance 

  • Think Cubelets: 1 Battery, 1 Blocker, 1 Bluetooth, 1 Inverse, 1 Passive

  • Accessories: 1 Micro USB Charging Cable, 2 Brick Adapters (1 Stud, 1 Socket), Updated Robot Builder's Handbook and Robot Recipe Cards

Included in the 6 cubes Kit:

  • Action Cubelets: 1 Drive, 1 Flashlight

  • Sense Cubelets: 1 Brightness, 1 Distance

  • Think Cubelets: 1 Battery, 1 Passive


Which Cubelet Package should I order?

We recommend either the 12 pack or the 20 pack for home use. Those packs provide enough cubes to engage children for hours, especially if they already have some lego blocks to add to them.  Click the Pricing button below for more information.  But if all you can afford is the 6 pack, they can still build 10 to 12 robots with just those cubes, and add motion to their legos creations. Click here for a video on what you can build with just 3 cubes. 

We recommend the education packs for schools, libraries, clubs, and museums. Those packs provide enough blocks to set up stations for teams of students to be inventive.

Special offers or discounts may be available for schools and clubs.  Contact Us to ask for a Custom Quote.

More Videos of Cubelets in Action:

Cubelets used in a classroom

Science Nation



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Boys and Girls of all ages love building things with Cubelets!  Just like wood blocks, they easily fit in small hands.

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Cubelets are tough and durable. They can be used over and over again for multiple classrooms, year after year.

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Cubelet Classroom Inspired Inventors Mega Pack (6 or 12 teams)


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Cubelet Classroom Creative Constructors Pack (4 teams)


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Cubelet Mini Makers Pack (6 Teams)

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Cubelet Twenty Pack (1 Team)

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Cubelet Twelve pack

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S5 Box