If you are a parent or teacher investigating robot kits for children, you likely don’t want a simple solution with a single purpose. You don’t just want the child to experience science, technology, engineering, and math — you want a kit that teaches all four categories, from piecing together the foundation to wiring the appendages to programming the “brain” using software. That’s where our list of robot kits for kids comes in.

Most of the robot kits listed below are tied to terms like STEM, Arduino, and Blockly. Here are a few explanations of those and other terms before we get started:

Arduino: An open-source hardware and software platform, it consists of boards that read inputs and convert data into outputs. This data is managed through the Arduino programming language and Arduino-based software. Arduino was built for beginners but is sophisticated enough for advanced users, making it a widely used platform in the educational system. Even Intel is on the Arduino bandwagon.

Scratch: A programming language designed for kids ages 8 to 16. It’s separate from Arduino but still widely used in schools for creating games, programming robots, designing animations, and more. Instead of writing code from scratch, kids piece together blocks of commands ranging from motions to events to sensing.

Blockly: Another programming language for kids, Blockly relies on blocks of code that can be strung together to create a program. It now resides under Google’s umbrella and is typically web-based, although dedicated apps have appeared for Android and iOS. Blockly is the simpler programming language; Scratch provides additional features.

STEM: This acronym stands for Science, Technology, Engineering, and Mathematics. It’s a “movement” backed by the U.S. Department of Education to help teachers and parents prepare students for the jobs of tomorrow. It’s designed to encourage student interaction with real-world programs, as well as provide experimental learning activities that push students to investigate, understand, and create solutions.

Now on to the robots!

Nintendo’s cardboard playset may not be the fanciest or most intricate kit around, but Labo does offer a series of easy and time-devouring exercises in construction and programming that kids will love — even if the games Nintendo includes aren’t amazing. Labo currently offers two sets. The variety kit features five projects that allow kids to make use of RC cars, a fishing rod, a house, a motorbike, and a piano. The robot kit gives users the means to build a mechanical backpack that tracks the movement of various limbs, which you can then use to maneuver a robot in an accompanying minigame.

Building a Toy-Con is easy, too; users merely need to follow instructions on their Nintendo Switch, which will highlight the most important parts. Once you’ve finished building a Toy-Con, you can play the associated minigame on your Switch. The real magic happens, however, when you experiment with new ways to use them. Labo isn’t particularly deep, but it’s a great way to get kids acquainted with the basic concepts of engineering.

This kit consists of Lego-based bricks, a programmable EV3 “brick” that serves as the brain, four sensors, a handful of motors, and loads more pieces. The EV3 brick includes a built-in display showing the wireless connection, battery level, what the robot is currently doing, and more. Overall, you can build 17 different robotic designs, such as a slithering snake (R3ptar), a walking dinosaur (Dinor3x), a shooting scorpion (Spik3r), and a humanoid robot (Ev3rstorm).

By default, each design comes with its own unique features and programmed behaviors. They can also be steered using the included remote control. Users can program their creation using the LEGO Mindstorms Ev3 software for PC, and download their commands to the robot using a USB cable, Bluetooth, or Wi-Fi. The software provides five programming “missions” to get kids started using icon-based programming blocks that are strung together. LEGO provides a programming app for mobile devices too.

As the name implies, the final product is a “smart” robot car based on the Arduino platform. The kit includes 24 different modules, such as an infrared receiver for using a remote control, Bluetooth for connecting via a smartphone or tablet, line tracking, and obstacle avoidance. With kids in mind, it boasts a minimal design for a faster build and fewer errors.

According to Elegoo, the kit includes instructions and software, showing kids how to load the programs and command the robot to perform a handful of standard moves. But the kit is expandable, enabling you to add sensors not included for a customized robot. These third-party sensors must include a 3-pin XH2.54 interface to be compatible with this kit.

Engineering is an important skill for kids to learn; so is learning how to take care of the environment. The 4M Tin Can robot does both, letting kids take a used can and make it the centerpiece of an adorable robot. The kit is simple to assemble, and the instructions straightforward, but it still offers flexibility to kids will get the chance to put their own twist on the robot’s final form.

The robot’s googly eyes and stretchy arms give it a goofy, somewhat friendly appearance. Not only is it a good way to teach kids how to reuse materials like cans, but it’s also one of the most affordable robot kits around.

By default, you can use this kit to create BuzzBot, or his faithful companion, MuttBot (but not both). But there are enough pieces — 271 — in the kit to build whatever you want, including one “brain,” six servos, and a battery.

Once kids build the robot, they can record different poses and play them all in a string via the PRP system using the Jimu app. But that’s boring, right? Also via the app, kids can string blocks of commands together using Blockly-based coding as well. The app even provides step-by-step instruction on how to piece both robots together.

This is Makeblock’s flagship robot kit, packing anodized 6061 aluminum mechanical parts with threaded-slot designs. The kit includes instructions for 10 different designs, such as the robotic tank, the robotic bartender, and the self-balancing robot. These designs are backed by the Arduino-based MegaPi mainboard that’s capable of handling 10 servos or eight DC motors simultaneously. The kit is also compatible with the Raspberry Pi board.

On the programming front, kids use the company’s Scratch 2.0-based mBlock software for PCs and mobile devices. This tool provides a drag-and-drop environment where kids string together blocks of code. Advanced users can use Python via the Raspberry Pi board, Node JS, or Arduino IDE. The parts list includes a Bluetooth module, so you can program and control your creation from any Bluetooth-based PC or mobile device.