Kids' STEM Classes: Coding, Robotics & More | Genius Gems
Weekly STEM classes, taught by our own team.
Small-group classes for kids, once a week, all semester: design, engineering, chemistry, robotics and coding. Every class is hands-on, and the topics change every semester so there is always something new to learn.
- Grades: Kindergarten – 6th grade (Pre-K at Millburn)
- This semester (Millburn, NJ): Fall 2026: Sep 8 – Dec 23
- Try a class (Millburn, NJ): Trial class from $42.50
- This semester (Chelsea, NYC): Fall 2026: Sep 10 – Dec 23
- Try a class (Chelsea, NYC): Trial class from $47.50
- Class length: 45 minutes, once a week
This semester's classes
Pick a class by grade and weekday. Enroll for the semester, pay per class, or book a trial first.
Millburn, NJ — Fall 2026: Sep 8 – Dec 23
Chemistry Lab — K – 2nd
Mondays, 3:45 PM – 4:30 PM · 13 classes · Sep 14 – Dec 21 · Semester $455 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM · $45 a class
Chemistry Lab is where curiosity meets chemistry, and where curious minds get to mix, react, and observe their way through real scientific experiments. Students will explore chemical and physical reactions, learn about molecular structure, density, energy transfer, and the…
Engineering 1 — 1st – 2nd
Mondays, 3:45 PM – 4:30 PM · 13 classes · Sep 14 – Dec 21 · Semester $455 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM · $45 a class
Welcome to the exciting world of engineering! Students build foundational projects that introduce them to core engineering concepts, including DC circuits, magnetic forces, structural design, and an age-appropriate introduction to Newton's 1st and 3rd Laws. Sample projects…
Coding 1 — K – 1st
Mondays, 4:45 PM – 5:30 PM · 13 classes · Sep 14 – Dec 21 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 4:45 PM, class 4:45 – 5:30 PM · $45 a class
Coding 1 is where our youngest programmers begin. Using symbolic coding blocks and beginner-friendly platforms like Cubetto, Sphero Indi, and ScratchJr, students will code interactive games and control real robots while learning the fundamental concepts behind all programming:…
STEAM Lab — Pre-K – K
Mondays, 4:45 PM – 5:30 PM · 13 classes · Sep 14 – Dec 21 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 4:45 PM, class 4:45 – 5:30 PM · $45 a class
Our youngest students get a taste of everything Genius Gems has to offer in this hands-on sampler class. Each week, students rotate through four core experiences: a science experiment, an introduction to coding with symbolic blocks, an intro to our Design Lab, and a…
Chemistry Lab — Pre-K – K
Tuesdays, 3:45 PM – 4:30 PM · 15 classes · Sep 8 – Dec 22 · Semester $525 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM · $45 a class
Chemistry Lab for our littlest scientists is all about wonder, color, and “wow!” moments. Students will explore simple chemical reactions and physical changes through hands-on, age-appropriate experiments designed to bubble, fizz, and surprise. Sample experiments include making…
Engineering 2 — 3rd – 6th
Tuesdays, 3:45 PM – 4:30 PM · 15 classes · Sep 8 – Dec 22 · Semester $525 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM · $45 a class
Engineering 2 is a hands-on class where older students dig into how things really work — building, designing, and troubleshooting real-world systems. Students will tackle DC circuits, motors, gears, and generators; explore magnetism and propulsion using Newton's 1st and 3rd…
Design Studio — 2nd – 5th
Tuesdays, 4:45 PM – 5:30 PM · 15 classes · Sep 8 – Dec 22 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 4:45 PM, class 4:45 – 5:30 PM · $45 a class
Design Studio is a hands-on STEAM class where creativity meets cutting-edge technology. Students work across our most exciting maker tools — including 3D printers, the laser cutter, the kid-safe Chomp Saw, and our open Design Bar — to bring their original ideas to life. Sample…
Engineering 1 — 1st – 2nd
Tuesdays, 4:45 PM – 5:30 PM · 15 classes · Sep 8 – Dec 22 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 4:45 PM, class 4:45 – 5:30 PM · $45 a class
Welcome to the exciting world of engineering! Students build foundational projects that introduce them to core engineering concepts, including DC circuits, magnetic forces, structural design, and an age-appropriate introduction to Newton's 1st and 3rd Laws. Sample projects…
Coding 1 — K – 1st
Wednesdays, 3:45 PM – 4:30 PM · 16 classes · Sep 9 – Dec 23 · Semester $560 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM · $45 a class
Coding 1 is where our youngest programmers begin. Using symbolic coding blocks and beginner-friendly platforms like Cubetto, Sphero Indi, and ScratchJr, students will code interactive games and control real robots while learning the fundamental concepts behind all programming:…
VEX© Robotics Competition Team — 4th – 6th
Wednesdays, 4:00 PM – 5:30 PM · 10 classes · Sep 16 – Nov 18 · Semester $450 · $45 per class · Trial $52.50
The VEX® Robotics Competition Team is our most advanced robotics offering — designed for students who are serious about taking their robotics skills into real tournament play. The fall session is the foundation: students will form a team, dig into the official 2026-2027 VEX® IQ…
Coding 1 Plus — 1st – 2nd
Thursdays, 3:45 PM – 4:30 PM · 13 classes · Sep 10 – Dec 17 · Semester $455 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM · $45 a class
Coding 1 Plus builds directly on Coding 1, taking students into more complex robotic control and more advanced game design. Students continue working with symbolic coding blocks but begin transitioning to laptops, building real proficiency with the tools used in later coding…
Intro to VEX© Robotics — 2nd – 3rd
Thursdays, 4:45 PM – 5:30 PM · 13 classes · Sep 10 – Dec 17 · Semester $455 · $35 per class · Trial $42.50
Stay and play: Play 3:30 – 4:45 PM, class 4:45 – 5:30 PM · $45 a class
Intro to VEX® Robotics is the perfect first step into the world of competitive-style robotics. Working with VEX GO kits — in the same robotics family as the hands-on building system used in the VEX® Robotics World Championship — students will assemble their first robots with…
Design Studio — 1st – 2nd
Fridays, 3:45 PM – 4:30 PM · 13 classes · Sep 11 – Dec 18 · $35 per class · Trial $42.50
Design Studio is a hands-on STEAM class where creativity meets cutting-edge technology. Students work across our most exciting maker tools — including 3D printers, the laser cutter, the kid-safe Chomp Saw, and our open Design Bar — to bring their original ideas to life. Sample…
STEAM Lab — Pre-K – K
Fridays, 3:45 PM – 4:30 PM · 13 classes · Sep 11 – Dec 18 · $35 per class · Trial $42.50
Our youngest students get a taste of everything Genius Gems has to offer in this hands-on sampler class. Each week, students rotate through four core experiences: a science experiment, an introduction to coding with symbolic blocks, an intro to our Design Lab, and a…
Browse all classes at Millburn, NJ
Chelsea, NYC — Fall 2026: Sep 10 – Dec 23
Coding 2 — 2nd – 4th
Mondays, 3:45 PM – 4:30 PM · 13 classes · Sep 14 – Dec 21 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Coding 2 takes students from beginner block coders into builders of real, sophisticated programs. Working entirely in a block-based coding environment on laptops, students design original games, control increasingly complex robots, and solve coding challenges that mirror the…
STEAM Lab — K – 1st
Mondays, 3:45 PM – 4:30 PM · 13 classes · Sep 14 – Dec 21 · Semester $520 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Our youngest students get a taste of everything Genius Gems has to offer in this hands-on sampler class. Each week, students rotate through four core experiences: a science experiment, an introduction to coding with symbolic blocks, an intro to our Design Lab, and a…
Chemistry Lab — K – 4th
Mondays, 4:45 PM – 5:30 PM · 13 classes · Sep 14 – Dec 21 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Chemistry Lab is where curiosity meets chemistry, and where curious minds get to mix, react, and observe their way through real scientific experiments. Students will explore chemical and physical reactions, learn about molecular structure, density, energy transfer, and the…
Engineering 2 — 3rd – 6th
Mondays, 4:45 PM – 5:30 PM · 13 classes · Sep 14 – Dec 21 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Engineering 2 is a hands-on class where older students dig into how things really work — building, designing, and troubleshooting real-world systems. Students will tackle DC circuits, motors, gears, and generators; explore magnetism and propulsion using Newton's 1st and 3rd…
Engineering 2 — 3rd – 6th
Tuesdays, 3:45 PM – 4:30 PM · 15 classes · Sep 15 – Dec 22 · Semester $600 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Engineering 2 is a hands-on class where older students dig into how things really work — building, designing, and troubleshooting real-world systems. Students will tackle DC circuits, motors, gears, and generators; explore magnetism and propulsion using Newton's 1st and 3rd…
Coding 1 — K – 1st
Tuesdays, 4:45 PM – 5:30 PM · 15 classes · Sep 15 – Dec 22 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Coding 1 is where our youngest programmers begin. Using symbolic coding blocks and beginner-friendly platforms like Cubetto, Sphero Indi, and ScratchJr, students will code interactive games and control real robots while learning the fundamental concepts behind all programming:…
Coding 1 Plus — 1st – 2nd
Wednesdays, 3:45 PM – 4:30 PM · 14 classes · Sep 16 – Dec 23 · Semester $560 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Coding 1 Plus builds directly on Coding 1, taking students into more complex robotic control and more advanced game design. Students continue working with symbolic coding blocks but begin transitioning to laptops, building real proficiency with the tools used in later coding…
STEAM Lab — K – 1st
Wednesdays, 3:45 PM – 4:30 PM · 14 classes · Sep 16 – Dec 23 · Semester $560 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Our youngest students get a taste of everything Genius Gems has to offer in this hands-on sampler class. Each week, students rotate through four core experiences: a science experiment, an introduction to coding with symbolic blocks, an intro to our Design Lab, and a…
Advanced Robotics with VEX© — 3rd – 6th
Wednesdays, 4:45 PM – 5:30 PM · 14 classes · Sep 16 – Dec 23 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
VEX® Robotics is a hands-on class where students design, build, and program competition-level robots. Working with VEX IQ kits — the same platform used in the VEX® Robotics World Championship — students will assemble robots with motors, sensors, and gears, and program them to…
Design Studio — 1st – 4th
Wednesdays, 4:45 PM – 5:30 PM · 14 classes · Sep 16 – Dec 23 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Design Studio is a hands-on STEAM class where creativity meets cutting-edge technology. Students work across our most exciting maker tools — including 3D printers, the laser cutter, the kid-safe Chomp Saw, and our open Design Bar — to bring their original ideas to life. Sample…
Coding 3 — 4th – 6th
Thursdays, 3:45 PM – 4:30 PM · 14 classes · Sep 10 – Dec 17 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Coding 3 is the bridge from block coding to professional programming. After a quick review of foundational concepts in blocks, students begin coding in Python, the same language used by software engineers at companies like Google, Netflix, and NASA. Sample projects include:…
Engineering 1 — 1st – 2nd
Thursdays, 3:45 PM – 4:30 PM · 14 classes · Sep 10 – Dec 17 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Welcome to the exciting world of engineering! Students build foundational projects that introduce them to core engineering concepts, including DC circuits, magnetic forces, structural design, and an age-appropriate introduction to Newton's 1st and 3rd Laws. Sample projects…
Coding 1 — K – 1st
Thursdays, 4:45 PM – 5:30 PM · 14 classes · Sep 10 – Dec 17 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Coding 1 is where our youngest programmers begin. Using symbolic coding blocks and beginner-friendly platforms like Cubetto, Sphero Indi, and ScratchJr, students will code interactive games and control real robots while learning the fundamental concepts behind all programming:…
FIRST® LEGO® League Robotics — 2nd – 3rd
Thursdays, 4:45 PM – 5:30 PM · 14 classes · Sep 10 – Dec 17 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
This class brings the globally recognized FIRST® LEGO® League Explore program into our studio in a relaxed, non-competitive format. Working with LEGO® Education SPIKE™ Essential sets, students design, build, and code motorized LEGO models that respond to real-world challenges.…
Design Studio — 1st – 4th
Fridays, 3:45 PM – 4:30 PM · 14 classes · Sep 11 – Dec 18 · Semester $560 · $40 per class · Trial $47.50
Stay and play: 3:00 – 5:30 PM · $55 a class
Design Studio is a hands-on STEAM class where creativity meets cutting-edge technology. Students work across our most exciting maker tools — including 3D printers, the laser cutter, the kid-safe Chomp Saw, and our open Design Bar — to bring their original ideas to life. Sample…
Browse all classes at Chelsea, NYC
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The weekly schedule
Days across the top, time slots down the side. Stars mark the first and last day of the semester.
Millburn, NJ
| Time | Monday Sep 14 – Dec 21 | Tuesday Sep 8 – Dec 22 | Wednesday Sep 9 – Dec 23 | Thursday Sep 10 – Dec 17 | Friday Sep 11 – Dec 18 |
|---|---|---|---|---|---|
| 3:45pm - 4:30pm | Chemistry Lab (Kindergarten–2nd Grade) Engineering 1 (1st Grade–2nd Grade) | Chemistry Lab (Pre-K–Kindergarten) Engineering 2 (3rd Grade–6th Grade) | Coding 1 (Kindergarten–1st Grade) | Coding 1 Plus (1st Grade–2nd Grade) | STEAM Lab (Pre-K–Kindergarten) Design Studio (1st Grade–2nd Grade) |
| 4pm - 5:30pm | VEX© Robotics Competition Team (4th Grade–6th Grade) | ||||
| 4:45pm - 5:30pm | STEAM Lab (Pre-K–Kindergarten) Coding 1 (Kindergarten–1st Grade) | Engineering 1 (1st Grade–2nd Grade) Design Studio (2nd Grade–5th Grade) | Intro to VEX© Robotics (2nd Grade–3rd Grade) |
Chelsea, NYC
Stay and play
Add supervised play to a class. Kids build, tinker and play with our team before or after their class, and everyone is picked up by 5:30 PM. Choose the play option when you enroll.
Millburn, NJ
- Class only: $35 a class
- Class and play: $45 a class
- Play time: 3:30 – 5:30 PM
One play window for everyone. Depending on the class time, the play comes before or after it:
- 3:45 PM class: Play 3:30 – 3:45 PM, class 3:45 – 4:30 PM, then play until 5:30 PM
- 4:45 PM class: Play 3:30 – 4:45 PM, class 4:45 – 5:30 PM
Chelsea, NYC
- Class only: $40 a class
- Class and play: $55 a class
- Play time: 3:00 – 5:30 PM
With school pickup, kids come straight from school, play, take their class and are picked up by 5:30 PM.
Real STEM, every week
For more than eight years, our small-group classes have been the heart of Genius Gems. Every class is hands-on: kids design, build, break and iterate with our own instructors. The topics change every semester, so a child can keep coming back and always learn something new.
- Hands-on, every class — Kids build, test and fix real projects: circuits, reactions, robots, code.
- Small groups — Capped class sizes so every child gets the instructor's attention.
- Our own instructors — Taught by the Genius Gems team, not a franchise curriculum.
- New topics every semester — No repeats. Fall, winter and spring each bring a fresh line-up.
How to join
Enrolling takes a few minutes online.
- Pick a class — Browse this semester's classes by location, grade and weekday.
- Try it first, or enroll — Book a single trial class, or enroll for the semester or pay per class.
- New students: a short recommendation — For a child's first Genius Gems class we ask for one short teacher recommendation. Once per child; future semesters skip this step.
- You're in — We confirm your child's spot and send everything you need before the first class.
Pricing
Each class is priced by its length and the number of weeks in the semester. The exact price is on every class card above, and you can pay for the whole semester or class by class.
Sales tax and a 3% card processing fee are added at checkout.
Cancellation policy
Full refund minus a 10% processing fee up to the early-cancel date. 50% refund up to the mid-cancel date. No refunds after that. Exact dates for this semester are published with the class policies.
School pickup — New York City
We walk NYC students from school to class, at no extra cost.
Our staff meet students at dismissal at these schools and walk them to Genius Gems for their class. Just tell us the school when you enroll.
We pick up from:
- Academy of Saint Joseph (AOSJ)
- Friends Seminary
- PS 11
- PS 41
- PS 340
Don't see your school? Ask us. We add schools as families need them.
Classes at Genius Gems
Questions parents ask
Can we try a class first?
Yes, and it's the easiest way to start. Almost every class offers a one-off trial class at the trial price shown on its card. Booking one takes a minute: pick the class, tap Details & enroll and choose the trial. No application or teacher recommendation is needed to try a class.
What ages are the classes for?
Kindergarten through 6th grade, grouped into grade bands so the level fits. Millburn also runs a Pre-K and Kindergarten STEAM Lab.
How long is a semester?
Fall, winter and spring each run for a set number of weeks. The exact count and dates are on each class card and in the schedule chart.
Do lessons repeat semester to semester?
No. Class lessons change every semester, so kids can enroll every term and always learn something new.
Is a teacher recommendation always required?
Only for a child's first-ever Genius Gems class. Once we have one on file, future semesters skip this step.
What if my child misses a class?
Enrolled students can request one make-up in a comparable class that same semester, subject to space.
What's the cancellation policy?
Full refund minus 10% by the early-cancel date, 50% by the mid-cancel date, none after. Exact dates for this semester are in the class policies.
Pick a location and grab a spot.
Classes fill on a first-come basis. Choose your location to see the schedule and enroll.
Genius Gems Millburn, NJ
215 Millburn Avenue, Millburn, NJ 07041
Classes at Millburn, NJ · Directions · Kids' STEM classes in Millburn, NJ
Genius Gems Chelsea, NYC
555 6th Avenue, New York, NY 10011
Classes at Chelsea, NYC · Directions · Kids' STEM classes in Chelsea, NYC
Questions? Email information@geniusgems.com