Kids' STEM Classes in Millburn, NJ | Genius Gems

Weekly STEM classes, taught by our own team.

Weekly classes at Genius Gems Millburn — 215 Millburn Avenue, Millburn, NJ 07041

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.

This semester's classes

Pick a class by grade and weekday. Enroll for the semester, or book a one-time trial class first.

Millburn, NJ — Winter 2027: Jan 5 – Apr 9

Winter 2027 classes

Registration opens to everyone Mon, Oct 12, 9:00 AM.

Families in our current classes can register early, from Fri, Oct 9, 12:00 PM.

Join Fall 2026 classes now

Browse all classes at Millburn, NJ

It's not too late to try a class this fall

Our fall classes are still running. Book one trial class to see if it's a fit, then join for the rest of the semester.

Be the first to know when winter registration opens

Leave your email and we'll tell you the moment winter classes are open to book.

The weekly schedule

Days across the top, time slots down the side. Stars mark the first and last day of the semester.

Millburn, NJ — Winter 2027

TimeMonday
Jan 11 – Apr 5
Tuesday
Jan 5 – Apr 6
Wednesday
Jan 6 – Apr 7
Thursday
Jan 7 – Apr 8
Friday
Jan 8 – Apr 9
3:45pm - 4:30pmMad Science (Kindergarten–2nd Grade)
Engineering & Tech (1st Grade–2nd Grade)
Game Coding (2nd Grade–4th Grade)
Mad Science (Pre-K–Kindergarten)
Intro to LEGO® Robotics (Kindergarten–1st Grade)Intro to LEGO® Robotics (Kindergarten–1st Grade)Makerspace (2nd Grade–5th Grade)
Design Bar Club (Kindergarten–1st Grade)
4pm - 5:30pmVEX© Robotics Competition Team (Open only to returning students) (4th Grade–6th Grade)
4:45pm - 5:30pmTech Creator Lab (3rd Grade–6th Grade)
STEAM Lab (Pre-K–Kindergarten)
Tech Creator Lab (3rd Grade–6th Grade)
Engineering & Tech (1st Grade–2nd Grade)
STEAM Lab (Pre-K–Kindergarten)
Intro to Competition Robotics with VEX IQ (4th Grade–6th Grade)
Pokémon™️ Tournament (1st Grade–4th Grade)
Intro to Robotics with VEX® GO (2nd Grade–3rd Grade)

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.

How to join

Enrolling takes a few minutes online.

  1. Pick a class — Browse this semester's classes by location, grade and weekday.
  2. Try it first, or enroll — Book a one-time trial class, or enroll for the whole semester.
  3. 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.
  4. You're in — We confirm your child's spot and send everything you need before the first class.

Pricing

Classes are sold by the semester. Each class card above shows the semester price and the number of classes. Joining after the semester has started? You pay only for the classes that are left.

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.

Read the full class policies

Classes at Genius Gems

Three boys showing off the traffic-light circuits they built, LEDs glowing
An instructor and a student with an electronics kit at Genius Gems Millburn
Genius Gems Millburn, NJ
Two boys drawing and painting cardboard builds in a design class
Five children holding up laptops showing their block-coding programs
A boy holding up the wooden scissor-lift robot he built

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 Pre-K and Kindergarten classes; Pre-K students must be 4 years old to attend.

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