Full Day Sessions @ 4th Street

Let’s Build Together – in-person!

Single Day Sessions for 6 – 10 year olds
9a – 3p

98 4th Street, Gowanus

$165 + $20 materials fee
Extended Day available (3-5:30pm) for additional $25

Get 10% off when you register for 3 or more days in a single purchase.

Next Sessions:

Monday – Wednesday, December 27th-29th

We will be running online sessions from 9a-12p and 1p-4p ET (6a-9a and 10a-1p PT). All the same fun as our in-person sessions without having to go out into the cold! More information here.

Monday, January 17th

9a – 3p ET + optional extended stay
Let it snow! We’ll be enjoying a snow day together as we build adorable Snowbots and have a great time with other frosty crafts and icy activities!

Tuesday, February 1st

9a – 3p ET + optional extended stay
It’s Lunar New Year! Time to celebrate the year of the Tiger together. We’ll be making an awesome light-up Lunar Lantern and other fun activities to start the year with a roar!

Monday, February 21st

9a – 3p ET + optional extended stay
Themes and project details coming soon, but we know it’ll be lots of fun!

Program Details:

  • Our Full Day Sessions run from 9a – 3p, with an optional extended stay until 5:30p. Drop-off and pick-up will happen at the door. Please understand that we can not allow parents or siblings inside the Foundry at this time.
  • We will build one robot project each day, which is listed in the description for that day. We will also be doing additional crafts, experiments, playing games, and having lots of movement breaks! We also hope to take advantage of our backyard whenever weather permits.
  • Each child will have their own building/playing station, as well as their own tools. Children will be required keep 3 feet of distance from each other and to wear a mask, except when eating.
  • The sessions are fun. Super fun! It’s our goal to make sure the kids all have a blast while doing and learning awesome things. No previous robot experience required!
  • Open to children 6-10 years old. We recommend our online program for children 10-12 years old, as well as those who wish to take part in our Inventors program.


  1. Where are you located? 98 4th Street, at Bond Street, in Gowanus, Brooklyn. We are located at Suite 106, which has it’s own entrance – just look for the bright orange doors! Map it!
  2. The class is sold out. What do I do now? Please email us. If the session is sold out, it means we have reached our capacity. However, if someone cancels we can reach out to you to see if you’d like to take their place.
  3. What is your cancellation policy? See our cancellation policy.
  4. When is morning drop-off? Our doors open at 9am.
  5. When is pick-up? Normal pickup is at 3pm.
  6. Will you be offering an extended day option? Yes, we are pleased to offer an optional extended stay until 5:30pm most days. Choose this add-on when registering to guarantee availability.
  7. Will you be offering the Robot Inventors program? Our Inventors program is available online for children 8-12 years old, but we will not be offering it in-person at this time.
  8. What should my child bring?
    • A packed lunch (that does not contain any nuts or peanuts)
    • A snack (that does not contain any nuts or peanuts)
    • A water bottle
    • A reusable tote to bring their robots home
    • Please apply sunscreen before arriving
  9. Will food/lunch/snacks be provided? No, we do not provide food. Please send your child with a packed lunch and snacks that do not contain any nuts or peanuts.
  10. Some programs that my children attend require medical forms from our doctor. Does your program require this form? No, we do not need that form. We just need you to fill out all information during the registration process which includes general medical questions about your child.
  11. Will my child take the robots home? Yes! One of the criteria we use when designing our activities is selecting materials and projects that kids can continue to work on and tinker with after the program is over.
  12. Will there be outside time each day? We will spend some time outside every day. Please send your child with appropriate clothing (raincoats, sunblock applied, etc).
  13. What ages do you accept into the sessions? Our in-person sessions are for 6-10 year olds. We also offer online sessions for 6-12 year olds.
  14. My child has never built robots before, is that okay? Sure, no problem at all! They don’t have to have any experience, we will teach them all they need to know.
  15. What is the child to teacher ratio? Our maximum ratio is 8 children to one adult staff member, however it is usually lower than that during our classes.
  16. What happens if the program can’t run in-person due to Covid restrictions? If we are not able to run in-person any day, will offer an online program in it’s place. Usually the sessions take place from 9a-12p or 1p-4p. Although it is a shorter session, we will make all of the same projects we had planned to make in-person. We will arrange a time for families to pick up their robot supplies before the session begins.